. On a bright sunny day, during noon to get the optimum quantity of incident light, the chloroplasts in the mesophyll cells of the leaves align themselv


A. with their flat surfaces parallel to the mesophyll cell walls.

B. perpendicular to the mesophyll cell walls.

C. evenly distributed in the cytoplasm.

\D. hiding behind the nucleus.

 

Best Answer

(b)

The mesophyll cells in the leaves have a large number of chloroplasts. The chloroplasts align themselves along the walls of the mesophyll cells, such that they get the optimum quantity of the incident light. Alignment may be parallel or perpendicular as per the situation. On a bright sunny day, to reduce the exposure to more amount of light chloroplasts align themselves in perpendicular position.

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