B1 - Drugs and you Flashcards Preview

Biology - Bethany DONE > B1 - Drugs and you > Flashcards

Flashcards in B1 - Drugs and you Deck (17):
1

What are the five types of drugs?

- depressants
- hallucinogens
- stimulants
- painkillers
- performance enhancers

2

What do depressants do?

Depressants slow down the workings of the brain.

3

What do hallucinogens do?

Hallucinogens distort what a person sees and hears.

4

What do painkillers do?

Painkillers stop nerve impulses so no pain is felt.

5

What do performance enhancers do?

Performance enhancers develop muscles.

6

What do stimulants do?

Stimulants speed up the workings of the brain.

7

What is tolerance?

Tolerance is when an organism no longer responds to a drug.

8

Which class of drug is the most dangerous?

Class A drugs are the most dangerous.

9

Suggest why the penalties for supplying drugs are greater than for possession.

This is because you are then giving the drugs to other people and creating even more damage for others.

10

How does nicotine affect the nervous system?

Nicotine causes more neurotransmitter substances to cross to the next neuron and bind to the receptor molecules.

11

Explain why the effects of alcohol are different to the effects of nicotine.

This is because alcohol is a depressant and causes less neurotransmitter to be released whereas nicotine is a stimulant and causes more to be released.

12

Name the four main chemicals in tobacco smoke.

- tar
- nicotine
- carbon monoxide
- particulates

13

What does smoking cause?

Smoking stops the cilia from moving and makes the goblet cells produce extra mucus. Dust and particulates collect and irritate the cells, causing a cough.

14

What is units of alcohol?

Units of alcohol is the alcohol content of a drink.

15

What is one unit equivalent to?

One unit of alcohol is equivalent to 10ml of pure alcohol.

16

Why do alcohol related injury call outs vary during the week?

This is because more people drink alcohol towards the end of the week when they are not working.

17

What is alcohol liver cirrhosis?

Damage from repeated and excessive alcohol abuse leads to alcoholic liver cirrhosis. When the liver tissue starts to scar, the liver doesn’t work as well as it did before. As a result, the body can’t produce enough proteins or filter toxins out of the blood as it should.