Question

Which fractions of the visible spectrum of solar radiations are primarily absorbed by carotenoids of higher plants?

• A. Blue and green
• B. Green and red
• C. Red and violet
• D. Violet and blue

Answer 1

The correct option is A Blue and green

Carotenoids are organic pigments that are found in the chloroplasts and chromoplasts of plants and some other photosynthetic organisms, including some bacteria and some fungi. Carotenoids absorb light in the blue-green and violet region and reflect the longer yellow, red, and orange wavelengths. These pigments also dispose excess energy out of the cell. Thus, option A is correct and other options are incorrect.