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Differentiate between Chlorophyll ‘a’ and Chlorophyll ‘b’ :
Answer

Chlorophyll ‘a’

Chlorophyll ’b’

1. Molecular formula is C55 H72 O5 N4 Mg.

Molecular formula is C55 H70 O6 N4 Mg.

2. It is bluish green in colour.

It is olive green in colour.

3. It is universal and found in lower and higher plants except bacteria.

3. It is found only in higher plants.

4. It has methyl group attached to the third carbon of porphyrin head.

4. It has –CHO group attached to the third carbon atom of porphyrin head.