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2885061
drugs
Description
GCSE Biology Unit 1 AQA Drugs
No tags specified
gcse biology
aqa
unit 1
drugs
a level
Mind Map by
Sophie McGuire
, updated more than 1 year ago
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Created by
Sophie McGuire
almost 9 years ago
15
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Resource summary
drugs
definition = a substance that modifies or affects chemical reactions in the body
harmful
smoking
pregancy
reduces oxygen to fetus
miscarrige
premature birth
low weight
cigarettes
4000 chemicals
nicotine
carbon monixide
combines with hymoglobin
reduces ability of blood to carry oxygen
strain on circulatory system
heart disease
strokes
tar
carcinogens
cancer
lung
mouth
throat
beneficial
extracted from natural resources
drug testing
computer models
human cells grown in labs
animal testing
clinical trials
test group
new drug
control group
existing drug or placebo
blind trials
volunteers don't know if test or control group
double blind trials
volunteers and researchers don't know which group they're in
Antibiotics
slow down or stop growth of bacteria
penicillin
1928, Alexander Fleming
depressant
slows down nerve and brain activity
alcohol, solvents, temazepam
affect the synapses between neurones in the nervous system
stop the next neurone sending nerve impulses
hallucinogen
changes what we see and hear
LSD
painkiller
blocks nerve impulses
aspirin, paracetomol
performance enhancer
improves muscle development
anabolic steroids
stimulant
increases nerve and brain activity
nicotine, caffeine, ecstasy
cause more neurotransmitter molecules to diffuse across the synapses
prescription
illegal
class A
most dangerous
ecstasy, cannabis, heroin, cociane
addicitve
damage heart & circulatory system
needle drugs, infected blood
HIV, hepititas
alcohol
ethanol
depressant
slows signals in nerves and brain
liver removes alcohol from bloodstream
enzymes breakdown alcohol
toxic
effects
sleepiness
impaired judgment
loss of balance
loss of control
blurred vision and speech
increased blood flow to skin
damage to liver and brain
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