1.4 energy supply and the effects of exercise on the body

Question 1

equation for aerobic resipration

Answer 1

glucose + oxygen –> carbon dioxide + water

Question 2

equation for anaerobic respiration

Answer 2

glucose –> lactic acid)

Question 3

what is aerobic respiration

Answer 3

respiration that takes place in the presence of oxygen

Question 4

what is anaerobic respiration

Answer 4

process of converting glucose into energy without oxygen

Question 5

what type of activity suited for aerobic respiration

Answer 5

• long duration
• low intensity

Question 6

what type of activity is suited for anaerobic respiration

Answer 6

• short duration
• high intensity

Question 7

what is EPOC

Answer 7

• excess post-exercise oxygen consumption
• caused by anaerobic exercise producing lactic acid
• continuation of high BR/HR to remove lactic acid

Question 8

explain factors affecting recovery time

Answer 8

• overall strength and fitness: stronger muscles = quicker at absorbing o2 needed to remove lactic
• genetics: inherit ability to recover quickly from parents
• age: as get older, recovery time increases
• gender
• sleep: good sleep helps body recover mentally and physically

Question 9

short term effects of exercise

Answer 9

• BR increase
• HR increase
• red skin / heat control / sweating
• fatigue
• nausea
• light-headed

Question 10

long term effects of exercise

Answer 10

• heart size increases (hypertrophy)
• resting pulse rate decreases (bradycardia)
• stroke volume increases
• ability to tolerate lactic acid increases