7.4b Effects Of Smoking On Health

Question 1

What does tar in cigarette smoke does to cilia?

Answer 1

It causes cilia to stick together, and increases mucus secretion.

Question 2

What harmful substances are contained in smoke?

Answer 2

Tar, nicotine, carbon monoxide.

Question 3

What’s the harmful effects of tar to human?

Answer 3

(Causes lung cancer) and coughs and respiratory diseases.

Question 4

What’s the harmful effects of nicotine to human?

Answer 4

(Causes addiction) and increases heart rate and blood pressure, leading to heart diseases in the long term.

Question 5

What’s the harmful effects of carbon monoxide to human?

Answer 5

(Reduces the oxygen content in blood) and leading to heart diseases in the long term.

Question 6

____ in cigarette smoke may turn our teeth and fingernails yellow. It may stick to our lung tissues and affect the ______ between the air in the air sacs and the blood in the blood vessels.

Answer 6

Tar, gas exchange.

Question 7

Extensive burning of fuels raises the amount of __________ in the atmosphere.

Answer 7

Carbon dioxide.

Question 8

….. A lot of air pollutants, including _______ / ________, are released in process. Such pollutants may cause acid rain.

Answer 8

Sulphur dioxide, carbon dioxide.

Question 9

_____________ is an indicator of the air pollution level.

Answer 9

Air Quality Health Index.

Question 10

The site of oxygen and carbon dioxide exchange in the lungs is at the ______.

Answer 10

Air sacs.