Pearson Edexcel GCSE (9-1) · Combined Science (1SC0)

Health, disease and the development of medicines: Practice Questions

5 multiple-choice questions marked as you go, and 3 written questions with worked solutions. All on Health, disease and the development of medicines.

8 questions20 marksFree, no account

Question 1

1 mark

During the development of a new antibiotic, why must the drug undergo clinical testing on healthy volunteers before being tested on patients with the disease?

Question 2

1 mark

Antibiotics such as penicillin are effective against bacterial infections but have no effect on viral infections like the common cold. Why is this?

Question 3

1 mark

A patient has a body mass of \(95\text{ kg}\) and a height of \(1.75\text{ m}\). Calculate their BMI and determine if this lifestyle factor increases their risk of cardiovascular disease based on the BMI scale where \(>30\) is obese.

Question 4

1 mark

Which statement best explains why a person with HIV is more likely to develop tuberculosis (TB) compared to a person without HIV?

Question 5

1 mark

The specific immune system produces a secondary response if the same pathogen enters the body again. Which cells are responsible for this rapid response, and what do they do?

Question 6

5 marks

Explain why antibiotics are effective against bacterial infections like tuberculosis but cannot be used to treat viral infections such as HIV, with reference to cellular processes.

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Question 7

6 marks

Explain how the secondary immune response differs from the primary response upon re-exposure to a pathogen, with specific reference to memory lymphocytes and antibody production levels.

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Question 8

4 marks

Describe the stages of the immune response that occur after a person is immunised with an inactive form of a pathogen. In your answer, explain how memory lymphocytes lead to a faster and stronger secondary response if the person is later exposed to the same live pathogen.

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