The Effect Of Exercise On The Body

Question 1

In aerobic respiration what needs to happen?

Answer 1

• the rate that oxygen and glucose reach the muscle cells must increase
• increase the rate at which waste carbon dioxide is removed.

Question 2

How does the body increase the rate at which glucose and oxygen reach the muscle cells?

Answer 2

• heart rate increases

- blood vessels widen

Question 3

How does the body increase the rate of oxygen uptake in the lungs?

Answer 3

Your breathing rate and breath depth increases.

Question 4

What do the muscles store glucose as?

Answer 4

Glycogen

Question 5

When is glycogen converted back into glucose?

Answer 5

During exercise

Question 6

When you exercise why does your body need more energy?

Answer 6

So your muscles can contract

Question 7

What needs to hope for glucose and oxygen to reach the muscles and carbon dioxide to be removed?

Answer 7

The blood must flow at a faster rate

Question 8

Where is glycogen stored?

Answer 8

Liver but each muscle has its own store

Question 9

What is muscle fatigue?

Answer 9

The build up of lactic acid causes the muscles to stop contracting efficiently

Question 10

What is. Benefit of exercise?

Answer 10

Your heart nd lungs become bigger and stronger and become more efficient t their function

Question 11

What should your:
Amount of blood pumped 
Volume of heart t rest 
Resting breathing rate
Resting pulse rate
Maximum lung volume 
Rates be like if you are fit?

Answer 11

Higher
Higher
Lower
Lower
Higher

Question 12

What are the body’s responses to exercise?

Answer 12

Increased heart rate
Imcreased breathing rate and depth
Glycogen converted to glucose
Blood flow increases

Question 13

Why does lactic acis cause muscle fatigue?

Answer 13

Because anaerobic respiration means less energy is produced for the muscles
The build up of this acid causes the muscles to not contract efficiently and get tired