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10 Cards in this Set
- Front
- Back
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Name one disease thalidomide is used to treat now |
leprosy |
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Drugs are trialled to check for side effects on people. Give one other reason why drugs are trialled. |
any one from: • (test for) toxicity • (test for) dosage • (test for) efficacy |
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Legal non-prescribed drugs have a greater impact on the health of the population thanillegal drugs. Suggest two reasons why |
any two from: • more people take / use legal /non-prescribed drugs • legal / non-prescribed drugsare (more) readily available • alcohol causes liver/braindamage or tobacco causes cancer |
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Drugs change chemical processes in a person’s body. Why is it difficult for a person to stop taking certain drugs? |
addiction / dependency |
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Plants respond to different environmental factors. Describe how different environmental factors affect: the direction of growth of roots the direction of growth of shoots. In your answer you should refer to the role of plant hormones. Do not refer to the artificial use of plant hormones by gardeners or scientists |
environmental factors • light • (direction of the force of) gravity • moisture / water effects on direction of growth • shoots grow upwards • shoots grow towards light • shoots grow against (the force of) gravity ... |
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QUESTION 5 CONTINUED |
... • roots grow downwards • roots grow towards moisture • roots grow towards (the force of) gravity hormone • reference to auxin • unequal distribution of hormone causes unequal growth (rates) |
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Antibiotics can be used to protect our bodies from pathogens
What is a pathogen? |
microorganism / bacteria / virus /fungus that causes (infectious)disease |
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Bacteria may become resistant to antibiotics. How can doctors reduce the number of bacteria that become resistant to antibiotics? |
reduce / stop use of (current)antibiotics (reduce / stop use) for non serious/ mild / viral infections |
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Which temperature would be most suitable for growing bacteria in industrial conditions? |
40 ºC |
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What is the advantage of using this temperature? |
any one from: • microorganisms grow /reproduce / work / act faster • results / product acquiredsooner |
