Key Stage 3 Science Book 3 Assessments
Our Health and the Effects of Drugs
1. Why is cannabis less addictive than tobacco? [1 mark]
a) Because people only do it occasionally
b) It doesn’t taste very nice when people smoke or eat it
c) It has no addictive substance in it
d) It doesn’t contain nicotine
2. Why do alcoholics sometimes develop a yellow colour in their skin? [1 mark]
a) Alcohol has a pigment in it that turns your skin yellow
b) Alcohol can damage the liver, meaning it can’t function properly; this means you
might end up being jaundice
c) Damage to the stomach lining from alcohol leads to yellow skin
d) Alcohol can lead to an increased heart rate which leads to chemicals leaving the
blood and causing your skin to go yellow.
3. Cholera spreads in a similar way to typhoid. How can governments drastically reduce the
spread of cholera? [1 mark]
a) Supply people with masks for use in public
b) Provide access to free contraception
c) Provide clean drinking water and good sanitation
d) Use insecticides to kill insects that carry the disease
4. HIV attacks a person’s T-cells. Why are HIV sufferers more prone to infections from
other microbes? [1 mark]
a) HIV can enter other microbes, which makes them stronger
b) HIV weakens the immune system by reducing
the number of T-cells available to attack microbes
c) HIV allows the other microbes to hide from the person’s immune system
d) HIV makes it much easier for microbes to enter the body
© HarperCollinsPublishers 2014
Key Stage 3 Science Book 3 Assessments
5. Four red paper discs, A-D, were soaked in four different antibiotic solutions and placed on an agar
plate. The agar plate contained bacteria, grown from a swab taken from a door handle near an
operating theatre in a hospital. The grey area shows bacterial growth, while the white areas show no
growth.
Which is the most effective antibiotic against the bacteria cultured on this plate? [1 mark]
a) D
b) C
c) B
d) A
6. In 1998, a research paper incorrectly claimed that there was a link between autism and the measles,
mumps and rubella vaccine (MMR). The subsequent media storm led to a vast reduction in the number
of children vaccinated against MMR.
The graph shows the relationship between the percentage of children given the MMR vaccine and the
number of reported cases of measles.
What relationship between the MMR vaccine and measles is shown? [1 mark]
a) Inverse relationship
b) Directly proportional relationship
c) A positive correlation
d) A skewed correlation
© HarperCollinsPublishers 2014
Key Stage 3 Science Book 3 Assessments
7. Match the drinks to the units of alcohol. [1 mark]
50 ml of vodka (40 per cent ABV)
3.1 units
75 ml of coffee liquor (17 per cent
ABV)
2.3 units
Pint of real ale (4 per cent ABV)
1.3 units
Pint lager (5.5 per cent ABV)
2.0 units
8. Match the sentences about lung cancer and smoking to the correct endings. [1 mark]
Most lung cancer is thought to be caused by __
passive smoking
Some smokers don’t get cancer because of __
the nicotine in
cigarettes
You may get lung cancer from __
smoking regularly for a
long period of time
Smokers often continue to smoke, despite the risk as
they are addicted to __
genetic factors
9. The bacteria that causes tuberculosis in the lungs causes inflammation and coughing. What cells
would you expect to present in much greater number than normal in the lungs? Choose two answers. [1
mark]
a) Platelets
b) T- and B-cells
c) Phagocytes
d) Red blood cells
10. Why is it not advisable for an alcoholic to go ‘cold turkey’? Choose two answers. [1 mark]
a) It might lead onto harder drugs
b) It can put the heart under pressure
c) The chance of success is reasonably limited as the withdrawal symptoms are unbearable
d) It could lead to dehydration
© HarperCollinsPublishers 2014
Key Stage 3 Science Book 3 Assessments
11. What are the similarities and differences between bacteria, viruses and fungi cells? [4 marks]
12. What kind of changes can occur in the bodies of drug addicts? Give two examples. [2 marks]
13. Describe some of the negative effects of drug use or addiction on the individual user and on society
as a whole. [2 marks]
© HarperCollinsPublishers 2014
Key Stage 3 Science Book 3 Assessments
14. Four red paper discs, A-D, were soaked in four different antibiotic solutions: Disc B was soaked in
methicillin and A, C and D in some other kinds of antibiotic solutions. They were then placed on an agar
plate.
The agar plate contained bacteria, grown from a swab taken from a patient who had developed an
infection after surgery. The grey area shows bacterial growth, while the white areas show no growth.
Why should the hospital be concerned about the results? [2 marks]
15. A bacteriophage is a virus which infects bacteria. A particular type of bacteriophage called T4 is
about 0.2 µm long and infects E.Coli, a rod-shaped bacterium which is about 2 µm in length. Calculate
how many T4 bacteriophages would fit length ways, nose to tail, into the E.Coli. Show your workings. [2
marks]
16. Claims that the measles, mumps and rubella (MMR) vaccine was linked to autism have led to a
decrease in the number of children vaccinated against these diseases. More recently it was shown that
there is no link between the MMR vaccine and autism. Explain why, even though the number of
children vaccinated with the MMR vaccine is rising, the number of children getting these diseases is still
rising. [4 marks]
© HarperCollinsPublishers 2014
Key Stage 3 Science Book 3 Assessments
17. One hospital has decided to use copper handles on their door as they believe it will transmit less
bacteria to visitors, patients and staff. Suggest how you might assess the effectiveness of copper
handles, compared with other materials, at reducing bacterial growth. [4 marks]
© HarperCollinsPublishers 2014