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Practise

Question bank

Original exam-style questions, mapped to your syllabus. Answers are checked for mathematical equivalence and every attempt updates your mastery.

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2730 questions · page 95 of 137 · choose a topic above to narrow them down

SA-AB-CO-0042 marksL2 StandardCalculatorThreats

A population fell from 1200 to 300. Calculate the percentage decrease.

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SA-AB-CO-0051 markL2 StandardCalculatorAgreements

CITES regulates

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SA-AB-CU-0021 markL2 StandardCalculatorOrganelles

The nucleolus

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SA-AB-CU-0031 markL2 StandardCalculatorSecretion pathway

After a protein is made on the RER, it is next transported to the

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SA-AB-CU-0041 markL2 StandardCalculatorProkaryotes and viruses

Which is found in prokaryotic cells?

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SA-AB-CU-0051 markL2 StandardCalculatorProkaryotes and viruses

Bacterial cell walls are made of

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SA-AB-CV-0021 markL2 StandardCalculatorAtherosclerosis

Atherosclerosis begins with

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SA-AB-CV-0031 markL2 StandardCalculatorAtherosclerosis

The enzyme that converts fibrinogen to fibrin is

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SA-AB-CV-0041 markL2 StandardCalculatorAtherosclerosis

A thrombus in a coronary artery can cause

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SA-AB-CV-0051 markL2 StandardCalculatorRisk

High levels of LDL increase CVD risk because LDL

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SA-AB-DG-0021 markL2 StandardCalculatorDigestive enzymes

Endopeptidases

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SA-AB-DG-0031 markL2 StandardCalculatorDigestive enzymes

Disaccharidases such as maltase are found

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SA-AB-DG-0041 markL2 StandardCalculatorDigestive enzymes

Bile salts aid fat digestion by

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SA-AB-DG-0051 markL2 StandardCalculatorAbsorption

Glucose is absorbed from the ileum by

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SA-AB-DI-0021 markL2 StandardCalculatorCrosses

A dihybrid cross between two double heterozygotes (unlinked genes) gives

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SA-AB-DI-0031 markL2 StandardCalculatorCrosses

A test cross of AaBb with aabb gives

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SA-AB-DI-0041 markL2 StandardCalculatorCrosses

Blood group AB is an example of

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SA-AB-DI-0051 markL2 StandardCalculatorCrosses

Haemophilia is more common in males because

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SA-AB-DR-0021 markL2 StandardCalculatorDNA structure

Adenine pairs with thymine by

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SA-AB-DR-0031 markL2 StandardCalculatorReplication

The enzyme that unwinds DNA and breaks hydrogen bonds is

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