Effects Of Tobacco,Alcohol And Drugs

Question 1

True or False: Tobacco use can damage DNA in cells.

Answer 1

True

Question 2

What is the main toxic component in tobacco that can harm cells?

Answer 2

Nicotine

Question 3

What type of cells in the body are particularly vulnerable to the effects of tobacco?

Answer 3

Lung cells

Question 4

Fill in the blank: Tobacco use can lead to ___________ in cell growth and repair processes.

Answer 4

disruption

Question 5

What is a potential consequence of tobacco-induced damage to cells?

Answer 5

Increased risk of cancer

Question 6

Effects of gaseous elements of tobacco

Answer 6

CO shows 200X affinity for haemoglobin and reduces O2 availability to tissue
CO or hydrogen cyanide may paralyse cilia impairing removal of inhaled particles from respiratory tract

Question 7

Effects of particulate elements of tobacco

Answer 7

Nicotine stimulates receptors for nicotin in the brain to cause increase to blood pressure by direct catecholamines effects
Moves free fatty acids from tissue important for atherogenesis
Predisposes to platelet adhesion and aggregation increasing risk of coronary arterial thrombosis and myocardinal infarction or cardiac arrhythmia
Chemoattractant layering polymorphs and macrophage to alveolar space