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BIOLOGY M.C.Q (1 Marks)

Anatomy of Flowering Plants · Gujarat Board (GSEB) STD 11 Science (GSEB - English Medium). 162 questions.

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M.C.Q (1 Marks)

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162 questions · auto-graded multiple-choice test.

MCQ 11 Mark
For union between stock and scion in grafting which one is the first to occur?
  • ✓
    Formation of callus.
  • B
    Production of plasmodesmata.
  • C
    Differentiation of new vascular tissues.
  • D
    Regeneration of cortex and epidermis.
Answer
Correct option: A.
Formation of callus.
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MCQ 21 Mark
Where would you look for active cell division in plants?
  • A
    In the pith cells
  • B
    In the cells of cortex
  • C
    In the internodal region
  • ✓
    At the tip of root and shoot
Answer
Correct option: D.
At the tip of root and shoot
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MCQ 31 Mark
When we peel the skin of a potato tuber, we remove:
  • ✓
    Periderm.
  • B
    Epidermis.
  • C
    Cuticle.
  • D
    Sapwood.
Answer
Correct option: A.
Periderm.
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MCQ 41 Mark
Which of the cells is enucleate at maturity?
  • A
    Palisade cell.
  • B
    Companion cells.
  • ✓
    Sieve tube.
  • D
    Cortical cell.
Answer
Correct option: C.
Sieve tube.
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MCQ 51 Mark
What is the name of modified root in turnip?
  • A
    Prop root.
  • ✓
    Tap root.
  • C
    Tubour.
  • D
    Pneumatophore.
Answer
Correct option: B.
Tap root.
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MCQ 61 Mark
Epiblema of roots is equivalent to:
  • A
    Pericycle.
  • B
    Endodermis.
  • ✓
    Epidermis.
  • D
    Sele.
Answer
Correct option: C.
Epidermis.
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MCQ 71 Mark
Endodermis cells are rich in:
  • A
    Cellulose
  • ✓
    Starch grains
  • C
    Fibers
  • D
    Resins and wax
Answer
Correct option: B.
Starch grains
Endodermis cells are rich in starch grains.
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MCQ 81 Mark
Interfascicular cambium and cork cambium are formed due to:
  • A
    Cell division.
  • B
    Cell differentiation.
  • ✓
    Cell dedifferentiation.
  • D
    Redifferentiation.
Answer
Correct option: C.
Cell dedifferentiation.
The phenomenon of regeneration of permanent tissue to become meristematic is called dedifferentiation. Cork cambium, wound cambium and interfascicular vascular cambium are the examples of secondary meristems which are always produced through dedifferentiation.
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MCQ 91 Mark
$...........$ cells have lignified walls.
  • A
    Collenchyma
  • B
    Parenchyma
  • ✓
    Sclerenchyma
  • D
    Xylem parenchyma
Answer
Correct option: C.
Sclerenchyma
Sclerenchyma cells have thick lignified walls.
The lignified wall gives sclerenchyma cells their rigidity and helps in providing mechanical support.
Collenchyma and parenchyma cells do not have lignified walls.
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MCQ 101 Mark
Out of diffuse porous and ring porous woods, which is correct?
  • A
    Ring porous wood, carries more water for short period.
  • B
    Diffuse porous wood carries more water.
  • ✓
    Ring porous wood carries more water when need is higher.
  • D
    Diffuse porous wood is less specialized but conducts water rapidly through out.
Answer
Correct option: C.
Ring porous wood carries more water when need is higher.
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MCQ 111 Mark
Vessels are found in:
  • A
    All angiosperms and some gymnosperms.
  • ✓
    Most of angiosperms and few gymnosperms.
  • C
    All angiosperms and few gymnosperms and some pteridophytes.
  • D
    All pteridophytes.
Answer
Correct option: B.
Most of angiosperms and few gymnosperms.
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MCQ 121 Mark
Vascular tissues in flowering plants develop from:
  • A
    Phellogen.
  • ✓
    Plerome.
  • C
    Periblem.
  • D
    Dermatogen.
Answer
Correct option: B.
Plerome.
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MCQ 131 Mark
The cork cambium, cork and secondary cortex are collectively called:
  • ✓
    Periderm.
  • B
    Phelloderm.
  • C
    Phellogen.
  • D
    Phellem.
Answer
Correct option: A.
Periderm.
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MCQ 141 Mark
What is not true about sclereids?
  • ✓
    These are parenchyma cells with thickened lignified walls.
  • B
    These are elongated and flexible with tapered ends.
  • C
    These are commonly found in the shells of nuts and in the pulp of guava, pear etc.
  • D
    These are also called the stone cells.
Answer
Correct option: A.
These are parenchyma cells with thickened lignified walls.
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MCQ 151 Mark
Stem develops from:
  • A
    Radicle
  • B
    Cotyledon
  • C
    Mesocarp
  • ✓
    Plumule
Answer
Correct option: D.
Plumule
Stem develops from plumule.
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MCQ 161 Mark
The buds that are present at the tip of stem or a branch are called as:
  • ✓
    Apical bud
  • B
    Axillary bud
  • C
    Vegetative bud
  • D
    Floral bud
Answer
Correct option: A.
Apical bud
An apical bud is the primary growing bud located at the tip of the stem in a plant.
Apical buds make auxin that is distributed throughout the plant via the phloem.
Auxin prevents the growth of lateral buds.
This phenomenon is called apical dominance.
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MCQ 181 Mark
What is true about a monocot leaf?
  • A
    Reticulate venation.
  • B
    Absence of bulliform cells from epidermis.
  • ✓
    Mesophyll not differentiated into palisade and spongy tissues.
  • D
    Well diffferentiated mesophyll.
Answer
Correct option: C.
Mesophyll not differentiated into palisade and spongy tissues.
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MCQ 191 Mark
Closed vascular bundles lacks.
  • A
    Pith
  • B
    Xylem
  • ✓
    Cambium
  • D
    Xylem vessels
Answer
Correct option: C.
Cambium

Picture of closed conjoint vascular bundles.
