MDCAT Biology MCQ #195

What specific chemical group is attached to the porphyrin ring of Chlorophyll a that distinguishes it from Chlorophyll b?

MDCAT Biology MCQ #195

  1. Question 1

    Q1. What specific chemical group is attached to the porphyrin ring of Chlorophyll a that distinguishes it from Chlorophyll b?

    • A) Methyl group
    • B) Aldehyde group
    • C) Hydroxyl group
    • D) Carboxyl group

    Answer: Methyl group

    Explanation: Chlorophyll a has a methyl (-CH3) group, while chlorophyll b has an aldehyde (-CHO) group at the same position.