Health of Human Respiratory System (4)

Carbon monoxide (1)

Is usually found in cigarette smoke and exhaust gases of motor vehicles

Carbon monoxide (2)

Is a colourless and odourless gas

Effects of carbon monoxide on the human respiratory system (1)

When carbon monoxide diffuses from the alveoli into the blood capillaries, it will combine chemically with haemoglobin to form carboxyhaemoglobin

Effects of carbon monoxide on the human respiratory system (2)

This causes a shortage of oxyhaemoglobin in blood that transports oxygen to the body cells

Effects of carbon monoxide on the human respiratory system (3)

Due to this shortage, the body cells are unable to produce the required amount of energy through cellular respiration

Sulphur dioxide (1)

Sulphur dioxide that is released into the air is normally produced by the combustion of coal from power stations

Sulphur dioxide (2)

Sulphur dioxide is a colourless gas with a pungent smell

The effect of sulfur dioxide on the human respiratory system (1)

Causing cough

The effect of sulfur dioxide on the human respiratory system (2)

Causing difficulty in breathing

The effect of sulfur dioxide on the human respiratory system (3)

Causes bronchitis