B1.3.3 - Anaerobic Respiration

Question 1

What is anaerobic respiration?

Answer 1

Respiration without oxygen

Question 2

Why and when is it used?

Answer 2

Your heart can’t provide enough oxygen to the body during high intensity exercise. So to use extra energy for short periods of time, your body switches to anaerobic which doesn’t require oxygen

Question 3

What is the word equation for anaerobic respiration?

Answer 3

Glucose —> Lactic Acid

Question 4

What is lactic acid and what does it do?

Answer 4

It’s a poisonous acid building up in the muscles after anaerobic respiration. It can cause cramps in the muscles and later on, fatigue.

Question 5

Why does anaerobic not produce as much as aerobic?

Answer 5

The glucose isn’t fully broken down

Question 6

What is oxygen debt?

Answer 6

Exercise has finished, and you continue breathing heavily, and that extra oxygen you intake now reacts with the lactic acid, breaking it down and reducing effects.

Question 7

Define: Fermentation

Answer 7

Anaerobic respiration that occurs in micro organisms and plant cells, resulting in ethanol and carbon dioxide.

Question 8

Word equation for fermentation

Answer 8

Glucose —> Ethanol + Carbon Dioxide