Question

Why is the underside of the leaf less green in colour?

• A. Due to the presence of high amount of accessory pigments.
• B. Due to high amount of chloroplasts in the cell.
• C. Due to less amount of chloroplast in the cell.
• D. Due to less amount of sunlight reaching the underside of leaf.

Answer 1

The correct option is C

Due to less amount of chloroplast in the cell.

There is an increased amount of chloroplast cells containing chlorophyll, in the upper surface of the leaf to trap more sunlight for the photosynthesis. Since the chlorophyll in the chloroplast imparts green colour to the epidermal cells, the upper surface appears to be greener than the lower surface.