Respiration (AQA GCSE Biology): Quizzes

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Respiration
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Where does respiration occur?

In all living cells

Which type of respiration uses oxygen?

Aerobic respiration

What are the two products of aerobic respiration?

Carbon dioxide and water

Which type releases the most energy?

Aerobic respiration

When does anaerobic respiration occur in muscles?

During intense exercise

What is the product of anaerobic respiration in muscles?

Lactic acid

Why does aerobic respiration release more energy?

It completely breaks down glucose

What type of reaction are both aerobic and anaerobic respiration?

Exothermic

Which is NOT a use of energy from respiration?

Making oxygen

What is fermentation?

Anaerobic respiration in yeast

What are the products of fermentation?

Ethanol and carbon dioxide

How does fermentation help bread making?

Carbon dioxide makes dough rise

What is the key difference in anaerobic products: muscles vs yeast?

Muscles: lactic acid; yeast: ethanol

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