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Friday, 14 August 2026
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Biology Past Questions and Answers

Topic: Photosynthesis

Jamb Biology Questions - Photosynthesis

Question 11:
If the blood is too concentrated, more water is absorbed from
  • A 5
  • B 4
  • C 3
  • D 1
View Answer & Explanation
Question 12:
2H2 → 2H2 + O2(g). The equation above represents a part of the light stage of photosynthesis. Which of the following must be presents for this reaction to occur?
  • A Enzyme and light energy
  • B Carbondioxide and light energy
  • C Light energy and cholorphyll
  • D Chlorophyll and enzyme
View Answer & Explanation
Question 13:
The depth of illumination in a water body can be measured with a
  • A Photometer
  • B Secchi disc
  • C Hydrometer
  • D Anemometer
View Answer & Explanation
Question 14:
Given the equation:
6CO2 + 6H2O → C6H12O6 + 6O2 {Under sunlight & Chlorophyll)
The process represented by the above equation is
  • A Proteinsynthesis
  • B Respiration
  • C Photosynthesis
  • D Transpiration
  • E Translocation
View Answer & Explanation
Question 15:
Given the equation:
6CO2 + 6H2O → C6H12O6 + 6O2 {Under sunlight & Chlorophyll)
The oxygen given off during the above process is derived from
  • A Sunlight
  • B Chlorophyll
  • C Carbon dioxide
  • D Atmosphere
  • E Water
View Answer & Explanation