How many Infectious diseases questions are there for 9700?

This page collects 8 recent Cambridge Biology (9700) past-paper questions tagged to Infectious diseases. Each links straight to instant marking against the official 9700 scheme.

How are Infectious diseases answers marked?

Type or photograph your working and MarkScheme scores it against the real 9700 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.

Where can I learn Infectious diseases first?

Start with the free Biology lesson on Infectious diseases, then come back and drill past-paper questions under timed conditions.

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9700 · topic questions

Infectious diseases

Biology8 questions

8 past-paper questions on Infectious diseases

9700/22 · October/November 20245 marks
P. jirovecii produces an enzyme known as 1,3-β-D-glucan synthase. The enzyme catalyses the synthesis of 1,3-β-D-glucan. The…
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9700/22 · May/June 20244 marks
Apart from being cost effective, suggest and explain the advantages of using the BCG vaccine for the prevention and control of TB.
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9700/23 · October/November 20244 marks
Polio is a highly infectious viral disease. The virus infects the nervous system of humans. The disease can cause total paralysis…
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9700/42 · October/November 20243 marks
Describe the results of the clinical trial data shown in Fig. 3.2.
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9700/23 · May/June 20243 marks
The vector for Zika virus is the mosquito Aedes aegypti. The mosquito feeds on the blood of an infected person and transmits the…
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9700/22 · May/June 20252 marks
Explain how the pathogen named in (a) is transmitted from a person with the disease to a person who is uninfected.
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9700/22 · May/June 20242 marks
Suggest why treating people who have developed HIV/AIDS with ART may help to reduce the number of overall deaths from infectious…
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9700/22 · October/November 20242 marks
In people infected with HIV, the use of ART also helps to reduce transmission of the virus to uninfected people. Outline two…
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Question stems are shortened previews. Open a question to attempt the full version and have it marked.

Worked example

What a lost mark actually looks like

This answer reaches the right coordinates and still drops a mark — the conclusion is stated, but never justified. Examiners pay for the reasoning, not the answer.

MARKED

80%

Strong

M1dy/dx = 3x^2 - 12x + 9M1 earned
M1(x - 1) $(x - 3) = 0$ M1 earned
A1 $x = 1$ or $x = 3$ A1 earned
B1(1, 5) is a maximum and (3, 1) is a minimumB1 not earned

B1 — withheld
You stated the nature of each point correctly, but stated it without justification. This mark needs the reasoning shown — either evaluate the second derivative (d²y/dx² = 6x − 12, giving −6 at $x = 1$ and +6 at $x = 3$ ) or show a sign change of dy/dx either side of each point. An unsupported assertion earns nothing here even when the conclusion is right.

Infectious diseases (9700) past-paper questions — marked instantly

These are real Cambridge Biology past-paper questions on Infectious diseases. Open one, attempt it, then upload your working — MarkScheme grades it against the official 9700 mark scheme so you see exactly where the marks are won and lost on this topic.

Mark your answer →Learn Infectious diseases 9700 grade boundaries

Frequently asked questions

How many Infectious diseases questions are there for 9700?: This page collects 8 recent Cambridge Biology (9700) past-paper questions tagged to Infectious diseases. Each links straight to instant marking against the official 9700 scheme.
How are Infectious diseases answers marked?: Type or photograph your working and MarkScheme scores it against the real 9700 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.
Where can I learn Infectious diseases first?: Start with the free Biology lesson on Infectious diseases, then come back and drill past-paper questions under timed conditions.