Smoking

Question 1

Nicotine

Answer 1

Addictive substance in tobacco , it quickly reaches the brain and creates dependency so that smokers become addicted to

Question 2

Effects of smoking in the air passages

Answer 2

Sticky mucus in the lungs, traps pathogens, mucus is normally swept out of the lungs by cilia. However, cigarette smoke chemicals paralyse the cilia leading to buildup of mucus and a smokers cough.

Smoke can also irritate the bronchi causing bronchitis

Question 3

Effects on the alveoli

Answer 3

Smoke ( carbon monoxide) damages, alveoli walls, reducing the ability of the blood to carry oxygen ( carbon monoxide combines w the haemoglobin) straining the heart, therefore increasing risk of developing coronary, heart, disease, or strokes

Question 4

Lung conditions due to smoking

Answer 4

Tobacco smoke contains many carcinogens, including tar, smoking increases risk of lung cancer, mouth, cancer, throat and oesophagus cancer

Question 5

Emphysema

Answer 5

A lung condition that causes shortness of breath due to the alveoli being damaged