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Question: Answered & Verified by Expert
Molecular formula of chlorophyll-b is
BiologyPhotosynthesis in Higher PlantsJIPMERJIPMER 2018
Options:
  • A $\mathrm{C}_{55} \mathrm{H}_{70} \mathrm{O}_6 \mathrm{~N}_4 \mathrm{Mg}$
  • B $\mathrm{C}_{55} \mathrm{H}_{72} \mathrm{O}_5 \mathrm{~N}_4 \mathrm{Mg}$
  • C $\mathrm{C}_{55} \mathrm{H}_{70} \mathrm{O}_5 \mathrm{~N}_4 \mathrm{Mg}$
  • D $\mathrm{C}_{54} \mathrm{H}_{70} \mathrm{O}_6 \mathrm{~N}_4 \mathrm{Mg}$
Solution:
2582 Upvotes Verified Answer
The correct answer is: $\mathrm{C}_{55} \mathrm{H}_{70} \mathrm{O}_6 \mathrm{~N}_4 \mathrm{Mg}$
The molecular formula of chlorophyll-b is $\mathrm{C}_{55} \mathrm{H}_{70} \mathrm{O}_6 \mathrm{~N}_4 \mathrm{Mg}$. It helps in photosynthesis by absorbing light energy. It is more soluble in polar solvents than chlorophyll-a because of its carbonyl group. It is of yellow colour and primarily absorbs blue light.

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