Exercise

Question 1

What does an increase in muscle activity require?

Answer 1

more glucose and oxygen to be supplied to the muscles cells

Question 2

Why does physical activity increase your breathing rate and make you breathe more deeply?

Answer 2

to meet the demands for extra oxygen

Question 3

What 3 things does physical activity do?

Answer 3

1) Increases your breathing rate
2) Makes you breathe more deeply
3) increases the speed at which the heart pumps

Question 4

When is glycogen used?

Answer 4

Glycogen is used during exercise

Question 5

Where is glycogen stored?

Answer 5

Glycogen is mainly stored in the liver, but each muscle also has its own store

Question 6

How is glycogen used during exercise?

Answer 6

During vigorous exercise muscles use glucose rapidly, so some of the stored glycogen is converted back to glucose to provide more energy

Question 7

What do muscle cells do?

Answer 7

These use oxygen to release energy from glucose which is used to contract the muscles