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In the given transverse section of the leaf identify the layer of cells where maximum photosynthesis occurs.
- I, II
- II, III
- III, IV
- I, IV
Answer:
Here,
- Upper Epidermis
- Palisade Layer
- Spongy Cell
- Guard Cells
- The Upper Epidermis contains a waxy layer and a single layer of cells that covers the epidermal layer of cells. It aids in water conservation .
- The palisade layer contains chloroplasts and is the primary layer where photosynthesis takes place .
- The third layer is made of spongy cells . It is part of the mesophyll layer . It allows for the exchange of gases necessary for photosynthesis .
- Guard cells are special types of cells that facilitate the exchange of gases in leaves.
Therefore, the II and III layers play an important part in photosynthesis, and that is where the majority of the process takes place .
So, the correct answer is (b) II,III
