Metabolism Practice Questions

Question 1

Q1. Knowledge Recall (1 mark)

Define the term "respiration".

Question 2

Q2. Knowledge Recall (2 marks)

Name the two types of respiration and state which one occurs in the presence of oxygen.

Question 3

Q3. Application (2 marks)

Explain why exercise can cause lactic acid buildup in muscles.

Question 4

Q4. Data Analysis (3 marks)

The table shows the effect of temperature on the rate of an enzymatic reaction.

Temperature (°C)

Rate of reaction (µmol/s)

Explain why the rate of reaction decreases at temperatures above 30°C.

Question 5

Q5. Calculation (2 marks)

Calculate the energy released by the complete oxidation of 1 g of glucose. Use the following equation: Energy = (Mass of glucose x Energy per gram)

Mass of glucose = 1 g

Energy per gram = 17 kJ/g

Question 6

Q6. Knowledge Recall (1 mark)

Name the organelle in which aerobic respiration occurs.

Question 7

Q7. Application (3 marks)

Explain how the structure of the mitochondria is adapted for its function.

Question 8

Q8. Data Analysis (4 marks)

The graph shows the oxygen consumption of a person during 10 minutes of exercise.

[Graph description would be here]

Explain how the graph shows that the person's intensity of exercise increased at 5 minutes.

Question 9

Q9. Application (2 marks)

Explain how the liver helps to maintain a constant blood glucose level.

Question 10

Q10. Knowledge Recall (2 marks)

Define the term "basal metabolic rate".

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