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The main site of photosynthesis in a leaf is the

  • (a) epidermis Your answer
  • (b) xylem Your answer
  • (c) phloem Your answer
  • (d) mesophyll Correct
Your answer: Correct answer: (d)
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Explanation

Why (d) is correct

The mesophyll cells of the leaf have many chloroplasts and carry out most of the photosynthesis.

Why the other options are wrong

  • (a) · your answer Epidermal cells (except guard cells) usually lack chloroplasts.
  • (b) · your answer Xylem conducts water and minerals; it does not photosynthesise.
  • (c) · your answer Phloem conducts food; it is not the main site of photosynthesis.
NCERT point: Mesophyll chloroplasts usually align along the cell walls to get the best light.
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