MDCAT Biology MCQ #154

The chlorophyll molecule is composed of two main parts. Which specific part is described as the flat, square, light-absorbing hydrophilic head?

MDCAT Biology MCQ #154

  1. Question 1

    Q1. The chlorophyll molecule is composed of two main parts. Which specific part is described as the flat, square, light-absorbing hydrophilic head?

    • A) Phytol tail
    • B) Porphyrin ring
    • C) Magnesium core
    • D) Hydrocarbon chain

    Answer: Porphyrin ring

    Explanation: The porphyrin ring is the light-absorbing head; the phytol tail is a long hydrocarbon chain that anchors the molecule in the membrane.