Question

respiration in human beings identify the chemical reaction and define it​

Answer 1

Breathing is the process by which humans and most other land animals take air containing oxygen into our bodies, but aerobic respiration is the chemical reaction that allows cells to convert glucose in the presence of oxygen to useful energy, water and carbon dioxide at the microscopic level.

Answer 2

The chemical reaction is Combustion.

It can be defined as the chemical combining of substances with oxygen. It also involves the production of heat and light.