Biology Topic Practice

Aerobic vs Anaerobic Respiration

Every GCSE Biologist must be able to contrast the two main types of cellular respiration.

Which type of respiration is more efficient at releasing energy?

What is Aerobic vs Anaerobic Respiration?

"Aerobic and anaerobic respiration are two metabolic pathways used by cells to release energy from glucose."

Question 1

Which statement correctly compares aerobic and anaerobic respiration in humans?

Question 2

Choose the correct answer: which statement correctly compares aerobic and anaerobic respiration in humans?

Question 3

Select which statement correctly compares aerobic and anaerobic respiration in humans?

Key Differences

Aerobic uses oxygen; Anaerobic does not.

Aerobic produces CO2 and water; Anaerobic (animals) produces lactic acid.

Aerobic releases a large amount of energy; Anaerobic releases small amounts.

Exam Tip

The reason anaerobic respiration releases less energy is that the glucose is not fully oxidized.

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