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The content of chlorophyll a is two to three times that of chlorophyll b in most...

The content of chlorophyll a is two to three times that of chlorophyll b in most green plants. Give some possible reasons why some results might differ from these expectations?

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Ans. Both chlorophyll a and chlorophyll b absorb light. Chlorophyll a is responsible for the converting light energy to chemical energy.  All the photosynthetic plants, algae and cyanobacteria contain chlorophyll a, whereas only plants and green algae contain chlorophyll b.

When less light is available plants produce more chlorophyll b than chlorophyll a. This is because chlorophyll a molecules capture a limited wavelength so, more chlorophyll b molecules are needed to capture of a wider range of light.

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