MDCAT Biology MCQ #223

In a laboratory experiment, oxygen gas is seen bubbling from an aquatic plant. In which specific compartment is water being split to release this oxygen?

MDCAT Biology MCQ #223

  1. Question 1

    Q1. In a laboratory experiment, oxygen gas is seen bubbling from an aquatic plant. In which specific compartment is water being split to release this oxygen?

    • A) Stroma of chloroplast
    • B) Outer mitochondrial membrane
    • C) Thylakoid lumen/membrane
    • D) Cytoplasmic matrix

    Answer: Thylakoid lumen/membrane

    Explanation: Photolysis occurs on the inner surface of the thylakoid membrane. Option A is wrong as the stroma is where dark reactions occur.