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JAMB Biology 2013 Question 16

Question 16

Photosynthesis and Plant Nutrition

During the manufacture of food by plants, which of the following organisms use energy from the sun?

  1. A.Sulfur bacteria.
  2. B.Nitrosomonas sp.
  3. C.Nitrobacter sp.
  4. D.Anabaena.
Show the answer and explanation

Answer: D (Anabaena.)

Explanation

Anabaena is a blue-green alga with chlorophyll, so it makes food using light energy. Nitrosomonas, Nitrobacter and sulfur bacteria get their energy from chemical reactions (chemosynthesis).