Anaerobic respiration

Question 1

What is the RQ value of aerobic respiration of glucose?

Answer 1

One

Question 2

What does it mean if the RQ value is more than one?

Answer 2

Some anaerobic respiration is taking place.

Question 3

Why does aerobic respiration produce more ATP per molecule of glucose than anaerobic respiration?

Answer 3

Aerobic respiration has oxidative phosphorylation.
Oxygen is the final electron acceptor.
In anaerobic respiration only glycolysis occurs.

Question 4

Why is converting pyruvate to ethanol important to allowing the continued production of ATP?

Answer 4

Allow NAD to be recycled so that glycolysis can proceed.

Question 5

What are the advantages to collecting a large number of results?

Answer 5

To identify any anomalies.
Allows use of statistical test.

Question 6

Name two substances formed from pyruvate.

Answer 6

ATP
Reduced NAD

Question 7

Why do muscles become fatigued when there is not enough oxygen?

Answer 7

Increased concentration of lactate, increases acidity.
Enzymes are inhibited

Question 8

Suggest an advantage of lactate being oxidised in the muscles.

Answer 8

pH is restored
Muscles have increased energy.