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JAMB Biology 1999 Question 16

Question 16

Photosynthesis and Plant Nutrition

The dark reaction of photosynthesis involves

  1. A.fixation of carbon (IV) oxide to give a six-carbon sugar
  2. B.fixation of carbon (IV) oxide with the help of oxygen
  3. C.use of carbon (IV) oxide to produce glucose using ATP.
  4. D.fixation of carbon (IV) oxide on chlorophyll using hydrogen.
Show the answer and explanation

Answer: C (use of carbon (IV) oxide to produce glucose using ATP.)

Explanation

In the dark (light-independent) stage, carbon (IV) oxide is fixed and turned into glucose using the ATP and hydrogen made in the light stage.