Respiration in humans

Question 1

Aerobic respiration

Answer 1

glucose + oxygen = carbon dioxide + water

Question 2

Anaerobic respiration

Answer 2

glucose = lactic acid

Question 3

Oxygen debt

Answer 3

Amount of oxygen required to remove lactic acid

Question 4

Ways to remove oxygen debt

Answer 4

1. Continuous of fast heart rate which results in fast transport of lactic acid from muscles to liver and oxygen from lungs to liver.
2. Continuation of deeper and faster breathing results in fast intake of oxygen by the lungs to remove lactic acid in the blood

Question 5

gas exchange in the alveoli

Answer 5

oxygen dissolves into the thing film of moisture on the wall of the alveolus,
the dissolved oxygen then diffuses through the wall of the alveolus and the wall of the blood capillary into the red blood cell
The oxygen combined with haemoglobin to form oxyhemoglobin
carbon dioxide diffuses from the blood into the alveolar wall