GCSE Biology: Aerobic and Anaerobic Respiration Practice Questions

Question 1

Q1: Knowledge Recall (2 marks)

Define aerobic respiration and state one key difference between aerobic and anaerobic respiration.

Question 2

Q2: Application (3 marks)

Explain why a marathon runner would experience muscle fatigue towards the end of the race.

Question 3

Q3: Data Analysis (4 marks)

The table shows the volumes of carbon dioxide produced by yeast in different sugar solutions.

Sugar Solution

Volume of Carbon Dioxide (cm³)

a) Plot a graph of the data.

b) Explain the relationship between sugar concentration and carbon dioxide production.

Question 4

Q4: Knowledge Recall (2 marks)

State the name of the molecule that acts as the final electron acceptor in aerobic respiration.

Question 5

Q5: Application (3 marks)

A student is investigating the effect of temperature on the rate of anaerobic respiration in yeast. Suggest one variable the student should control, and explain why.

Question 6

Q6: Data Analysis (4 marks)

A student measured the rate of oxygen consumption by a germinating seed, producing the following graph:

[Graph description would be here]

a) Describe the trend shown in the graph.

b) State the significance of the plateau in the graph.

c) Suggest a reason for the decrease in oxygen consumption after the plateau.

Question 7

Q7: Knowledge Recall (2 marks)

Define anaerobic respiration and state one advantage of anaerobic respiration for organisms.

Question 8

Q8: Application (3 marks)

Explain how the products of anaerobic respiration can affect the pH of muscle cells during exercise.

Question 9

Q9: Data Analysis (4 marks)

A scientist measured the rate of respiration in a plant leaf in different light intensities.

Light Intensity

Rate of Respiration (mm³ CO₂)

100

a) Calculate the percentage increase in the rate of respiration from 0 to 100 light intensity.

b) Explain how light intensity affects the rate of respiration in the leaf.

Question 10

Q10: Knowledge Recall (2 marks)

State the name of the organelle in which aerobic respiration takes place.

200

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