Excercise

Question 1

What happens during exercise to your body

Answer 1

Reacts to increase the demand for energy

Question 2

What do muscles need to get more energy

Answer 2

Need energy from respiration to contract

Question 3

When you increase respiration in the cells what do you need more of

Answer 3

Oxygen

Question 4

What 3 things increase to get more oxygen into the blood

Answer 4

1. Breathing rate
2. Breath volume
   To get more oxygen in the blood
3. Heart rate - to get the oxygenated blood around the body faster, this removed co2 as well

Question 5

What does anaerobic respiration leads to

Answer 5

Insufficient oxygen leads to incomplete oxidation of glucose and causes a build up of lactic acid and can be painful

Question 6

What happens during long periods of vigorous activity

Answer 6

Muscles become fatigued and stop contracting efficiently

Question 7

What is oxygen debt

Answer 7

Amount of extra oxygen your body needs to react with the build up lactic acid to remove it from the cells

Question 8

How does your body cope with high level of lactic acid

Answer 8

Breathing rate and pulse rate stay high to get more oxygen into your blood which is transported to the muscle cells

Question 9

What happens to the blood flowing through muscles

Answer 9

It transports the lactic acid to the liver where it is converted back into glucose

Question 10

How could you measure breathing rate

Answer 10

Counting breaths
Taking the pulse
Plot on a graph