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MCQ 201 Mark
Phellogen and phellem respectively denote.
  • ✓
    Cork cambium and cork.
  • B
    Cork and cork cambium.
  • C
    Secondary cortex and cork.
  • D
    Cork and secondary cortex.
Answer
Correct option: A.
Cork cambium and cork.
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MCQ 211 Mark
Thickest cell wall is seen in $..........$ cell.
  • ✓
    Sclerenchyma
  • B
    Parenchyma
  • C
    Collenchyma
  • D
    Both $A$ and $B$
Answer
Correct option: A.
Sclerenchyma
The chief mechanical tissue of the plant body composed of highly thick $-$ walled cells with little or no protoplasm is called sclerenchyma.
These tissues have thick cell wall due to the deposition of cellulose or lignin or both.
Lignin deposited cells are said to be lignified.
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MCQ 221 Mark
What is the name of the whorl containing colourful parts of flower?
  • A
    Petal.
  • B
    Sepal.
  • C
    Calyx.
  • ✓
    Corolla.
Answer
Correct option: D.
Corolla.
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MCQ 231 Mark
Roots develop from which part of seed?
  • A
    Plumule.
  • B
    Cotyledons.
  • ✓
    Radicle.
  • D
    Endosperm.
Answer
Correct option: C.
Radicle.
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MCQ 241 Mark
A narrow layer of thin walled cells found between phloem$/$ bark and wood of a dicot is:
  • A
    Cork cambium.
  • ✓
    Vascular cambium.
  • C
    Endodermis.
  • D
    Pericycle.
Answer
Correct option: B.
Vascular cambium.
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MCQ 251 Mark
Collenchyma occurs in the stem and petioles of:
  • A
    Xerophytes.
  • B
    Monocots.
  • ✓
    Dicot herbs.
  • D
    Hydrophytes.
Answer
Correct option: C.
Dicot herbs.
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MCQ 261 Mark
Which of the following substances is absent in the cell walls of sclerenchyma?
  • A
    Cellulose
  • ✓
    Pectin
  • C
    Lignin
  • D
    Hemicellulose
Answer
Correct option: B.
Pectin
The sclerenchyma tissue has rectangular $-$ shaped cells.
These cells are without a nucleus and protoplasm.
They show greater deposition of lignin in the walls resulting in uneven thickness and are referred to as the dead cells.
Cellulose and hemicellulose are also present in the sclerenchyma wall. Pectin is present in soft plant tissues and absent in sclerenchyma.
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MCQ 271 Mark
Pith and cortex belongs to:
  • A
    Epidermis
  • ✓
    Ground tissue
  • C
    Vascular tissue
  • D
    Bundle sheath
Answer
Correct option: B.
Ground tissue
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MCQ 281 Mark
Some vascular bundles are described as open because these:
  • A
    Are not surrounded by pericycle.
  • B
    Are surrounded by pericycle but no endodermis.
  • ✓
    Are capable of producing secondary xylem and phloem.
  • D
    Possess conjunctive tissue between xylem and phloem.
Answer
Correct option: C.
Are capable of producing secondary xylem and phloem.
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MCQ 291 Mark
Identify the simple tissue from among the following.
  • ✓
    Parenchyma.
  • B
    Xylem.
  • C
    Epidermis.
  • D
    Phloem.
Answer
Correct option: A.
Parenchyma.
Parenchyma is a simple permanent tissue found in plants whereas; xylem and phloem are complex permanent tissues. Epidermis is a part of epidermal tissue system.
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MCQ 301 Mark
Match the followings and choose the correct option from below.
  Column $I$   Column $II$
$A$ Meristem $i.$ Photosynthesis, storange
$B$ Parenchyma $ii.$ Mechanical support
$C$ Collenchyma $iii.$ Actively dividing cells
$D$ Sclernchyma $iv.$ Stomata
$E$ Epidermal tissuse $v.$ Sdereids
  • A
    $\text{A(i), B(iii), C(v), D(ii), E(iv)}$
  • ✓
    $\text{A(iii), B(i), C(ii), D(v), E(iv)}$
  • C
    $\text{A(ii), B(iv), C(v), D(i), E(iii)}$
  • D
    $\text{A(v), B(iv), C(iii),D(ii), E(i)}$
Answer
Correct option: B.
$\text{A(iii), B(i), C(ii), D(v), E(iv)}$
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MCQ 311 Mark
Ground tissue consists of:
  • A
    All tissues internal to endodermis.
  • B
    Epidermis and cortex.
  • ✓
    All tissues except epidermis and vascular bundles.
  • D
    All tissue external to endodermis.
Answer
Correct option: C.
All tissues except epidermis and vascular bundles.
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MCQ 321 Mark
A conjoint and open vascular bundle will be observed in the transverse section of:
  • A
    Monocot root.
  • B
    Monocot stem.
  • C
    Dicot root.
  • ✓
    Dicot stem.
Answer
Correct option: D.
Dicot stem.
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MCQ 331 Mark
Heartwood differs from sapwood in:
  • A
    Presence of rays and fibres.
  • B
    Absence of vessels and parenchyma.
  • ✓
    Having dead and non$-$conducting elements.
  • D
    Being susceptible to pests and pathogens.
Answer
Correct option: C.
Having dead and non$-$conducting elements.
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MCQ 341 Mark
Function of companion cells is:
  • ✓
    Loading of sucrose into sieve elements.
  • B
    Providing water to phloem.
  • C
    Loading of sucrose into sieve elements by passive transport.
  • D
    Providing energy to sieve elements for active transport.
Answer
Correct option: A.
Loading of sucrose into sieve elements.
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MCQ 351 Mark
The length of different internodes in a culm of sugarcane is variable because of:
  • A
    Shoot apical meristem.
  • B
    Position of axillary buds.
  • C
    Size of leaf lamina at the node below each internode.
  • ✓
    Intercalary meristem.
Answer
Correct option: D.
Intercalary meristem.
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MCQ 361 Mark
Plant growth in length is increased by:
  • ✓
    Apical meristem
  • B
    Lateral meristem
  • C
    Dermatogen
  • D
    Periblem
Answer
Correct option: A.
