Respiratory System – Notes

Life Processes – Respiration

Respiration is the process of oxidation of food and releasing energy.

Breathing is the process o f inhaling oxygen and exhaling carbon dioxide.

Exhaled air contains more carbon dioxide than when compared to atmospheric air.

Aerobic organisms break down their food into carbon dioxide and water while anaerobic organisms breakdown food into alcohol and carbon dioxide.

Adenosine Triphosphate (ATP) is the molecular currency for transferring energy.

Diffusion is the process by which a gas moves from an area of high concentration to an area of low concentration until a balance is reached.

Plants release oxygen in the day time and given out carbondioxide at night.

The rate of breathing in aquatic organisms is much faster than in terrestrial organisms.