2.3

Question 1

Importance of forest reserve of the respiratory system

Answer 1

reduce substance that can be harmful to the respiratory system

Question 2

The air inhaled during breathing may contain substances that can be harmful to the respiratory system.
Give example

Answer 2

1.Cigarette tar
2.Carbon monoxide
3.Sulphur dioxide
4.Nitrogen dioxide
5.Haze,dust and pollen

Question 3

What and where is cigarette tar found

Answer 3

1.Toxic substance
2.Found in cigarette smoke

Question 4

What does cigarette tar kill in the air passage way?

Answer 4

Kill cells with thorax , pharynx , epiglottis , larynx , bronchioles and alveoli

Question 5

Cigarette tar has an increase in production of what in the lungs?

Answer 5

Mucus and phlegm

Question 6

Where is carbon monoxide usually found in?

Answer 6

1. Cigarette smoke
   2.Exhaust gases of motor vehicles

Question 7

What happens when monoxide diffuses from the alveoli into the blood capilarries?

Answer 7

Combine chemically with haemoglobin to form carboxyhaemoglobin

Question 8

Sulphur dioxide that is released into the air normally is produced by

Answer 8

Combustion of coal from power stations

Question 9

Nitro dioxide that is released into the air is produce by?

Answer 9

Combustion of fuels such as petrol and diesel in motor vehicles

Question 10

Haze , dust and pollen

Answer 10

are solid particles which are fine , light and suspended in the air

Question 11

Pollen released from anthers into the air is carried

Answer 11

by the wind over long distance

Question 12

What do haze , dust and pollen irritate and what does it cause?

Answer 12

Respiratory system
causes diseases such as asthma