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JAMB Biology 2003 Question 16

Question 16

Photosynthesis and Plant Nutrition

The dark reaction of photosynthesis involves the

  1. A.reduction of carbon (IV) oxide to organic compounds.
  2. B.release of oxygen and the splitting of water.
  3. C.photolysis of water and the production of starch.
  4. D.splitting of water into hydrogen ions.
Show the answer and explanation

Answer: A (reduction of carbon (IV) oxide to organic compounds.)

Explanation

In the dark (light-independent) stage, hydrogen from the light stage reduces carbon(IV) oxide to sugars. Splitting water and releasing oxygen happen in the light stage.