MDCAT Biology MCQ #495

Rubisco is the most abundant protein in the world. Where exactly is it localized within the chloroplast to facilitate the Calvin cycle?

MDCAT Biology MCQ #495

  1. Question 1

    Q1. Rubisco is the most abundant protein in the world. Where exactly is it localized within the chloroplast to facilitate the Calvin cycle?

    • A) Stroma-facing surface of thylakoids
    • B) Lumen-facing surface of thylakoids
    • C) Embedded within the lipid bilayer
    • D) Outer chloroplast membrane

    Answer: Stroma-facing surface of thylakoids

    Explanation: Rubisco is found on the stromal side of thylakoids; it is not an integral membrane protein like the photosystems.