Respiration & Air Pollution

Question 1

Respiration

Answer 1

The process by which energy is released from food by all living cells

Question 2

Breathing

Answer 2

Refers to the movements that cause air to be moved into and out of the lungs, which form part of the respiratory system

Question 3

Gaseous exchange

Answer 3

The process by which oxygen diffuses into the blood and carbon dioxide diffuses out of the blood through a respiratory system

Question 4

Aerobic Respiration

Answer 4

The process by which energy is released from food by all living cells using oxygen

Question 5

Anaerobic respiration

Answer 5

The process by which energy is released from food by living cells without the use of oxygen

Question 6

Pollution

Answer 6

The contamination of the natural environment by the release of unpleasant and harmful substances into the environment

Question 7

Effects of smoking

Answer 7

Lung damage
Cancer of the mouth, throat, oesophagus or lungs

Question 8

Importance of smoke-free environments

Answer 8

Protects individuals against exposure to secondhand smoke.