Question

1)why do we get instant energy from glucose
2)why humans don't digest cellulose ​

Answer 1

1)glucose and oxygen are the components which are used in respiration ( the process from which we get energy ).

that is why we get instant energy from glucose.

2) humans are omnivores who have comparatively shorter intestine than herbivores .

So it is difficult for humans to digest cellulose.

Answer 2

Answer:

Glucose is a simple sugar which can be readily absorbed by the body. Once inside, glucose undergoes oxidation, which results in the release of ATP, a high-energy molecule that provides energy for the cell.