Apical meristem
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MCQ 371 Mark
Living cells of xylem are $..........$
  • ✓
    Xylem parenchyma
  • B
    Xylem fibres
  • C
    Vessels
  • D
    Tracheids
Answer
Correct option: A.
Xylem parenchyma
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MCQ 381 Mark
Quiescent centre is present in the.
  • A
    Apical meristem
  • B
    Shoot meristem
  • C
    Lateral meristem
  • ✓
    Root meristem
Answer
Correct option: D.
Root meristem
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MCQ 401 Mark
Pith is very well developed in:
  • A
    Monocot root and monocot stem.
  • B
    Monocot root and dicot root.
  • C
    Dicot root and monocot stem.
  • ✓
    Monocot root and dicot stem.
Answer
Correct option: D.
Monocot root and dicot stem.
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MCQ 411 Mark
At maturity which of the following is enucleate?
  • ✓
    Sieve cell.
  • B
    Companion cell.
  • C
    Palisade cell.
  • D
    Cortical cell.
Answer
Correct option: A.
Sieve cell.
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MCQ 421 Mark
A bicollateral vascular bundle is characterised by:
  • A
    Phloem being sandwitched between xylem.
  • B
    Transverse splitting of vascular bundle.
  • C
    Longitudinal splitting of vascular bundle.
  • ✓
    Xylem being sandwitched between phloem.
Answer
Correct option: D.
Xylem being sandwitched between phloem.
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MCQ 431 Mark
Which of the following does not have stomata?
  • ✓
    Submerged hydrophytes.
  • B
    Mesophytes.
  • C
    Hydrophytes.
  • D
    None of these.
Answer
Correct option: A.
Submerged hydrophytes.
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MCQ 441 Mark
Collenchyma differs from parenchyma in having.
  • ✓
    Pectin deposits at corners.
  • B
    Vacuoles.
  • C
    Cellulose walls.
  • D
    living protoplasm.
Answer
Correct option: A.
Pectin deposits at corners.
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MCQ 451 Mark
Which of the following layer is present nearest of plasma membrane in plant cell?
  • ✓
    Tonoplast.
  • B
    Middle lamella.
  • C
    Secondary wall.
  • D
    Primary wall.
Answer
Correct option: A.
Tonoplast.
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MCQ 461 Mark
Pericycle of roots produces.
  • A
    Mechanical support.
  • ✓
    Lateral roots.
  • C
    Vascular bundles.
  • D
    Adventitious buds.
Answer
Correct option: B.
Lateral roots.
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MCQ 471 Mark
Which of the following helps in the curling of the leaf surface?
  • ✓
    Bulliform cells.
  • B
    Xylem tissue.
  • C
    Palisade parenchyma.
  • D
    Bundle sheath cells.
Answer
Correct option: A.
Bulliform cells.
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MCQ 491 Mark
What is the fate of primary xylem in a dicot root showing extensive secondary growth?
  • ✓
    It is retained in the centre of the axis.
  • B
    It gets crushed.
  • C
    May or may not get crushed.
  • D
    If gets surrounded by primary phloem.
Answer
Correct option: A.
It is retained in the centre of the axis.
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MCQ 501 Mark
The innermost layer of cortex which shows casparian thickenings in its cells is called as:
  • A
    Epidermis
  • ✓
    Endodermis
  • C
    Pericycle
  • D
    Exodermis
Answer
Correct option: B.
Endodermis
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MCQ 511 Mark
Periderm is produced by:
  • A
    Vascular cambium.
  • B
    Fascicular cambium.
  • ✓
    Phellogen.
  • D
    Intrafascicular cambium.
Answer
Correct option: C.
Phellogen.
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MCQ 521 Mark
Bordered pits are found in:
  • A
    Sieve cells.
  • ✓
    Vessel wall.
  • C
    Companion cells.
  • D
    Sieve tube wall.
Answer
Correct option: B.
Vessel wall.
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MCQ 531 Mark
Pith is a central part of the ground tissue generally made up of:
  • ✓
    Parenchyma
  • B
    Collenchyma
  • C
    Chlorenchyma
  • D
    Sclerenchyma
Answer
Correct option: A.
Parenchyma
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MCQ 541 Mark
Cells in which end walls are absent are:
  • A
    Parenchyma
  • B
    Sclerenchyma
  • ✓
    Vessels
  • D
    Sieve tubes
Answer
Correct option: C.
Vessels
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MCQ 551 Mark
The chief water conducting elements of xylem in gymnosperms are:
  • ✓
    Tracheids.
  • B
    Fibres.
  • C
    Transfusion tissue.
  • D
    None of these.
Answer
Correct option: A.
Tracheids.
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MCQ 561 Mark
Lateral roots originate from:
  • A
    Epidermis.
  • ✓
    Pericycle.
  • C
    Endodermis.
  • D
    Cortex.
Answer
Correct option: B.
Pericycle.
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MCQ 571 Mark
Axillary bud and terminal bud are derived from the activity of:
  • A
    Lateral meristem.
  • B
    Intercalary meristem.
  • ✓
    Apical meristem.
  • D
    Parenchyma.
Answer
Correct option: C.
Apical meristem.
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MCQ 581 Mark
Which of the following statements is true?
  • ✓
    Vessels are multicellular with narrow lumen.
  • B
    Tracheids are multicellular with narrow lumen.
  • C
    Vessels are unicellular with wide lumen.
  • D
    Tracheids are unicellular with wide lumen.
Answer
Correct option: A.
Vessels are multicellular with narrow lumen.
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MCQ 601 Mark
In endarch condition of xylem, protoxylem lies $...........$ of metaxylem.
  • ✓
    On inner side.
  • B
    On outer side.
  • C
    Both on inner and outer side.
  • D
    In centre.
Answer
Correct option: A.
On inner side.
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MCQ 611 Mark
Centripetal xylem is present in:
  • ✓
    Dicot root
  • B
    Dicot stem
  • C
    Monocot stem
  • D
    Branches of stem
Answer
Correct option: A.
