Anaerobic Respiration

Question 1

Does anaerobic respiration take place in the presence of oxygen?

Answer 1

No, anaerobic respiration does not require oxygen for it to happen.

Question 2

(T or F) Anaerobic respiration produces more energy than aerobic respiration.

Answer 2

False, it produces less energy than aerobic respiration

Question 3

(T or F) Anaerobic respiration releases energy quicker than aerobic respiration.

Answer 3

True

Question 4

What is the name for a different version of anaerobic respiration that takes place in microorganisms such as bacteria, yeast and fungi?

Answer 4

Fermentation

Question 5

What is the word equation for fermentation?

Answer 5

glucose -> ethanol + carbon dioxide

Question 6

Yeast undergoes ………. when bread and beer is made.

Answer 6

fermentation

Question 7

What happens to the ethanol produced when bread is baked?

Answer 7

When bread is baked, the ethanol evaporated because of the heat. This is why the bread is not actually alcoholic.

Question 8

When does anaerobic respiration take place in humans and why?

Answer 8

During energy-using activities our body cells may not have enough oxygen for aerobic respiration to take place so anaerobic respiration takes place instead.

Question 9

What is the word equation for anaerobic respiration in humans?

Answer 9

glucose -> lactic acid

Question 10

What can a build of lactic acid in muscles cause?

Answer 10

• pain & tiredness
• this leads to cramps