Biology · Bioenergetics
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In chlorophyll 'a', the group attached to prophyrine ring is
- A
hydroxyl group
- B
methyl group
- C
carboxyl group
- D
aldehyde group
Chlorophyll 'a' is an essential pigment in photosynthesis, and its structure includes a porphyrin ring. Attached to this porphyrin ring is a methyl group (CH3). This is a distinguishing feature of chlorophyll 'a' as opposed to chlorophyll 'b', which has a formyl group instead. The hydroxyl, carboxyl, and aldehyde groups are not part of chlorophyll 'a's core structure.
The hydroxyl group is present in some organic molecules but is not the group attached to the porphyrin ring in chlorophyll 'a'.
Correct! Chlorophyll 'a' has a methyl group attached to the porphyrin ring.
The carboxyl group is a functional group found in carboxylic acids, not in chlorophyll 'a'.
The aldehyde group is characteristic of aldehydes, but not of chlorophyll 'a'.
Tagged under Biology · Bioenergetics · 2011