LIFE SCIENCE

Detailed explanation-1: -Chlorophyll a absorbs violet and orange light the most. Chlorophyll b absorbs mostly blue and yellow light. They both also absorb light of other wavelengths with less intensity.

Detailed explanation-2: -Red and blue light is believed to have a higher quantum yield of CO2 assimilation. The blue and red parts of the spectrum are effective to satisfy the energy requirement of plants. Hence plants absorb these two colors more than any other color.

Detailed explanation-3: -Chlorophyll absorbs light most strongly in the blue portion of the electromagnetic spectrum, followed by the red portion. So, blue colour of light gives maximum absorption peak of chlorophyll a.

Detailed explanation-4: -Chlorophyll a directly participates in the photosynthesis process. It is a part of oxygenic photosynthesis. It absorbs energy from the red and blue light. It provides a green colour to the leaves by reflecting green-yellow light.