MDCAT Biology MCQ #235

For every three molecules of CO2 that enter the Calvin cycle, how many molecules of Glyceraldehyde-3-phosphate (G3P) are considered the net output?

MDCAT Biology MCQ #235

  1. Question 1

    Q1. For every three molecules of CO2 that enter the Calvin cycle, how many molecules of Glyceraldehyde-3-phosphate (G3P) are considered the net output?

    • A) 3 G3P
    • B) 5 G3P
    • C) 2 G3P
    • D) 1 G3P

    Answer: 1 G3P

    Explanation: Three CO2 molecules produce six G3P, but only one is the net gain. Option B is incorrect as five G3P must regenerate RuBP.