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Saturday, 04 April 2026
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Biology Past Questions and Answers

Jamb Biology Questions

Question 21:
In the standard experiment to show that oxygen is given off during photosynthesis, sodium bicarbonate is used to
  • A Neutralize the acid in water
  • B Supply mineral salt to water plant
  • C Supply carbondioxide for photosynthesis
  • D Kill micro-organisms in water
View Answer & Explanation
Question 22:
One cubic centimeter of lymph is richer than an equal volume of blood in
  • A Erythrocytes
  • B Leucocytes
  • C Amino acid
  • D Glucose
View Answer & Explanation
Question 23:
The oxidative part of the respiratory process takes place in the
  • A Mitochondria
  • B Ribosomes
  • C Endoplasmic reticulum
  • D Golgi bodies
View Answer & Explanation
Question 24:
Fatigue of leg muscles may occur after riding many kilometers on a bicycle because of
  • A Insufficient glucose
  • B Excess carbon dioxide
  • C Excess protein
  • D Insufficient oxygen
View Answer & Explanation
Question 25:
The function of the loop of Henle is to
  • A Increase the flow of urine
  • B Concentrate amino acids in the kidney tissue
  • C Concentrate sodium chloride in the medulla of the kidney
  • D Increase the volume of urine
View Answer & Explanation