Respiration Test - 4

Respiratory roots are found in jussiaea.These roots are white and spongy filled with air that keep plants floating.

The sum total of all reactions occurring in the body, whether constructive or destructive is known as metabolism.

Pneumatophores are called breathing roots. These are the roots found above the ground.

Yeast can respire in the absence of oxygen and it produces alcohol as a by-product.

A person respires around 16 - 20 times in a minute.

The frog has three respiratory surfaces on its body that it uses to exchange gas with the surroundings: the skin, in the lungs and on the lining of the mouth.

In the human body, fats are stored in adipose tissue. Its main role is to store energy in the form of lipids, although it also cushions and insulates the body.

In reptiles, respiration takes place through skin. It is known as cutaneous respiration.

During inspiration (breathing in), the diaphragm contracts, drawning downward, creating a vacuum in the thoracic cavity. This vacuum inflates the lungs by drawing air into the body through the trachea, or windpipe.

Exchange of gases in lung alveoli occurs through simple diffusion,O2 diffusing from the alveoli into the blood & CO2 from the blood into the alveoli.