NEET BIOLOGY

Detailed explanation-1: -Typically leaves are broad, flat and thin (dorsiventrally flattened), thereby maximising the surface area directly exposed to light and enabling the light to penetrate the tissues and reach the chloroplasts, thus promoting photosynthesis.

Detailed explanation-2: -Leaves are ideal for photosynthesis because they are usually broad and flat, giving plenty of surface area for light to be absorbed. They are also thin, which means diffusion of gases such as carbon dioxide can happen quickly.

Detailed explanation-3: -The leaves are broad to maximize surface area for light harvest and they are thin since light cannot penetrate too deeply into the leaf (the amount of light decreases exponentially with distance).

Detailed explanation-4: -The broad, green part of the leaf is called lamina.

Detailed explanation-5: -Green leaves are thin and broad to increase the surface area for absorption of light and carbon dioxide. Green leaves are thin and broad to increase the transpiration rate.