A researcher analyzes the molecular structure of the primary photosynthetic pigment in a plant cell and identifies a specific functional group on the porphyrin ring. Which group characterizes chlorophyll a?
Q1. A researcher analyzes the molecular structure of the primary photosynthetic pigment in a plant cell and identifies a specific functional group on the porphyrin ring. Which group characterizes chlorophyll a?
Answer: Methyl group
Explanation: Chlorophyll a contains a methyl group (-CH3), whereas chlorophyll b contains an aldehyde group (-CHO) at the same position.