In leaves, most photosynthesis occurs in the middle cell layer called the:
ACuticle
BMesophyll
CEpidermis
DStomata
Answer & Solution
Correct answer: B. Mesophyll
1. Leaves have several cell layers.
2. The mesophyll holds most chloroplasts.
3. Gas exchange happens through stomata.
_Source: OpenStax Biology 2e, Chapter 8, Photosynthesis (CC BY 4.0)._
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