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Flashcards in Response to exercise Deck (5)
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1

What happens to the body during exercise?

The heart rate, breathing rate and breath volume increase to supply the muscles with more oxygenated blood.

2

When does anaerobic respiration take place in muscles?

When insufficient oxygen is supplied.

3

What does anaerobic respiration do in muscles?

It's the incomplete breakdown of glucose and this causes a build up of lactic acid and creates an oxygen debt. During long periods of vigorous activity muscles become fatigued and stop contracting efficiently, so this respiration obtains energy.

4

What is an oxygen debt?

The amount of extra oxygen the body needs after exercise to react with the build up of lactic acid and remove it from the cells.

5

Where is lactic acid converted back into glucose?

Blood flowing through the muscles transports the lactic acid to the liver where it is converted back into glucose.