MDCAT Biology MCQ #168

During the dark reactions of photosynthesis in a spinach leaf, what is the immediate three-carbon carbohydrate produced that can form glucose?

MDCAT Biology MCQ #168

  1. Question 1

    Q1. During the dark reactions of photosynthesis in a spinach leaf, what is the immediate three-carbon carbohydrate produced that can form glucose?

    • A) Glyceraldehyde-3-phosphate
    • B) Glucose
    • C) Ribulose bisphosphate
    • D) Oxaloacetate

    Answer: Glyceraldehyde-3-phosphate

    Explanation: G3P is the primary carbohydrate product of the Calvin cycle; Glucose is synthesized later from G3P molecules in the plant's cytoplasm.