Dicot root
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MCQ 621 Mark
A transverse section of stem is stained first with safranin and then with fast green following the usual schedule of double staining for the preparation of a permanent slide. What would be the colour of the stained xylem and phloem?
  • ✓
    Red and green.
  • B
    Green and red.
  • C
    Orange and yellow.
  • D
    Purple and orange.
Answer
Correct option: A.
Red and green.
The xylem is coloured red with safrinin and phloem green with fast green, where as other colors are not given by safranin and fast green.
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MCQ 631 Mark
Which of the following is not a feature of spring wood?
  • A
    Colour of the wood is light.
  • B
    Density is less.
  • C
    Cambium is active.
  • ✓
    Lesser number of xylary elements.
Answer
Correct option: D.
Lesser number of xylary elements.
Spring season produces a wood which has large number of xylary elements having vessels with wider cavities.
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MCQ 641 Mark
Match the followings and choose the correct option from below.
  Column $I$   Column $II$
$A$ Cuticle $i.$ Guard cells
$B$ Bulli from cell $ii.$ Single layer
$C$ Stomata $iii.$ Waxy layer
$D$ Epidermis $iv.$ Empty colourless cell
  • ✓
    $\text{A(iii), B(iv), C(i), D(ii)}$
  • B
    $\text{A(i), B(ii), C(iii), D(iv)}$
  • C
    $\text{A(iii), B(ii), C(iv), D(i)}$
  • D
    $\text{A(iii), B(ii), C(i), D(iv)}$
Answer
Correct option: A.
$\text{A(iii), B(iv), C(i), D(ii)}$
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MCQ 651 Mark
Largest bud is of:
  • ✓
    Cabbage
  • B
    Cauliflower
  • C
    Broccoli
  • D
    Onion
Answer
Correct option: A.
Cabbage
Cabbage, cauliflower, broccoli, brussels are members of the genus Brassica.
These are commonly used for food.
The head of cabbage is the largest terminal $($apical$)$ bud which occurs at the end of a stem.
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MCQ 661 Mark
Which exposed wood will decay faster?
  • ✓
    Sapwood.
  • B
    Softwood.
  • C
    Wood with lot of fibres.
  • D
    Heartwood.
Answer
Correct option: A.
Sapwood.
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MCQ 671 Mark
Passage cells are thin walled cells found in:
  • ✓
    Endodermis of roots facilitating rapid transport of water from cortex to pericycle.
  • B
    Phloem elements that serve as entry points for substances for transport to other plant parts.
  • C
    Testa of seeds to enable emergence of growing embryonic axis during seed germination.
  • D
    Central region of style through which the pollen tube grows towards the ovary.
Answer
Correct option: A.
Endodermis of roots facilitating rapid transport of water from cortex to pericycle.
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MCQ 681 Mark
In Passiflora, the tendrils are modification of:
  • ✓
    Axillary buds
  • B
    Upper leaflets
  • C
    Whole leaves
  • D
    Stipules
Answer
Correct option: A.
Axillary buds
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MCQ 691 Mark
The apical meristem of the root is present.
  • ✓
    In all the roots.
  • B
    Only in radicals.
  • C
    Only in tap roots.
  • D
    Only in adventitious roots.
Answer
Correct option: A.
In all the roots.
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MCQ 701 Mark
Periderm is composed of of:
  • A
    Cork cambium.
  • B
    Cork and secondary cortex.
  • C
    Cork and cork cambium.
  • ✓
    Cork, cork cambium and secondary cortex.
Answer
Correct option: D.
Cork, cork cambium and secondary cortex.
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MCQ 711 Mark
In sclerenchyma, cell wall is:
  • ✓
    Lignified
  • B
    Suberised
  • C
    Pectinised
  • D
    Cutinised
Answer
Correct option: A.
Lignified
Sclerenchyma cells are characterized by relatively thick, lignified secondary cell walls. The lignified wall gives sclerenchyma cells their rigidity and helps in providing mechanical support.
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MCQ 721 Mark
The cells of the quiescent centre are characterised by:
  • A
    Dividing regularly to add to tunica.
  • B
    Having dense cytoplasm and prominent nuclei.
  • ✓
    Having light cytoplasm and small nuclei.
  • D
    Dividing regularly to add to the corpus.
Answer
Correct option: C.
Having light cytoplasm and small nuclei.
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MCQ 731 Mark
Four radial vascular bundles are found in:
  • A
    Dicot root.
  • ✓
    Monocot root.
  • C
    Dicot stem.
  • D
    Monocot stem.
Answer
Correct option: B.
Monocot root.
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MCQ 741 Mark
In which of the following pairs of parts of a flowering plant is epidermis absent?
  • ✓
    Root tip and shoot tip.
  • B
    Shoot bud and floral bud.
  • C
    Ovule and seed.
  • D
    Petiole and pedicel Maim.
Answer
Correct option: A.
Root tip and shoot tip.
Root tip and shoot tip have meristematic cells and hence epidermis is absent. Epidermis has differentiated cells which is not the case in case of meristem.
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MCQ 751 Mark
What is the function of adventitious roots?
  • A
    Anchorage.
  • ✓
    Vegetative Propagation.
  • C
    Food Storage.
  • D
    Oxygen intake.
Answer
Correct option: B.
Vegetative Propagation.
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MCQ 761 Mark
As the secondary growth takes place $($proceeds$)$ in a tree, thickness of:
  • A
    Heartwood increases.
  • B
    Sapwood increases.
  • ✓
    Both increase.
  • D
    Both remain the same.
Answer
Correct option: C.
Both increase.
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MCQ 781 Mark
Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by:
  • A
    Presence of cortex.
  • ✓
    Position of protoxylem.
  • C
    Absence of secondary xylem.
  • D
    Absence of secondary phloem.
Answer
Correct option: B.
Position of protoxylem.
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MCQ 791 Mark
A vessel less piece of stem possessing prominent sieve tubes would belong to:
  • A
    Pinus.
  • B
    Eucalyptus.
  • C
    Grass.
  • ✓
    Trochodendron.
Answer
Correct option: D.
