Give one word for the following:

The process by which the breakdown of food into small molecules occurs.

Respiration:

1. Respiration is the process of releasing energy by breaking down food (glucose) into smaller molecules that are needed for various body activities.
2. There are two types of respiration:

• Aerobic respiration:
  • The process of liberation of energy during the oxidation of food molecules in presence of oxygen is known as aerobic respiration.
• Anaerobic respiration:
  • The cellular respiration that takes place in absence of oxygen is known as anaerobic respiration.