Question

Why different plants show maximum rate of photosynthesis for different colours?

Answer 1

Answer:

The rate of photosynthesis is affected by the different wavelengths of light a plant is exposed to because different pigments in chloroplasts absorb different wavelengths for use in photosynthesis.

Green light is the least effective for plants because they are themselves green due to the pigment Chlorophyll. Different color light helps plants perform different functions. Blue light helps encourage vegetative leaf growth. Red light, when combined with blue, allows plants to flower.

Answer 2

Answer:

Blue light is absorbed not only by chlorophyll, but also by carotenoids, and some carotenoids are not in the chloroplasts; further, carotenes and xanthophylls make up the carotenoids.