Trochodendron.
Trochodendron lacks vessel elements which is quite unusual for flowering plants. Only one living species of trochodendron is known to exist.
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MCQ 801 Mark
The quiescent centre in root meristem serves as a.
  • ✓
    Reserve for replenishment of damaged cells of the meristem.
  • B
    Region for absorption of water.
  • C
    Reservoir of growth hormones.
  • D
    Site for storage of food which is utilized during maturation.
Answer
Correct option: A.
Reserve for replenishment of damaged cells of the meristem.
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MCQ 811 Mark
Cells of this tissue are living and show angular wall thickening. They also provide mechanical support. The tissue is:
  • A
    Xylem.
  • B
    Sclerenchyma.
  • ✓
    Collenchyma.
  • D
    Epidermis.
Answer
Correct option: C.
Collenchyma.
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MCQ 821 Mark
Chlorenchyma is known to develop in the.
  • A
    Pollen tube of Pinus.
  • B
    Cytoplasm of Chlorella.
  • C
    Mycelium of a green mould such as Aspergillus.
  • ✓
    Spore capsule of a moss.
Answer
Correct option: D.
Spore capsule of a moss.
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MCQ 831 Mark
Which of the following plant shows multiple epidermis?
  • ✓
    Nerium.
  • B
    Croton.
  • C
    Allium.
  • D
    Cucurbita.
Answer
Correct option: A.
Nerium.
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MCQ 841 Mark
What happens during vascularization in plants?
  • A
    Differentiation of procambium is immediately followed by the development of secondary xylem and phloem.
  • ✓
    Differentiation of procambium followed by the development of xylem and phloem.
  • C
    Differentiation of procambium, xylem and phloem is simultaneous.
  • D
    Differentiation of procambium followed by the development of primary phloem and then by primary xylem.
Answer
Correct option: B.
Differentiation of procambium followed by the development of xylem and phloem.
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MCQ 851 Mark
Stem grows in girth due to:
  • A
    Outer cortical.
  • B
    Epidermis.
  • ✓
    Vascular cambium.
  • D
    Phellogen.
Answer
Correct option: C.
Vascular cambium.
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MCQ 861 Mark
When bark is cut from stem, which of the following vascular tissue is removed?
  • A
    Xylem
  • ✓
    Phloem
  • C
    Parenchyma
  • D
    All of the above
Answer
Correct option: B.
Phloem
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MCQ 881 Mark
Organization of stem apex into corpus and tunica is determined mainly by:
  • ✓
    Planes of cell division.
  • B
    Regions of meristematic activity.
  • C
    Rate of cell growth.
  • D
    Rate of shoot tip growth.
Answer
Correct option: A.
Planes of cell division.
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MCQ 891 Mark
Which meristem influences the shape of the mature plants?
  • A
    Lateral meristem
  • ✓
    Apical meristem
  • C
    Intercallary meristem
  • D
    All of the above
Answer
Correct option: B.
Apical meristem
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MCQ 901 Mark
Select the part of seed which grows to become stem.
  • ✓
    Plumule.
  • B
    Cotyledons.
  • C
    Radicle.
  • D
    Endosperm.
Answer
Correct option: A.
Plumule.
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MCQ 911 Mark
Which of the following is responsible for secondary growth in woody plants?
  • A
    Xylem
  • B
    Phloem
  • ✓
    Vascular cambium
  • D
    Pith
Answer
Correct option: C.
Vascular cambium
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MCQ 921 Mark
What is the function of endosperm in seeds?
  • A
    Providing nutrition during dormant phase.
  • ✓
    Providing nutrition during germination.
  • C
    Providing nutrition to new leaves.
  • D
    All of the above.
Answer
Correct option: B.
Providing nutrition during germination.
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MCQ 931 Mark
Passage cells occur in:
  • A
    Root epidermis.
  • ✓
    Root endodermis's ion.
  • C
    Stem epidermiston.
  • D
    Stem endodermis.
Answer
Correct option: B.
Root endodermis's ion.
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MCQ 941 Mark
In land plants, the guard cells differ from other epidermal cells in having.
  • ✓
    Chloroplasts.
  • B
    Mitochondria.
  • C
    Cytoskeleton.
  • D
    Endoplasmic reticulum.
Answer
Correct option: A.
Chloroplasts.
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MCQ 951 Mark
The fascicular cambium and cork cambium are examples of:
  • A
    Apical meristem moltada too.
  • ✓
    Lateral meristem.
  • C
    Intercalary meristem.
  • D
    Primary meristem.
Answer
Correct option: B.
Lateral meristem.
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MCQ 971 Mark
Cells taking part in conduction of sap are:
  • A
    Sieve tubes
  • ✓
    Tracheae
  • C
    Stone cells
  • D
    Companion cells
Answer
Correct option: B.
Tracheae
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MCQ 981 Mark
The common bottle cork is a product of:
  • ✓
    Phellogen.
  • B
    Vascular cambium.
  • C
    Dermatogen.
  • D
    Xylem.
Answer
Correct option: A.
Phellogen.
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MCQ 991 Mark
In a woody dicotyledonous tree, which of the following parts will mainly consist of primary tissues?
  • A
    All parts.
  • B
    Stem and root.
  • C
    Flowers, fruits and leaves.
  • ✓
    Shoot tips and root tips.
Answer
Correct option: D.
Shoot tips and root tips.
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MCQ 1001 Mark
The chief water conducting elements of xylem in gymnosperms are:
  • A
    Vessels.
  • B
    Fibres.
  • C
    Transfusion tissue.
  • ✓
    Tracheids.
Answer
Correct option: D.
Tracheids.
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MCQ 1011 Mark
Vessels occur in:
  • A
    All angiosperms, all gymnosperms and some pteridophytes.
  • B
    All angiosperms and some gymnosperms.
  • ✓
    Most angiosperms, a few gymnosperms and pteridophytes.
  • D
    All pteridophytes.
Answer
Correct option: C.
Most angiosperms, a few gymnosperms and pteridophytes.
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MCQ 1021 Mark
Callose deposition is found in:
  • A
    Tracheids.
