Search SchoolNGR

Saturday, 03 October 2026
Register . Login

Biology Past Questions and Answers

Topic: The mechanism of gaseous exchange in plants

Jamb Biology Questions - The mechanism of gaseous exchange in plants

Question 11:
The aim of the experiment is to demonstrate
  • A That in mammal gaseous exchange takes place in the lungs
  • B The part played by the pleural cavity and diaphragm in respiration
  • C That a large amount of oxygen is absorbed by the lungs
  • D The presence of carbon (IV) oxide in the exhaled air
View Answer & Explanation
Question 12:
The experiment is used to demonstrate that
  • A Plants lose water through guttation
  • B Transpiration occurs through the leaves
  • C Water is necessary for photosynthesis
  • D Leaves are important to photosynthesis
View Answer & Explanation
Question 13:
Which of the following used diffusion as the principal method of gaseous exchange?
  • A Lizard
  • B Grasshopper
  • C Rat
  • D Earthworm
View Answer & Explanation
Question 14:
In the diagram, the experiment demonstrates
  • A Geotropism
  • B Thigmotropism
  • C Phototropism
  • D Hydrotropism
View Answer & Explanation
Question 15:
Stomata of some plants are sunken and protected by hairs. These are features of
  • A Mesophytes
  • B Epiphytes
  • C Hydrophytes
  • D Xerophytes
View Answer & Explanation