Search SchoolNGR

Saturday, 04 April 2026
Register . Login

Biology Past Questions and Answers

Jamb Biology Questions

Question 21:
Which of the following can bring about the greatest increase in the rate of transpiration?
  • A Increased humidity
  • B Reduced temperature
  • C Reduced wind speed
  • D Reduced humidity
View Answer & Explanation
Question 22:
After 30 minutes, the level of sugar solution in the above figure will
  • A Rise in x only
  • B Rise in Y only
  • C Be the same in X and Y
  • D Fall in Y
View Answer & Explanation
Question 23:
The process by which water moves from X to Y through the semi-permeable membrane is called
  • A Diffusion
  • B Osmosis
  • C Active diffusion
  • D Osmoregulation
View Answer & Explanation
Question 24:
Fibrinogen and prothrombin play important roles in the
  • A Deamination of proteins
  • B Clotting of blood
  • C Detoxication of substance
  • D Storage of vitamins
View Answer & Explanation
Question 25:
Deoxygenation blood flows into the right and left lungs through the
  • A Pulmonary vein
  • B Vena cava
  • C Pulmonary artery
  • D Subclavian vein
View Answer & Explanation