  • B
    Companion cells.
  • ✓
    Sieve areas.
  • D
    Phloem parenchyma.
Answer
Correct option: C.
Sieve areas.
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MCQ 1041 Mark
Epidermis is absent in:
  • ✓
    Root tip and shoot tip.
  • B
    Ovule and seed.
  • C
    Shoot bud and floral bud.
  • D
    Petiole and pedice.
Answer
Correct option: A.
Root tip and shoot tip.
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MCQ 1051 Mark
For a critical study of secondary growth in plants, which one of the following pairs is suitable?
  • A
    Sugarcane and sunflower.
  • ✓
    Teak and pine.
  • C
    Deodar and fern.
  • D
    Wheat and maiden hair fern.
Answer
Correct option: B.
Teak and pine.
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MCQ 1061 Mark
Apical meristem is found in:
  • A
    Roots
  • B
    Stem
  • ✓
    Both $A$ and $B$
  • D
    None of these
Answer
Correct option: C.
Both $A$ and $B$
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MCQ 1071 Mark
Cork cambium and vascular cambium are:
  • A
    Parts of secondary xylem and phloem.
  • B
    Parts of pericycle.
  • ✓
    Lateral meristems.
  • D
    Apical meristems.
Answer
Correct option: C.
Lateral meristems.
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MCQ 1081 Mark
A vascular bundle in which the protoxylem is pointing to the periphery is called.
  • ✓
    Exarch.
  • B
    Closed.
  • C
    Endarch.
  • D
    Radial.
Answer
Correct option: A.
Exarch.
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MCQ 1091 Mark
Which of the following statements is true?
  • ✓
    Tracheids are unicellular with wide lumen.
  • B
    Vessels are unicellular with wide lumen.
  • C
    Tracheids are multicellular with narrow lumen.
  • D
    Vessels are multicellular with narrow lumen.
Answer
Correct option: A.
Tracheids are unicellular with wide lumen.
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MCQ 1101 Mark
Fusifrom initial cells of cambium from:
  • A
    Vascular rays.
  • ✓
    Tracheary elements.
  • C
    Ray parenchyma.
  • D
    Phloem parenchyma.
Answer
Correct option: B.
Tracheary elements.
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MCQ 1111 Mark
Function of companion cells is:
  • ✓
    Loading of sucrose into sieve elements.
  • B
    Providing energy to sieve elements for active transport.
  • C
    Providing water to phloem.
  • D
    Loading of sucrose into sieve elements by passive transport.
Answer
Correct option: A.
Loading of sucrose into sieve elements.
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MCQ 1121 Mark
Which of the following is true about heartwood?
  • ✓
    They are dead but gives mechanical support to stem.
  • B
    They are light in colour.
  • C
    They conduct water and minerals.
  • D
    $1$ and $3.$
Answer
Correct option: A.
They are dead but gives mechanical support to stem.
Heartwood is dead and have non$-$conducting elements.
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MCQ 1131 Mark
Which of the following plants shows parallel venation?
  • ✓
    Banana.
  • B
    Peepal.
  • C
    Mango.
  • D
    Black Gram.
Answer
Correct option: A.
Banana.
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MCQ 1141 Mark
What do you mean by closed vascular bundle?
  • A
    Presence of cambium
  • ✓
    Absence of cambium
  • C
    Presence of periderm
  • D
    None of these
Answer
Correct option: B.
Absence of cambium
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MCQ 1161 Mark
In conifers, fibers are likely to be absent in:
  • A
    Secondary phloem.
  • ✓
    Secondary xylem.
  • C
    Primary phloem.
  • D
    Leaves.
Answer
Correct option: B.
Secondary xylem.
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MCQ 1171 Mark
Thickness of stem increase due to activity of:
  • ✓
    Cambium
  • B
    Xylem
  • C
    Phloem
  • D
    Shoot apex
Answer
Correct option: A.
Cambium
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MCQ 1181 Mark
Starting from periphery and going towards centre which is the correct sequence of different whorls of a flower?
  • A
    Corolla, Calyx, Gynoecium, Androecium.
  • B
    Calyx, Corolla, Gynoecium, Androecium.
  • ✓
    Calyx, Corolla, Androecium, Gynoecium.
  • D
    Either $(b)$ or $(c).$
Answer
Correct option: C.
Calyx, Corolla, Androecium, Gynoecium.
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MCQ 1191 Mark
Which picture shows conjoint closed vascular bundles?
  • A
  • ✓
  • C
  • D
    None of these pictures shows conjoint closed vascular bundles.
Answer
Correct option: B.

Various types of vascular bundles $:(a)$ radial $(b)$ conjoint closed $(c)$ conjoint open.
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MCQ 1201 Mark
Which of the following shows modification of stem for food storage?
  • A
    Carrot.
  • B
    Turnip.
  • ✓
    Ginger.
  • D
    None of these.
Answer
Correct option: C.
Ginger.
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MCQ 1211 Mark
Procambium forms:
  • A
    Only primary vascular bundles.
  • B
    Only vascular cambium.
  • C
    Only cork cambium.
  • ✓
    Primary vascular bundles and vascular cambium.
Answer
Correct option: D.
Primary vascular bundles and vascular cambium.
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MCQ 1221 Mark
Which is correct about transport or conduction of substances?
  • ✓
    Organic food moves upwardly and downwardly through phloem.
  • B
    Inorganic food moves upwardly and downwardly through xylem.
  • C
    Organic food moves up through phloem.
  • D
    Organic food moves up through phloem.
Answer
Correct option: A.
Organic food moves upwardly and downwardly through phloem.
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MCQ 1231 Mark
Thickening of trunk in woody plants is due to:
  • ✓
    Cambium
  • B
    Apical meristem
  • C
    Intercalary meristem
  • D
    Epidermis
Answer
Correct option: A.
Cambium
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MCQ 1241 Mark
The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is:
  • A
    Widening.
  • B
    Differentiating.
  • ✓
    Maturing.
  • D
    Elongating.
Answer
Correct option: C.
Maturing.
