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Question: Answered & Verified by Expert
Chl -b differs from chl -a by
BiologyPhotosynthesis in Higher PlantsJIPMERJIPMER 2019
Options:
  • A $-\mathrm{CH}_3$ group
  • B CHO group
  • C COOH group
  • D $\mathrm{CH}_2 \mathrm{OH}$ group
Solution:
2734 Upvotes Verified Answer
The correct answer is: CHO group
Chlorophyll-b structrally differs from chlorophyll-a by the presence of carbonyl (CHO) group at 3rd carbon in the prophyrin ring. chlorophyll-a possess methyl $\left(\mathrm{CH}_3\right)$ group in this place.

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