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Plants as medicine Activity Activity sheet A Search for the magic bullet questions

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Introduction

Plants as medicine Activity Activity sheet A - Search for the magic bullet questions 1 a) what is a 'magic bullet'? A magic bullet is the perfect drug to cure a disease with no danger of side effects. 2 a) How was malaria treated before the introduction of modern drugs in the 20th Century? Cinchona bark b) Why is malaria more common in marshy areas? Mosquitoes breed there c) What did Edward Stone believe about the cures for diseases? a disease and its cure could be found together d) ...read more.

Middle

Prevention - stops person getting the disease cure - treatment once person has the disease 4 a) Why is it helpful to stain cells before looking at them under the microscope? In nature they are colourless and almost invisible under the microscope 5 a) Why is it important that scientists publish their ideas and learn about the work of others? To prevent unnecessary trials and to enable scientists to build on the work of others b) Why did Ehrlich and his team have to test hundreds of substances to find a treatment for syphilis? ...read more.

Conclusion

c) Why are some antibiotics becoming less effective, so that hospital infections such as MRSA are on the increase? Antibiotic resistance has developed in some strains of bacteria 7 a) which part of a cell controls its growth and development? Nucleus b) What is cancer? Rapidly dividing cells c) What can cause cells to start growing out of control to form a tumour? Damage to DNA by chemicals or radiation (UV, X-rays or gamma rays). d) Why is chemotherapy always likely to have unpleasant side effects? Chemotherapy drugs are effective against cancer cells because they divide rapidly. Normal cells, such as hair follicle cells also divide rapidly and are therefore also likely to be damaged during chemotherapy. ...read more.

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