What is function of chlorophyll in a leaf?

Chlorophyll is

Chlorophyll is

Chlorophyll a has

Chlorophyll b is

What is a leaf?

Give a brief description of the process of synthesis of food in green plants. What is chlorophyll ? What is the role of chlorophyll in photosynthesis ?

Main function of leaf is

What are the approximate peaks of light absorption of chlorophyll 'a'?