MDCAT Biology MCQ #422

Under conditions of high light intensity and low CO2 concentration, Rubisco exhibits an anomalous activity by functioning as a/an:

MDCAT Biology MCQ #422

  1. Question 1

    Q1. Under conditions of high light intensity and low CO2 concentration, Rubisco exhibits an anomalous activity by functioning as a/an:

    • A) Oxygenase
    • B) Carboxylase
    • C) Dehydrogenase
    • D) Reductase

    Answer: Oxygenase

    Explanation: Rubisco acts as an oxygenase when CO2 levels are low. Carboxylase is tempting as it is the enzyme's standard productive role.