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BIOLOGY M.C.Q (1 Marks)

PART - 2 - Unit IV : CH - 11 Photosynthesis in Higher Plants · Gujarat Board (GSEB) STD 11 Science (GSEB - English Medium). 43 questions.

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M.C.Q (1 Marks)

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43 questions · auto-graded multiple-choice test.

MCQ 11 Mark
A proton gradient is created across the thylakoid membrane :
  • A
    due to the decrease in the number of protons in stroma
  • B
    due to aggregation of protons in the lumen
  • C
    due to decrease in pH in the lumen
  • ✓
    all of the above
Answer
Correct option: D.
all of the above
D
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MCQ 21 Mark
The unit of photosynthesis is:
  • A
    glyoxysome
  • B
    spherosomes
  • C
    microsome
  • ✓
    quantasome
Answer
Correct option: D.
quantasome
D
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MCQ 31 Mark
The first step in the dark reaction of photosynthesis is:
  • A
    Formation of ATP
  • B
    Ionization of water
  • ✓
    Conduction of CO2 with pentose sugar
  • D
    Excitation of chlorophyll's electron by photo of light
Answer
Correct option: C.
Conduction of CO2 with pentose sugar
C
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MCQ 41 Mark
C4 plants are called:
  • ✓
    Hatch and Slack type
  • B
    Calvin type
  • C
    Calvin and Wasam
  • D
    Emerson type
Answer
Correct option: A.
Hatch and Slack type
A
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MCQ 51 Mark
Dimorphism of chloroplast is the specialty of:
  • ✓
    C1 plants
  • B
    C3 plants
  • C
    CAM plants
  • D
    all of these
Answer
Correct option: A.
C1 plants
A
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MCQ 61 Mark
Which part of ATP synthase forms a transmembrane channel that facilitates the diffusion of protons across the membrane, what is it called?
  • A
    F1
  • B
    F2
  • C
    F3
  • ✓
    F0
Answer
Correct option: D.
F0
D
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MCQ 71 Mark
Blackman's rule of limiting factors applies:
  • A
    on growth
  • B
    on respiration
  • C
    on transpiration
  • ✓
    on photosynthesis
Answer
Correct option: D.
on photosynthesis
D
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MCQ 81 Mark
Where is the Calvin cycle found?
  • A
    Chloroplast
  • B
    Cytoplasm
  • C
    Mitochondria
  • ✓
    Glyoxysome
Answer
Correct option: D.
Glyoxysome
D
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MCQ 91 Mark
Splitting of water in photosynthesis is called:
  • A
    Non-light reaction
  • B
    Electron transport
  • ✓
    Photolysis
  • D
    Phototropism
Answer
Correct option: C.
Photolysis
C
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MCQ 111 Mark
Which of the following is required for chemiosmosis?
  • A
    A membrane and a proton pump
  • B
    A proton gradient
  • C
    ATP synthase
  • ✓
    All of the above
Answer
Correct option: D.
All of the above
D
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MCQ 131 Mark
What is splitting of water related to?
  • A
    From PS-I
  • ✓
    From PS-II
  • C
    From PS-III
  • D
    From PS-IV
Answer
Correct option: B.
From PS-II
B
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MCQ 141 Mark
Transfer of electrons in Z-scheme involves:
  • A
    Bundle of sheath cells
  • B
    PS-I
  • C
    PS-II
  • ✓
    Both (b) and (c)
Answer
Correct option: D.
Both (b) and (c)
D
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MCQ 151 Mark
C4 plants are found:
  • A
    only in aquatic plants
  • B
    only in monocotyledons
  • C
    only in dicotyledons
  • ✓
    both (b) and (c)
Answer
Correct option: D.
both (b) and (c)
D
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MCQ 161 Mark
Accessory pigment molecules absorb light energy and give it to the reaction centre. What are these molecules called?
  • A
    Quantasome
  • B
    Rubisco
  • ✓
    Antenna
  • D
    Kranz
Answer
Correct option: C.
Antenna
C
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MCQ 171 Mark
Which of the following is not related to C3 path?
  • A
    Only Calvin cycle occurs in it.
  • B
    It contains CO2 acceptors RuDP containing 5 carbons.
  • ✓
    Only PSI is present.
  • D
    Optimum temperature is $10-25^{\circ} C$.
Answer
Correct option: C.
Only PSI is present.
C
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MCQ 201 Mark
In which of the following areas are the plants of C4 pathway found?
  • ✓
    In dry tropical region
  • B
    In the moist region
  • C
    In aquatic region
  • D
    In snowy region
Answer
Correct option: A.
In dry tropical region
A
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MCQ 211 Mark
Which of the following goes into the Calvin cycle?
  • ✓
    12 NADPH
  • B
    18 ADP
  • C
    One glucose
  • D
    None of these
Answer
