B1.3.3 - Anaerobic Respiration

Question 1

When would you need anaerobic respiration?

Answer 1

Exercise

Question 2

Why does anaerobic respiration occur?

Answer 2

When you exercise, Yoruba heart rate will increase in rate. However, it cannot exceed its maximum rate so it transfers energy from chemical stores using anaerobic respiration

Question 3

What is the equation for anaerobic respiration?

Answer 3

Glucose -> lactic acid

C6H12O6 -> C3H6O3

Question 4

Why is poisonous lactic acid produced?

Answer 4

The glucose is not completely broken down

Question 5

What can a buildup of lactic acid cause?

Answer 5

Cramp

Question 6

Why do humans normally respire aerobically?

Answer 6

Aerobic respiration produces more ATP molecules per glucose molecule
Anaerobic respiration produces lactic acid which can cause cramps and fatigue

Question 7

What is oxygen debt?

Answer 7

The extra oxygen you inhale after anaerobic respiration to break down lactic acid

Question 8

What organisms does anaerobic respiration occur in?

Answer 8

Many different animals and plants, sometimes microorganisms

Question 9

What does anaerobic respiration in microorganisms and plants produce?

Answer 9

Ethanol and Carbon Dioxide

Question 10

What is fermentation?

Answer 10

The process of Ethanol, and carbon dioxide being produces during anaerobic respiration in plants and microorganisms

Question 11

What is the equation for fermentation?

Answer 11

Glucose -> ethanol + carbon dioxide

C6H12O6 -> C2H5OH + CO2

Question 12

How would you balance this equation?

Answer 12

C6H12O6 -> 2C2H5OH + 2CO2