Regarding the guard cells:

1. walls away from the stomatal pores are thin and those towards the stomatal pores are thick
2. walls away from the stomatal pores are thick and those towards the stomatal pores are thin
3. chloroplasts are mostly absent
4. play no role in the regulation of opening and closing of stomata
Subtopic:  Dicot Leaf | Monocot Leaf |
 83%
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