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JAMB Biology 2010 Question 13

Question 13

Photosynthesis and Plant Nutrition

Use the diagram to answer: During photosynthesis, the arrow labelled II represents the

Diagram for this question
  1. A.absorption of energy from the sun
  2. B.release of carbon(IV) oxide
  3. C.release of oxygen as a by-product
  4. D.escape of mineral salts.
Show the answer and explanation

Answer: C (release of oxygen as a by-product)

Explanation

Arrow I shows carbon (IV) oxide entering the leaf, and arrow II shows a gas leaving it. During photosynthesis the gas given off is oxygen, a by-product.