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MCQ 1251 Mark
In a monocot leaf.
  • A
    Bulliform cells are absent from the eqidermis.
  • B
    Veins from a network.
  • C
    Mesophyll is well differentiated into palisade and spongy parenchyma.
  • ✓
    Mesophyll is not differentiated into palisade and spongy parenchyma.
Answer
Correct option: D.
Mesophyll is not differentiated into palisade and spongy parenchyma.
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MCQ 1261 Mark
Which part is responsible for growth of roots?
  • A
    Region of meristematic activity.
  • B
    Region of Elongation.
  • C
    Root cap.
  • ✓
    Both $(a)$ and $(b).$
Answer
Correct option: D.
Both $(a)$ and $(b).$
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MCQ 1271 Mark
Where do the Casparian bands occur?
  • A
    Epidermis.
  • ✓
    Endodermis.
  • C
    Pericycle.
  • D
    Phloem.
Answer
Correct option: B.
Endodermis.
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MCQ 1281 Mark
The function of vessels$/$ xylem is to:
  • A
    Translocate water and minerals.
  • B
    Translocate organic food.
  • C
    Translocate water alone.
  • ✓
    Translocate water, minerals and provide mechanical strength.
Answer
Correct option: D.
Translocate water, minerals and provide mechanical strength.
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MCQ 1291 Mark
Vessels differ from tracheids.
  • A
    In being living.
  • B
    In being derived from a single cell.
  • ✓
    In that they consist of vertical row of cells with cross walls dissolved.
  • D
    In coducting water and minerals.
Answer
Correct option: C.
In that they consist of vertical row of cells with cross walls dissolved.
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MCQ 1301 Mark
A narrow layer of thin walled cells found between phloem$/$ bark and wood of a dicot is:
  • ✓
    Vascular cambium.
  • B
    Pericycle.
  • C
    Cork cambium.
  • D
    Endodermis.
Answer
Correct option: A.
Vascular cambium.
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MCQ 1311 Mark
When a dicot leaf is exposed to sunlight, the light rays first pass through the epidermis and then through:
  • A
    Lower epidermis.
  • B
    Spongy parenchyma.
  • ✓
    Palisade parenchyma.
  • D
    Vascular bundles.
Answer
Correct option: C.
Palisade parenchyma.
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MCQ 1321 Mark
Tissue means $..........$
  • A
    Similar cells having common origin.
  • ✓
    Similar cells having common origin and functions.
  • C
    Cells having same metabolic activities.
  • D
    Similar cells with same metabolic activity.
Answer
Correct option: B.
Similar cells having common origin and functions.
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MCQ 1331 Mark
The stele found in monocot is:
  • A
    Haplostele
  • ✓
    Atactostele
  • C
    Dictyostele
  • D
    Actinostele
Answer
Correct option: B.
Atactostele
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MCQ 1341 Mark
The cork cambium, cork and secondary cortex are collectively called:
  • A
    Phelloderm.
  • B
    Phellogen.
  • ✓
    Periderm.
  • D
    Phellem.
Answer
Correct option: C.
Periderm.
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MCQ 1351 Mark
Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of:
  • A
    Epiphytes.
  • ✓
    Hydrophytes.
  • C
    Xerophytes.
  • D
    Mesophytes.
Answer
Correct option: B.
Hydrophytes.
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MCQ 1361 Mark
How many shoot apical meristems are likely to be present in a twig of a plant possessing, $4$ branches and $26$ leaves?
  • A
    $26$
  • B
    $1$
  • ✓
    $5$
  • D
    $30$
Answer
Correct option: C.
$5$
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MCQ 1371 Mark
Monocot leaves possess.
  • ✓
    Intercalary meristem.
  • B
    Lateral meristem.
  • C
    Apical meristem.
  • D
    Mass meristem.
Answer
Correct option: A.
Intercalary meristem.
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MCQ 1381 Mark
Vascular cambium produces.
  • A
    Primary xylem and primary phloem.
  • ✓
    Secondary xylem and secondary phloem.
  • C
    Primary xylem and secondary phloem.
  • D
    Secondary xylem and primary phloem.
Answer
Correct option: B.
Secondary xylem and secondary phloem.
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MCQ 1391 Mark
A common structural feature of vessel elements and sieve tube elements are:
  • A
    Pores on lateral walls.
  • B
    Presence of $p-$protein.
  • ✓
    Enucleate condition.
  • D
    Thick secondary walls.
Answer
Correct option: C.
Enucleate condition.
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MCQ 1401 Mark
A plant tissue, when stained, showed the presence of hemicellulose and pectin in cell wall of its cells. The tissue represents:
  • ✓
    Collenchyma.
  • B
    Sclerenchyma.
  • C
    Xylem.
  • D
    Meristem.
Answer
Correct option: A.
Collenchyma.
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MCQ 1411 Mark
The youngest layer of secondary xylem in a dicot stem undergoing secondary growth, is located:
  • A
    Between pith and primary xylem.
  • B
    Just outside the vascular cambium.
  • ✓
    Just inside the vascular cambium.
  • D
    Just inside the cork cambium.
Answer
Correct option: C.
Just inside the vascular cambium.
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MCQ 1421 Mark
Fusifrom initial cells of cambium from:
  • A
    Vascular rays.
  • ✓
    Tracheary elements.
  • C
    Ray parenchyma.
  • D
    Phloem parenchyma.
Answer
Correct option: B.
Tracheary elements.
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MCQ 1431 Mark
The fibres of commercial importance are obtained from:
  • A
    Parenchyma
  • B
    Collenchyma
  • C
    Chlorenchyma
  • ✓
    Sclerenchyma
Answer
Correct option: D.
Sclerenchyma
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MCQ 1441 Mark
After the secondary growth, the oldest layer of secondary phloem in a dicot stem is located.
  • A
    Just outside the vascular cambium.
  • B
    Just inside the vascular cambium.
  • ✓
    Just inside the vascular phloem.
  • D
    Just outside the secondary xylem.
Answer
Correct option: C.
Just inside the vascular phloem.
