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Kranz anatomy refers to

(a) stomata sunken in pits on the lower epidermis Your answer
(b) a ring of large bundle sheath cells around each vein Correct
(c) large vacuoles in the palisade mesophyll cells Your answer
(d) a peripheral reticulum inside the chloroplasts Your answer

Your answer: Correct answer: (b)

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Explanation

Why (b) is correct

Kranz anatomy means a ring (wreath) of large bundle sheath cells, rich in chloroplasts, around each vascular bundle in the leaves of C₄ plants.

Why the other options are wrong

(a) · your answer Sunken stomata are an adaptation of dry-habitat plants, not Kranz anatomy.
(c) · your answer Large vacuoles in the palisade are not what Kranz anatomy refers to.
(d) · your answer A peripheral reticulum in the chloroplasts is not mentioned in NCERT, and it is not the meaning of Kranz anatomy.

NCERT point: "Kranz" is German for wreath.

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