JAMB Biology 2013 Objective — Question 16
Question 16 of 50 from the Joint Admissions and Matriculation Board (JAMB) Biology 2013 Objective paper, with the correct answer and a full explanation.
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During the manufacture of food by plants, which of the following organisms use energy from the sun?
- A. Nitrosomonas sp
- B. Nitrobacter sp
- C. AnabaenaCorrect
- D. Sulfur bacteria
Explanation
Photosynthetic organisms make use of sunlight energy while chemosynthetic organisms do not. Chemosynthetic organisms produce energy from chemical reactions — sulphur bacteria, Nitrosomonas spp. and Nitrobacter spp. are chemosynthetic. Anabaena is a blue-green algae which uses sunlight energy since it is a photoautotroph.
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