How many Mode of action of enzymes questions are there for 9700?

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

How are Mode of action of enzymes 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 Mode of action of enzymes first?

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

← 9700 past papers

9700 · topic questions

Mode of action of enzymes

Biology8 questions

8 past-paper questions on Mode of action of enzymes

9700/23 · May/June 20245 marks
Describe and explain the mode of action of laccase when catalysing the formation of lignin.
Open the full question →
9700/23 · October/November 20244 marks
Biofuels contain alcohols that are produced by the fermentation of sugars derived from crop waste. This waste contains cellulose…
Open the full question →
9700/22 · May/June 20254 marks
Student X stated that acid phosphatases and sorgoleone could be transported out of root hair cells using the same process.…
Open the full question →
9700/22 · May/June 20254 marks
A student suggested that: • a low concentration of toxin may by diagnosed as a negative result instead of a positive result •…
Open the full question →
9700/22 · May/June 20243 marks
Draw labelled and annotated diagrams in the space provided to show how the lock and key hypothesis was used to explain the…
Open the full question →
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…
Open the full question →
9700/22 · May/June 20243 marks
Compare lysozyme and penicillin to show the similarities and differences between these two antibacterial agents.
Open the full question →
9700/23 · May/June 20242 marks
State and explain how the CDK inhibitor in Fig. 5.1 prevents the activity of the CDK molecule.
Open the full question →

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.

Mode of action of enzymes (9700) past-paper questions — marked instantly

These are real Cambridge Biology past-paper questions on Mode of action of enzymes. 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 Mode of action of enzymes 9700 grade boundaries

Frequently asked questions

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