How many Proteins questions are there for 9700?

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

How are Proteins 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 Proteins first?

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

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9700 · topic questions

Proteins

Biology8 questions

8 past-paper questions on Proteins

9700/23 · May/June 20245 marks
Describe the structure of a collagen molecule and the structure of a collagen fibre.
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9700/23 · October/November 20244 marks
Students investigated the composition of the cell wall of leaf cells of thale cress, Arabidopsis thaliana. The students began by…
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9700/23 · May/June 20253 marks
Suggest and explain how the protease produced by S. epidermidis cells prevents the growth of an S. aureus population on human…
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9700/23 · May/June 20253 marks
Descriptions of the structure of melittin are shown in Table 2.1. Complete Table 2.1 by writing the level of protein structure…
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9700/22 · May/June 20253 marks
One desirable feature of artificial blood products, such as artificial red blood cells, is that they should be economical to…
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9700/22 · May/June 20252 marks
Describe features of a haemoglobin molecule that are typical of a globular protein, other than having an approximately spherical…
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9700/23 · May/June 20252 marks
Complete the diagram of the structure of lysine in Fig. 2.1.
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9700/23 · May/June 20242 marks
Osteogenesis imperfecta is a disease that results from a deficiency in collagen. Suggest how a named tissue or structure is…
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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.

Proteins (9700) past-paper questions — marked instantly

These are real Cambridge Biology past-paper questions on Proteins. 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 Proteins 9700 grade boundaries

Frequently asked questions

How many Proteins questions are there for 9700?: This page collects 8 recent Cambridge Biology (9700) past-paper questions tagged to Proteins. Each links straight to instant marking against the official 9700 scheme.
How are Proteins 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 Proteins first?: Start with the free Biology lesson on Proteins, then come back and drill past-paper questions under timed conditions.