Cambridge International A Level · Marine Science (9693)

Respiration: Practice Questions

5 multiple-choice questions marked as you go, and 3 written questions with worked solutions. All on Respiration.

8 questions14 marksFree, no account

Question 1

1 mark

Where specifically does anaerobic respiration take place within the cells of a marine teleost fish?

Question 2

1 mark

Which statement best explains why anaerobic respiration is utilized by marine organisms during periods of intense activity despite its lower efficiency?

Question 3

1 mark

In a laboratory experiment, the rate of carbon dioxide production in a marine crab was measured at different swimming speeds. Which of the following graphs would most likely represent the relationship between speed and \(CO_2\) output if the crab relies primarily on aerobic respiration?

Question 4

1 mark

What is the primary role of oxygen in the process of aerobic respiration within marine teleost fish?

Question 5

1 mark

Which statement comparing aerobic and anaerobic respiration in marine organisms is correct?

Question 6

2 marks

Name the organic metabolic product formed during anaerobic respiration in marine teleost fish and state the specific part of the cell where this reaction occurs.

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Question 7

5 marks

Compare the energy yield and metabolic products of aerobic respiration and anaerobic respiration in marine organisms, and explain why anaerobic respiration is less efficient for long-term survival.

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Question 8

2 marks

Identify the specific organelle where aerobic respiration occurs and name the internal folds of its inner membrane that increase the surface area for ATP production.

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