B1.3.3 - Anaerobic Respiration

Question 1

When would you need anaerobic respiration?

Answer 1

Exercise

Question 2

Why does anaerobic respiration need to occur?

Answer 2

When you exercise, your 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 word equation for anaerobic respiration?

Answer 3

Glucose -> lactic acid

Question 4

What is produced in anaerobic respiration?

Answer 4

Poisonous lactic acid

Question 5

Why do humans normally respire aerobically?

Answer 5

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

Question 6

What is oxygen debt?

Answer 6

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

Question 7

What organisms does anaerobic respiration occur in?

Answer 7

Many different animals and plants, sometimes microorganisms

Question 8

What does anaerobic respiration in microorganisms and plants produce?

Answer 8

Ethanol and carbon dioxide

Question 9

What is fermentation?

Answer 9

The process of ethanol and carbon dioxide getting made during anaerobic respiration in plants and microorganisms

Question 10

What is the word and symbol equation for fermentation?

Answer 10

Glucose -> ethanol + carbon dioxide

C6H12O6 -> 2C2H5OH + 2CO2