Question

Which of the following increases in muscle cells when they are lacking in oxygen?

Options

• Carbon dioxide

• Lactose

• Lactic acid

• Uric acid

Answer 1

Lactic acid

In the muscle cells that lack oxygen, the concentration of lactic acid is increased. This is because, here, anaerobic respiration takes place in which glucose is converted into lactic acid with the release of a small amount of energy.