Pages in this set

Page 1

Preview of page 1
Drugs and you

A drug is a chemical that affects the body and / or the
brain
Drugs can be used as medicine or for pleasure
Some drugs that are used for pleasure are legal, like
cigarettes and alcohol
Some drugs are illegal, like heroin and cocaine
There are five…

Page 2

Preview of page 2
Depressants

Alcohol
Solvents
Temazepan

Slows down the brain by slowing down the synapses
Makes you feel tired and lethargic
Causes forgetfulness and slow reactions

Page 3

Preview of page 3
Hallucinogens

Cannabis
LSD

Distorted sensations, emotions and perceptions

Page 4

Preview of page 4
Painkillers

Aspirin
Heroin

Nerve impulses blocked
Reduces pain
Some can be addictive

Page 5

Preview of page 5
Performance enhancers

Anabolic steroids

Increases muscles development

Page 6

Preview of page 6
Stimulants

Nicotine
Ecstasy
Caffeine

Increases brain activity by stimulating the synapse




Illegal drugs

Illegal drugs can be harmful
They can cause side effects and can lead to addiction or
death

Page 7

Preview of page 7
Even medicines have side effects and can be deadly if
used incorrectly which is why most are only available on
subscription

In the UK drugs are classified into three main groups




Effects of smoking

Cigarette smoke contains over 200 chemicals, the most
important being :
Carbon monoxide
Tar
Nicotine

Page 8

Preview of page 8
The smokers cough

Cells that line the trachea and bronchioles are called
epithelial cells
Some cells have ting hairs called cilia and others make
sticky mucus

Cigarette smoke stops the cilia from moving
Dust and particulates collect and irritate cells
Smokers coughs moves this upwards so it can be swallowed

Page 9

Preview of page 9
Smoking has been reduced in the last few years by :

Banning smoking in public places
Banning advertising
Producing help lines, nicotine patches and education
Channing the images ­ more uncool
More warnings

Alcohol

Alcohol slows the brain by slowing the neurone
transmitters' and so increases reaction time
It can…

Page 10

Preview of page 10
The effect of alcohol on the liver

The liver breaks down toxic chemicals such as alcohol
The alcohol content of a drink is measured in units of
alcohol
The amount of alcohol in drinks varies
One unit of alcohol contains 10ml of pure alcohol
Half a pint ( 250ml )…

Comments

Miss Meera J

Very helpful :)

Similar Biology resources:

See all Biology resources »See all resources »