Gaseous Exchange Questions and Answers
1. 1992 Q11 P1
The diagram below represents an organ from a bony fish. Study the diagram and answer the questions that follow
(a) Identify the organ and the parts labelled M, N, and P
(b) How the structures are labelled P adapted to their function?
2. 1994 Q14 P1
What are the characteristics do gills of a fish and the mouth cavity of a frog have in common that enables them to be efficient in gaseous exchange?
3. 1996 Q14 P1
(a) Describe the path taken by carbon dioxide released from the tissue of an insect to the atmosphere (3 marks)
(b) Name two structures used for gaseous exchange in plants (2 marks)
4. 1998 Q4 P1
Why are gills in fish highly vascularised?
5. 1999 Q5 P1
Suggest three reasons why green plants are included in a fish aquarium.
6. 1999 Q16 P1
a) Process of inhalation in mammals.
b) Mechanisms of opening and closing of stomata in plants.
7. 2000 Q11c P1
State two ways in which the leaf is suited to gaseous exchange
8. 2001 Q10 P1
Name three sites where gaseous exchange takes place in terrestrial plants.
9. 2002 Q9 P1
Name two gaseous exchange structures in higher plants.
10. 2003 Q13 P1
The diagram below shows gaseous exchange in tissues.
a) Name the gas that diffuses:
i) To the body cells
ii) From the body cells
b) Which compound dissociates to release the gas named in (a) (i) above?
c) i) What is tissue fluid?
ii) What is the importance of tissue fluid?