Biology · Plant Secondary Metabolism
The following statements are made regarding phenolic biosynthesis in plants. A. The lignans and flavonoids have abundant methylated carboxyl groups, compared to methylated hydroxyl groups. B. Cells producing lignans and flavonoids have a very high demand for S-adenosylmethionine. C. The majority of methylation reactions involved in the formation of phenolics are catalyzed by O-methyltransferases. D. The catechol-O-methyltransferase (COMT) has strict substrate specificity. Which one of the following options represents the combination of all correct statements?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1A and D
- 2C and D
- 3B and C✓
- 4A and B
Correct answer
B and C
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