Respiration in organisms lesson

Breathing comes under respiration

made by me!!

The process of breaking down of food in the cell with release of energy is called cellular respiration.

😀we take in air through our nostrils. When we inhale air, it passes through our nostrils into the nasal cavity. From the nasal cavity, the air reaches our lungs through the windpipe. Lungs are present in the chest cavity (Fig. 10.4). This cavity is surrounded by ribs on the sides. A large, muscular sheet called diaphragm forms the floor of the chest cavity (Fig. 10.4). Breathing involves the movement of the diaphragm and the rib cage.

The number of times a person

breathes in a minute is termed as the

breathing rate