Drugs And You

Question 1

What are the five types of drugs? Give an example for each.

Answer 1

Stimulant - caffeine 
Depressant - alcohol
Hallucinogen - LSD
Painkiller - aspirin
Performance Enhancer - anabolic steroids

Question 2

How does a stimulant decrease reaction time?

Answer 2

It produces more neurotransmitter to diffuse across the synapse so impulses are passed along neurones quicker.

Question 3

How does a depressant increase reaction time?

Answer 3

It blocks the neurotransmitter from reaching some of the receptor molecules of the other neurone by bind with some receptor molecules.

Question 4

What is an effect of smoking that has nothing to do with blood pressure?

Answer 4

Smoker’s cough

Question 5

Where are cilia found?

Answer 5

• Epithelial lining of the trachea
• Bronchi
• Bronchioles

Question 6

How is smoker’s cough caused?

Answer 6

1) Smoke contains chemicals that stop cilia moving
2) Dust irritates the epithelial lining
3) Mucus produced by goblet cells not being moved by the cilia

Question 7

What are the short term effects of alcohol?

Answer 7

• Increases reaction times

- Increases risk of accidents

Question 8

What is a long term effect of alcohol?

Answer 8

Cirrhosis of the liver (the liver is damaged when it breaks down toxins)