Name__________________________________________
Form 5
Biology Test 3
30 May 2023
1. Complete the sentences about respiration by writing the most appropriate word in each space.
Energy
oxygen
organisms
chemical
cells
(a) Aerobic respiration is a ......................reaction that takes place in ..............................of
living.......................... It uses ........................as part of the reaction to release..................... [5]
(b) Aerobic respiration releases carbon dioxide.
Describe a test for carbon dioxide and state the positive results.
Test...........................................................................................................................
positive results.......................................................................................................
[2]
(c) State which type of respiration releases the greatest amount of energy.
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[1]
(d) In the absence of sufficient oxygen,cells respire anaerobically.
Compare anaerobic respiration in the muscle cell of an animal with anaerobic respiration in a yeast cell.
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(e) Outline the role of the liver in helping a person recover from vigorous exercise.
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2. The following list contains structures found within the breathing system.
(a)
Structure
Bronchus
Nasal cavity
Order
Alveolus
1
Trachea
Bronchioles
Complete the table by numbering the structures to show the sequence in which air pass through them
during exhalation. The first structure has been numbered for you.
[2]
(b) Explain how smoking may reduce the gas exchange surface area through emphysema.
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