Anaerobic Respiration

Question 1

What is the word equation for anaerobic respiration?

Answer 1

glucose → lactic acid (+energy)

Question 2

What is the chemical equation for anaerobic respiration?

Answer 2

C6H12O6 → 2C3H6O3

Question 3

What is anaerobic respiration?

Answer 3

Incomplete breakdown of glucose / respiration without oxygen

Question 4

What is glucose from food sometimes stored as?

Answer 4

Glycogen

Question 5

Why does the body endure anaerobic respiration instead of aerobic?

Answer 5

• Subject to long periods of vigorous activity

* Body can’t supply enough oxygen to muscles

Question 6

What does the product of anaerobic respiration, lactic acid, do?

Answer 6

Builds up in the muscles, causing muscle fatigue

Question 7

What does ‘muscle fatigue’ mean?

Answer 7

Muscles stop contracting efficiently

Question 8

What is another downside of anaerobic respiration?

Answer 8

Doesn’t release as much energy as aerobic respiration

Question 9

What is the oxygen debt?

Answer 9

Muscles repay the oxygen that didn’t get to muscles in time

Question 10

How is the oxygen debt repaid?

Answer 10

Blood flows through muscles to remove lactic acid by oxidising it into carbon dioxide and water