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Gcse Science
Biology - Use Of Drugs (Aqa)
Solution
Q.1.
What is the importance of thalidomide?
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It was the first ever antibiotic
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It prompted drug testing laws to be improved
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It was the most profitable drug of all time
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It was the first drug to be sold that didn't need a prescription
Q.2.
What were the effects of thalidomide on a foetus?
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Twisted spine
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Limb abnormalities
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Kidney problems
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Uneven growth of the head bones (elephantitis)
Q.3.
Why was thalidomide sold to pregnant women?
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To cure backache
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To prevent varicose veins
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To help them sleep
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To stop morning sickness
Q.4.
What is a double blind clinical trial?
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One in which the patients wear blindfolds so they don't know if they have had the drug or the placebo
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Only the doctors know who has had the drug and who has had the placebo
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Only the patients know who has had the drug and who has had the placebo
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Neither the doctors nor the patients know who has had the drug and who has had the placebo until afterwards
Q.5.
What is the purpose of the first clinical trial?
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To see if it is toxic to humans
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To find the best dose
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To make some money so that they can manufacture the drug
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To see if people like the taste of the new drug
Q.6.
What is a placebo?
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A double strength version of a drug
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A half strength version of a drug
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A fake version of the drug
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A scientist who specialises in doing clinical trials
Q.7.
Which of these is one reason why it costs a lot of money to develop new drugs?
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A lot of the new substances being developed as drugs fail the first tests
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It makes the drugs companies more profit
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They pay large sums of money to people who agree to take part in clinical trials
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Making the placebo costs twice as much as making the new drug
Q.8.
Why must medical drugs be tested before they are used on patients?
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To check they work efficiently
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To check that they are safe to use
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To find the best dose
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All of the above
Q.9.
Which one of the following is not a medical drug?
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Heroin
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LSD
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Paracetamol
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Thalidomide
Q.10.
Why are drugs tested on cells, tissues and live animals in the laboratory first?
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Only to see if it does what the scientists hope it will do
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Only to find out if it could be toxic
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Only to check for the right dose
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To see if it if it works and is non-toxic
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