Correct option: A.
12 NADPH
A
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MCQ 221 Mark
Which light of 680 nm does chlorophyll 'A' present in the reaction centre in photosystem-II absorb?
  • A
    Green light
  • ✓
    Red light
  • C
    Blue light
  • D
    Violet light
Answer
Correct option: B.
Red light
B
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MCQ 231 Mark
At which wavelength does chlorophyll 'A' absorb in the reaction centre PS-1?
  • ✓
    700 nm
  • B
    680 nm
  • C
    670 nm
  • D
    710 nm
Answer
Correct option: A.
700 nm
A
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MCQ 241 Mark
Protects Chlorophyll 'A' from photooxidation:
  • A
    Chlorophyll B
  • B
    Carotene
  • C
    Xanthophyll
  • ✓
    All of these
Answer
Correct option: D.
All of these
D
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MCQ 251 Mark
Which of the following is an accessory pigment?
  • A
    Chlorophyll B
  • B
    Xanthophyll
  • C
    Carotene
  • ✓
    All of these
Answer
Correct option: D.
All of these
D
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MCQ 261 Mark
In which region of the spectrum does maximum photosynthesis take place?
  • ✓
    White and red region
  • B
    Purple and red region
  • C
    Blue and green region
  • D
    Purple and blue region
Answer
Correct option: A.
White and red region
A
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MCQ 271 Mark
Where does the light reaction of photosynthesis take place?
  • A
    In stroma
  • B
    In endoplasmic reticulum
  • ✓
    In thylakoid (grana)
  • D
    In the inner membrane of chloroplast
Answer
Correct option: C.
In thylakoid (grana)
C
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MCQ 281 Mark
Calvin and his co-workers discovered the entire pathway and explained that this pathway operates in a cyclic manner, in which what is produced again?
  • ✓
    RuBP
  • B
    RuDP
  • C
    LHC
  • D
    PS
Answer
Correct option: A.
RuBP
A
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MCQ 291 Mark
How much ATP is required for phosphorylation for RuBP formation in the regeneration phase?
  • A
    2 ATP
  • ✓
    1 ATP
  • C
    3 ATP
  • D
    4 ATP
Answer
Correct option: B.
1 ATP
B
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MCQ 311 Mark
Leaves with Kranz body are:
  • A
    in C3 plants
  • ✓
    in C4 plants
  • C
    in C2 plants
  • D
    in hydrophytic plants
Answer
Correct option: B.
in C4 plants
B
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MCQ 321 Mark
Which lamellae membranes do not contain PS-II and NADP reductase enzymes?
  • ✓
    Stroma lamellae
  • B
    Granum lamellae
  • C
    Chloroplast membrane
  • D
    Cell membrane
Answer
Correct option: A.
Stroma lamellae
A
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MCQ 331 Mark
The main pigment of photosynthesis is:
  • ✓
    Chlorophyll 'A'
  • B
    Chlorophyll 'B'
  • C
    Carotenoid
  • D
    Xanthophyll
Answer
Correct option: A.
Chlorophyll 'A'
A
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MCQ 341 Mark
The bright or blue green pigment is:
  • A
    Chlorophyll 'B'
  • ✓
    Chlorophyll 'A'
  • C
    Carotenoid
  • D
    Xanthophyll
Answer
Correct option: B.
Chlorophyll 'A'
B
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MCQ 351 Mark
The first stable product in C4 plants is ________ and it contains _________ carbon molecules.
  • A
    PGA, 3 carbon
  • B
    PGAL, 3 carbon
  • ✓
    OOA, 4 carbon
  • D
    OOA, 3 carbon
Answer
Correct option: C.
OOA, 4 carbon
C
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MCQ 381 Mark
The process of converting light energy into chemical energy is called:
  • A
    Respiration
  • ✓
    Photosynthesis
  • C
    Transpiration
  • D
    None of these
Answer
Correct option: B.
Photosynthesis
B
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MCQ 401 Mark
Which scientist's experiment worked as a milestone in explaining photosynthesis?
  • A
    Twig
  • B
    Priestley
  • ✓
    Cornelis van Niel
  • D
    T.W. Engelmann
Answer
Correct option: C.
Cornelis van Niel
C
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MCQ 411 Mark
When a plant grows, glucose is formed. This statement is made by which scientist?
  • ✓
    Hill
  • B
    Julius von Sachs
  • C
    Julius Eisenhausen
  • D
    Julius Engelmann
Answer
Correct option: A.
Hill
A
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MCQ 421 Mark
Who discovered the importance of light and chlorophyll in photosynthesis?
  • ✓
    John Eisenhaus
  • B
    Priestley
  • C
    Engelmann
  • D
    Blackman
Answer
Correct option: A.
John Eisenhaus
A
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MCQ 431 Mark
__________ gave the principle of limiting factor for photosynthesis.
  • ✓
    Blackman
  • B
    Hill
  • C
    Reuven
  • D
    Kamen
Answer
Correct option: A.
Blackman
A
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