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MCQ 1451 Mark
Which of the following does not have stomata?
  • ✓
    Submerged hydrophytes.
  • B
    Xerophytes.
  • C
    Mesophytes.
  • D
    Hydrophytes.
Answer
Correct option: A.
Submerged hydrophytes.
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MCQ 1461 Mark
A piece of wood having no vessels $($trachea$)$ must be belonging to:
  • A
    Teak.
  • B
    Mango.
  • ✓
    Pine.
  • D
    Palm.
Answer
Correct option: C.
Pine.
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MCQ 1471 Mark
Formation of periderm is the function of:
  • A
    Vascular cambium
  • ✓
    Cork cambium
  • C
    Both vascular and cork cambium
  • D
    None
Answer
Correct option: B.
Cork cambium
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MCQ 1481 Mark
Loading of phloem is related to:
  • ✓
    Increase of sugar in phloem.
  • B
    Elongation of phloem cell.
  • C
    Separation of phloem parenchyma.
  • D
    Strengthening of phloem fibre.
Answer
Correct option: A.
Increase of sugar in phloem.
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MCQ 1491 Mark
Which one of the following is not a lateral meristem?
  • A
    Intrafascicular cambium.
  • B
    Interfascicular cambium.
  • C
    Phellogen.
  • ✓
    Intercalary meristem.
Answer
Correct option: D.
Intercalary meristem.
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MCQ 1501 Mark
A leaf primordium grows into the adult leaf lamina by means of:
  • A
    Apical meristem.
  • B
    Lateral meristem.
  • C
    Marginal meristem.
  • ✓
    At first by apical meristem and later largely by marginal meristem.
Answer
Correct option: D.
At first by apical meristem and later largely by marginal meristem.
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MCQ 1511 Mark
Which of the following meristems is responsible for extrastelar secondary growth in dicotyledonous stem?
  • A
    Intrafascicular cambium.
  • B
    Interfascicular cambium.
  • C
    Intercalary meristem.
  • ✓
    Phellogen.
Answer
Correct option: D.
Phellogen.
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MCQ 1521 Mark
Companion cells in angiosperms are associated with:
  • A
    Xylem vessels.
  • B
    Guard cells.
  • C
    Xylem tracheids.
  • ✓
    Sieve tubes.
Answer
Correct option: D.
Sieve tubes.
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MCQ 1531 Mark
$Y-$shaped arrangement of xylem vessels is found in:
  • ✓
    Monocot stem.
  • B
    Monocot root.
  • C
    Both.
  • D
    None of these.
Answer
Correct option: A.
Monocot stem.
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MCQ 1541 Mark
Abnormal$/$ anomalous secondary growth occurs in:
  • ✓
    Dracaena.
  • B
    Ginger.
  • C
    Wheat.
  • D
    Sunflower.
Answer
Correct option: A.
Dracaena.
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MCQ 1551 Mark
An organized and differentiated cellular structure having cytoplasm but no nucleus is:
  • A
    Vessels.
  • B
    Xylem parenchyma.
  • ✓
    Sieve tubes.
  • D
    Tracheid.
Answer
Correct option: C.
Sieve tubes.
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MCQ 1561 Mark
Commercial cork is obtained from:
  • A
    Berberis$/$ Barberry.
  • B
    Salix$/$ Willow.
  • ✓
    Quercus$/$ Oak.
  • D
    Betula$/$ Birch.
Answer
Correct option: C.
Quercus$/$ Oak.
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MCQ 1571 Mark
Which one of the following cell types always divides by anticlinal cell division?
  • A
    Fusiform initial cells.
  • B
    Root cap.
  • C
    Protoderm.
  • ✓
    Phellogen.
Answer
Correct option: D.
Phellogen.
Protoderm cell always divides by anticlinal cell division.
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MCQ 1581 Mark
In a longitudinal section of root, starting from the tip upward, the four zones occur in the $3$ following order:
  • ✓
    Root cap, cell division, cell enlargement, cell maturation.
  • B
    Root cap, cell division, cell maturation, cell enlargement.
  • C
    Cell division, cell enlargement, cell maturation, root cap.
  • D
    Cell division, cell maturation, cell enlargement, root cap.
Answer
Correct option: A.
Root cap, cell division, cell enlargement, cell maturation.
Root cap, cell division, cell enlargement, cell maturation.
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MCQ 1591 Mark
$\text{A.T.S.}$ of a young dicot root can be distinguished from that of a young dicot stem by the presence of:
  • ✓
    Radial arrangement of xylem and phloem.
  • B
    Collateral arrangement of xylem and phloem.
  • C
    Interfascicular cambium.
  • D
    Intra fascicular cambium.
Answer
Correct option: A.
Radial arrangement of xylem and phloem.
Radial arrangement of xylem and phloem.
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MCQ 1601 Mark
A conjoint and open vascular bundle will be observed in the transverse section of:
  • A
    Monocot root.
  • B
    Monocot stem.
  • C
    Dicot root.
  • ✓
    Dicot stem.
Answer
Correct option: D.
Dicot stem.
Each vascular bundle is conjoint, open and with endarch protoxylem in the stem of dicot plant.
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MCQ 1611 Mark
Centripetal xylem is the characteristic of:
  • ✓
    Roots
  • B
    Stems
  • C
    Leaf
  • D
    Petiole
Answer
Correct option: A.
Roots
Xylem development in the roots is from the outer regions in the inward direction and so known as centripetal.
The growth of xylem in shoots is centrifugal direction which means towards the outside.
Phloem development is in the centripetal direction in roots and shoots.
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MCQ 1621 Mark
Phellogen and phellem respectively denote:
  • A
    Cork and cork cambium.
  • ✓
    Cork cambium and cork.
  • C
    Secondary cortex and cork.
  • D
    Cork and secondary cortex.
Answer
Correct option: B.
Cork cambium and cork.
Cortical Cells In the dicot stem the cortical cells gets differentiated to give rise to another meristematic tissue which is called cork cambium or phellogen. On the outerside it forms phellem $($cork$)$ and in the inner region it forms secondary cortical cells $($phelloderm$).$
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