Question

how faster glucose metabolism is reason for less oxygen in our body

Answer 1

The faster the metabolism faster will be the consumption of oxygen which finally increases the urge for oxygen because of more requirement of it.
Hope u got that

Answer 2

Ans :

The process by which glucose is broken down in the

absence of air is also called anaerobic respiration. There

are two ways of anaerobic breakdown of glucose. First

step is breakdown of glucose molecule into pyruvate

which takes place in cytoplasm. This step is common

in both the ways.

1. The anaerobic breakdown in bacteria is called

fermentation. During fermentation, pyruvate

is broken down into ethyl alcohol and carbon

dioxide.

2. When there is lack of oxygen in our muscle cells,

pyruvate is broken down to lactic acid. Very less

amount of energy is released in both the cases.