MDCAT Biology MCQ #396

During the Calvin cycle, several molecules are produced. Which molecule is considered the immediate starting point for the synthesis of glucose and other carbohydrates?

MDCAT Biology MCQ #396

  1. Question 1

    Q1. During the Calvin cycle, several molecules are produced. Which molecule is considered the immediate starting point for the synthesis of glucose and other carbohydrates?

    • A) Glyceraldehyde-3-phosphate
    • B) 3-Phosphoglycerate
    • C) Dihydroxyacetone phosphate
    • D) Ribulose bisphosphate

    Answer: Glyceraldehyde-3-phosphate

    Explanation: G3P is the primary carbohydrate product; 3-PGA is the first stable intermediate, but it must be reduced to G3P first.