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Page 1

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Biology B1 Topic 3

B1 Topic 1
Topic 2
Biology Drugs
Topic 3 Pathogens
Science B3


Drug - a chemical substance that changes the way in which the body works

Narcotic - a drug that makes us feel sleepy e.g.

Painkillers - e.g. heroin, morphine, paracetamol.…

Page 2

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Biology B1 Topic 3



Sort the drugs into medicinal and recreational - Explain
your choices


Page 3

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Biology B1 Topic 3

Should caffeine be made illegal?
Use the statements below to write a balanced
argument explaining if you think Caffeine should
be made illegal
High doses of caffeine can The more caffeine you
cause hyperventilation take, the more tolerant
Caffeine can help you stay (rapid breathing) and…

Page 4

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Biology B1 Topic 3

Damage caused by Smoking

How can smoking cigarettes harm you?

· Contents of a typical cigarette
· Detailed information about the affect of
carbon monoxide
· Correlation between smoking and lung cancer

The damage caused by smoking

Find out the effects of some of…

Page 5

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Biology B1 Topic 3

Three Main Components of Cigarettes

· addictive
· absorbed into the blood and affects the brain within 10 seconds.
· releases neurotransmitters that make you feel good
· causes a surge of heart rate, blood pressure, and adrenaline (which also feels good).
· when effects…

Page 6

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Biology B1 Topic 3

· Higher % of men die from each disease than women

· Most people (highest %) die of respiratory diseases
· Lowest % of people die of circulatory diseases

· Men take more risks than Women

· Men have a shorter lifespan than women

· Women…

Page 7

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Biology B1 Topic 3

There is evidence that tobacco companies have known for many
years that smoking damages health, but they kept those reports
secret. What reasons might the company have for this decision?

Should the legal age to buy alcohol be raised?
Look at the statements are decide where…

Page 8

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Biology B1 Topic 3

Key points on Alcohol

Alcohol is a depressant. It slows brain activity and increases
reaction times. This can be dangerous, e.g. when driving. It also
lowers inhibitions so people are more likely to take risks. Large
amounts of alcohol can cause blurred vision and affect

Page 9

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Biology B1 Topic 3

B1 Topic 1
Topic 2
Biology Drugs

Topic 3 Pathogens
Science B3


Micro-organism - organism that is too small to see without magnification

Pathogen - micro-organism that causes an infectious disease

Direct contact - method of transfer by actual body contact


Page 10

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Biology B1 Topic 3

People are always talking about microorganisms and germs, but
what are they?

You body is home to millions of different microorganisms, but are
they all harmful?

Write down everything that you can
remember about microorganisms

Micro Organisms

Watch the video and write down every fact…







excellent resource 


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