HARD
AS and A Level
IMPORTANT
Earn 100
The electron microscope was needed to confirm that each alveolus is completely surrounnded by epithelial cells. Explain why?
Important Questions on Gas Exchange
HARD
AS and A Level
IMPORTANT
Draw the low power plan diagram of trachea.
HARD
AS and A Level
IMPORTANT
Draw the low power plan diagram of bronchus.
HARD
AS and A Level
IMPORTANT
The following structures are found in the walls of the gas exchange system.
1 Cilia
2 Elastic fibres
3 Smooth muscle cells
4 Goblet cells
5 Squamous epithelial cells.
Which would be found in the lining of an alveolus.
HARD
AS and A Level
IMPORTANT
Cartilage is found in which structure?
HARD
AS and A Level
IMPORTANT
Which of the following is not a role of elastic fibres in the gas exchange system?
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AS and A Level
IMPORTANT
Which of the following best describes the process of gas exchange in the lungs.
HARD
AS and A Level
IMPORTANT
The given diagram shows the alveoli:
Name the cell A, B and C.
HARD
AS and A Level
IMPORTANT
The given diagram shows the alveoli:
Name the fluid at D.
