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GCSE Biology 2.4 Energy From Respiration > End Of Unit Questions > Flashcards

Flashcards in End Of Unit Questions Deck (10)
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1

What is meant by anaerobic respiration?

Respiration without oxygen

2

What do muscle cells need more of during exercise?

Energy

3

What are the 2 waste products from aerobic respiration?

Carbon dioxide and water

4

Which substance is stored in the muscles and can be turned into glucose?

Glycogen

5

What is the word equation for aerobic respiration?

Oxygen and glucose goes to carbon dioxide and water

6

Why do muscles become fatigued during vigorous exercise?

Lactic acid builds up in the muscles

7

What changes occur to the heart rate and breathing rate during exercise?

They both increase in order to move oxygen round the body faster and remove carbon dioxide quickly

8

Why do blood vessels in the muscles dilate during exercise?

Allows an increase blood supply to the muscle cells to provide oxygen and glucose more quickly and to remove carbon dioxide faster

9

Explain what is meant by oxygen debt?

The amount of oxygen needed to break down the lactic acid produced in anaerobic respiration

10

What does the term aerobic mean?

Using oxygen