Identify the correct sequence of pigments bas | vedclass

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Question

(A) The molecular formulas and approximate molecular weights of these photosynthetic pigments are as follows:$1$. Chlorophyll $a$ $(C_{55}H_{72}O_5N_4

Vedclass · Accepted Answer

Chlorophyll $b$  >  Chlorophyll $a$  >  Xanthophylls  >  Carotenoids

Vedclass · Answer

(A) The molecular formulas and approximate molecular weights of these photosynthetic pigments are as follows:$1$. Chlorophyll $a$ $(C_{55}H_{72}O_5N_4Mg)$: Molecular weight $\approx 893.5 	ext{ g/mol}$.$2$. Chlorophyll $b$ $(C_{55}H_{70}O_6N_4Mg)$: Molecular weight $\approx 907.5 	ext{ g/mol}$.$3$. Xanthophylls (e.g., Lutein, $C_{40}H_{56}O_2$): Molecular weight $\approx 568.8 	ext{ g/mol}$.$4$. Carotenoids (e.g., $\beta$-carotene, $C_{40}H_{56}$): Molecular weight $\approx 536.8 	ext{ g/mol}$.Comparing these values, the order from higher to lower molecular weight is: Chlorophyll $b$ $(907.5)$  >  Chlorophyll $a$ $(893.5)$  >  Xanthophylls $(568.8)$  >  Carotenoids $(536.8)$.Thus, the correct sequence is Chlorophyll $b$  >  Chlorophyll $a$  >  Xanthophylls  >  Carotenoids.

Identify the correct sequence of pigments based on their molecular weight (from higher to lower).

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