Difference Between Chlorophyll A and B
The difference between Chlorophyll A and Chlorophyll B is given below:
Characteristics |
Chlorophyll A |
Chlorophyll B |
Definition |
Primary photosynthetic pigment i.e. the reaction center. |
Accessory photosynthetic pigment. |
Absorption spectrum |
Absorbs violet-blue and orange-red lights which range from 430 nm to 660 nm. |
It also absorbs violet-blue and orange-red light which ranges from 450 nm to 650 nm. |
Occurrence |
Found in all green plants, algae, bacteria, cyanobacteria, etc. |
Found in only green plants, and algae. |
Reflection |
It produces a bluish-green color. |
It produces a yellowish-green color. |
Rate of absorption |
Its rate of absorption of light is strong. |
Its rate of absorption is weak. |
Side group |
In its porphyrin ring, it has a -CH3 side group. |
It has a -CHO side group in its porphyrin ring. |
Molecular weight |
Its molecular weight is around 839.51 g/mol. |
Its molecular weight is around 907.49 g/mol. |
Chemical formula |
Its chemical formula is C55H72O5N4Mg2+. |
Its chemical formula is C55H70N4O6Mg2+. |
Structural difference |
It has a methyl group. |
It has a formyl group. |
Solubility in polar solvents |
It has low solubility in polar solvents. |
It has a high solubility in polar solvents. |
Difference Between Chlorophyll A and Chlorophyll B
Difference Between Chlorophyll A and Chlorophyll B: Chlorophyll is the pigment that helps green plants and certain algae produce energy from the sun’s light energy, water, and carbon dioxide. During this process, oxygen is released as a by-product. This pigment chlorophyll imparts the greenish color of green plants and other photosynthetic organisms.
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