B1e - drugs

Question 1

What is the legal classifications of drugs?

Answer 1

• class a (most dangerous, heaviest penalties)

- class c (least dangerous,lightest penalties)

Question 2

What drugs are there?

Answer 2

• depressants, limited to alcohol, solvents and tamazepan
• pain killers, limited to aspirin and paracetamol
• stimulants, limited to nicotine, ecstasy and caffeine
• performance enhancers, limited to anabolic steroids
• hallucinogens, limited to LSD

Question 3

What is the action of depressants and stimulants on the synapses of the nervous system?

Answer 3

• depressants bind with receptor molecules in the membrane of the next neurone blocking the transmission of the impulses
• stimulants cause more neurotransmitter to cross the synapse

Question 4

What are the effects of smoking?

Answer 4

• cancer
• heart disease
• emphysema
• birth weights of babies born to mothers who smoke

Question 5

How do cigarettes affect cilliated epithelial cells?

Answer 5

It creates a lining on the trachea, bronchi and bronchioles

Question 6

How does the liver get damaged as it removes alcohol?

Answer 6

• enzymes in the liver break down alcohol

- toxic products of breakdown cause liver damage