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In a leaf, the largest number of chloroplasts is usually found in the

(a) palisade and spongy mesophyll Correct
(b) xylem and phloem of the veins Your answer
(c) guard cells of the stomata Your answer
(d) upper and lower epidermis Your answer

Your answer: Correct answer: (a)

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Explanation

Why (a) is correct

The palisade and spongy mesophyll cells contain the most chloroplasts and are the main site of photosynthesis in the leaf.

Why the other options are wrong

(b) · your answer Xylem and phloem conduct water and food; they have few or no chloroplasts.
(c) · your answer Guard cells have chloroplasts, but only a few.
(d) · your answer Epidermal cells usually lack chloroplasts.

NCERT point: Mesophyll = the ground tissue of the leaf between the two epidermal layers.

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