Question

Briefly define RESPIRATION topic by NCERT . Explain it by help of points

Answer 1

the term 'respiration' derived from latin word respire' meaning to breathe', refers to the whole chain of process from the inhalation of air to the use of oxygen in the cells......
process of inhalation and exhalation is called respiration

Answer 2

$\huge\bold{ \pmb{ \color{cyan}{ \underline{RESPIRATION} \: :-}}}$

Respiration is the chemical process, which involves breathing in oxygen , breathing out carbon dioxide & breakdown of food using oxide to release energy.

DETAILED EXPLANATION

• All living organisms require energy to carry out various life processes . like nutrition, transport, excretion, reproduction, etc. This energy is stored in the food that we eat .

• In order to break down food to release energy oxidation of food takes place. This reaction takes place in the cells of the body of the organisms.

• The oxygen needed for the oxidation comes from the air that we inhale. This oxygen is then transported to every cell.

• Thus, the process in which food is broken down to release energy is called respiration. During respiration, carbon dioxide and water are released as waste - products.

Types of Respiration :-

• Aerobic respiration requires oxygen and releases lots of energy.
• Anaerobic respiration does not require oxygen and releases less energy.