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Consider the following statements about C4 plants.
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Consider the following statements about C4 plants.
(A) They have Kranz anatomy.
(B) Their bundle sheath cells have intercellular spaces for gas exchange.
(C) They use more ATP per glucose than C3 plants.
(D) Their primary CO2 acceptor is a 5-carbon compound.
How many of these statements are correct?
Your answer:
Correct answer: (b)
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Explanation
Why (b) is correct
A (Kranz anatomy) and C (more ATP per glucose) are correct. B is wrong: bundle sheath cells have no intercellular spaces. D is wrong: the acceptor (PEP) is a 3-carbon compound. So two are correct.
Why the other options are wrong
- (a) · your answer Two statements are correct.
- (c) · your answer Only two are correct.
- (d) · your answer B and D are wrong.
NCERT point: C4 plants have Kranz anatomy; their bundle sheath cells have no intercellular spaces and many chloroplasts.
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