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Biology MCQ

Absorption by Roots · ICSE STD 10 (ICSE - English Medium). 16 questions.

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16 questions · timed · auto-graded

MCQ 11 Mark
Process of ascent of sap in plants occurs ___________
  • A
    by cortex
  • ✓
    by xylem
  • C
    by phloem
  • D
    by cambium
Answer
Correct option: B.
by xylem
Process of ascent of sap in plants occurs by xylem
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MCQ 21 Mark
Wilting of plants occurs when ____________
  • A
    phloem is blocked.
  • ✓
    xylem is blocked.
  • C
    a few old roots are removed.
  • D
    both xylem and phloem are blocked.
Answer
Correct option: B.
xylem is blocked.
Wilting of plants occurs when xylem is blocked
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MCQ 31 Mark
Exudation or bleeding is associated with ___________
  • A
    capillarity
  • B
    imbibition
  • ✓
    hydrostatic pressure in the root
  • D
    pulsation in the innermost layer of cortex
Answer
Correct option: C.
hydrostatic pressure in the root
Exudation or bleeding is associated with hydrostatic pressure in the root
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MCQ 41 Mark
The water is translocated upwards from the roots through _____________
  • ✓
    xylem
  • B
    phloem
  • C
    pith
  • D
    endodermis
Answer
Correct option: A.
xylem
The water is translocated upwards from the roots through xylem
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MCQ 51 Mark
In ascent of sap water reaches upwards ____________
  • A
    In the form of a solid column.
  • B
    in the form of a fragile column.
  • C
    to some places in the form of solid and to some places in liquid form.
  • ✓
    none of the above.
Answer
Correct option: D.
none of the above.
In ascent of sap water reaches upwards none of the above
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MCQ 61 Mark
Absorption of water from soil takes place by __________
  • A
    root cap region
  • ✓
    root hairs
  • C
    elongation zone
  • D
    maturation zone
Answer
Correct option: B.
root hairs
Absorption of water from soil takes place by root hairs
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MCQ 71 Mark
Which tissue makes passage for ascent of sap?
  • A
    Cortex
  • B
    Endodermis
  • C
    Phloem
  • ✓
    Xylem
Answer
Correct option: D.
Xylem
Xylem
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MCQ 81 Mark
Meaning of ascent of sap is ____________
  • A
    absorption of water from soil.
  • B
    alteration of water against gravitational force.
  • ✓
    reaching of water upwards against gravitational force.
  • D
    origin of cohesive force in water.
Answer
Correct option: C.
reaching of water upwards against gravitational force.
Meaning of ascent of sap is reaching of water upwards against gravitational force
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MCQ 91 Mark
Swelling of wooden doors during rains is caused by ___________
  • A
    endosmosis
  • ✓
    imbibition
  • C
    capillarity
  • D
    osmosis
Answer
Correct option: B.
imbibition
Swelling of wooden doors during rains is caused by imbibition
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MCQ 101 Mark
Which one is semi-permeable?
  • ✓
    Plasmalemma
  • B
    Cell wall
  • C
    Endoplasmic reticulum
  • D
    Golgi body
Answer
Correct option: A.
Plasmalemma
Plasmalemma
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MCQ 111 Mark
If a marine plant is transferred to fresh water, it bursts due to ___________
  • A
    exosmosis
  • ✓
    endosmosis
  • C
    plasmolysis
  • D
    diffusion
Answer
Correct option: B.
endosmosis
If a marine plant is transferred to fresh water, it bursts due to endosmosis
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MCQ 121 Mark
Cell turgidity is caused by _______________
  • ✓
    endosmosis
  • B
    exosmosis
  • C
    plasmolysis
  • D
    diffusion
Answer
Correct option: A.
endosmosis
Cell turgidity is caused by endosmosis
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MCQ 131 Mark
Grapes when placed in a strong sugar solution shrink because of __________
  • A
    diffusion
  • ✓
    plasmolysis
  • C
    exosmosis
  • D
    endosmosis
Answer
Correct option: B.
plasmolysis
Grapes when placed in a strong sugar solution shrink because of plasmolysis
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MCQ 141 Mark
Plasmolysis will occur when the cell is placed in a __________
  • A
    hypotonic solution
  • B
    isotonic solution
  • ✓
    hypertonic solution
  • D
    acidic solution
Answer
Correct option: C.
hypertonic solution
Plasmolysis will occur when the cell is placed in a hypertonic solution
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MCQ 151 Mark
An example of a selective permeable membrane is $……$
  • A
    cell wall
  • B
    mitochondrial membrane
  • C
    chloroplast membrane
  • ✓
    plasmalemma
Answer
Correct option: D.
plasmalemma
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MCQ 161 Mark
Osmosis involves diffusion of $……$
  • A
    suspended particles from lower concentration to higher concentration.
  • B
    suspended particles from higher concentration to lower concentration.
  • ✓
    Molecules or ions from the more concentrated solution to the less concentrated solution.
  • D
    water from the less concentrated solution to the more concentrated solution.
Answer
Correct option: C.
Molecules or ions from the more concentrated solution to the less concentrated solution.
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