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 94 of 137 · choose a topic above to narrow them down

SA-AB-BG-0021 markL2 StandardCalculatorHormones

Glucagon raises blood glucose by stimulating

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SA-AB-BG-0031 markL2 StandardCalculatorHormones

Insulin increases glucose uptake into muscle cells by

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SA-AB-BG-0041 markL2 StandardCalculatorSecond messengers

In the glucagon cascade, the second messenger is

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SA-AB-CA-0021 markL2 StandardCalculatorCalvin cycle

CO₂ combines with RuBP to form

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SA-AB-CA-0031 markL2 StandardCalculatorCalvin cycle

GP is reduced to triose phosphate using

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SA-AB-CA-0041 markL2 StandardCalculatorCalvin cycle

How many turns of the Calvin cycle are needed to make one hexose?

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SA-AB-CC-0021 markL2 StandardCalculatorControl and ECGs

One cardiac cycle takes 0.80 s. Calculate the heart rate (bpm).

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SA-AB-CC-0031 markL2 StandardCalculatorStructure

The left ventricle wall is thicker than the right because it

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SA-AB-CC-0041 markL2 StandardCalculatorCardiac cycle

The atrioventricular valves close when

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SA-AB-CC-0051 markL2 StandardCalculatorCardiac cycle

The semilunar valve in the aorta opens when

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SA-AB-CI-0021 markL2 StandardCalculatorVessels

Arteries have elastic tissue to

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SA-AB-CI-0031 markL2 StandardCalculatorVessels

At the arterial end of a capillary, tissue fluid forms because

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SA-AB-CI-0041 markL2 StandardCalculatorHaemoglobin

The S-shaped dissociation curve results from

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SA-AB-CI-0051 markL2 StandardCalculatorHaemoglobin

The Bohr shift moves the curve to the right when

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SA-AB-CL-0021 markL2 StandardCalculatorSugars

Sucrose is made of

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SA-AB-CL-0032 marksL2 StandardCalculatorSugars

Glucose has

M_r

180. Calculate

M_r

of maltose.

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SA-AB-CL-0041 markL2 StandardCalculatorPolysaccharides

How many water molecules are released when 100 glucose molecules form one unbranched chain?

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SA-AB-CL-0051 markL2 StandardCalculatorPolysaccharides

Cellulose is made of

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SA-AB-CO-0021 markL2 StandardCalculatorMethods

Studbooks are used in zoos to

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SA-AB-CO-0031 markL2 StandardCalculatorMethods

Seeds in seed banks are stored

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