Practise

Question bank

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

12 questions

SA-OB-DO-0011 markL1 FoundationCalculatorDiffusion

Diffusion is the net movement of particles

Salam Academy Original Practice · Proposed mark scheme

SA-OB-DO-0021 markL1 FoundationCalculatorOsmosis

Osmosis is the movement of

Salam Academy Original Practice · Proposed mark scheme

SA-OB-DO-0121 markL1 FoundationCalculatorDiffusion

Diffusion requires

Salam Academy Original Practice · Proposed mark scheme

SA-OB-DO-0031 markL2 StandardCalculatorOsmosis

A plant cell placed in pure water becomes

Salam Academy Original Practice · Proposed mark scheme

SA-OB-DO-0041 markL2 StandardCalculatorOsmosis

A red blood cell placed in a concentrated salt solution will

Salam Academy Original Practice · Proposed mark scheme

SA-OB-DO-0051 markL2 StandardCalculatorDiffusion

Which would increase the rate of diffusion?

Salam Academy Original Practice · Proposed mark scheme

SA-OB-DO-0062 marksL2 StandardCalculatorOsmosis data

A potato cylinder's mass changes from

4.0

g to

4.6

g. Calculate the percentage change.

Salam Academy Original Practice · Proposed mark scheme

SA-OB-DO-0072 marksL2 StandardCalculatorOsmosis data

A potato cylinder's mass changes from

5.0

g to

4.2

g. Calculate the percentage change.

Salam Academy Original Practice · Proposed mark scheme

SA-OB-DO-0081 markL2 StandardCalculatorOsmosis

In a plasmolysed cell

Salam Academy Original Practice · Proposed mark scheme

SA-OB-DO-0091 markL2 StandardCalculatorDiffusion

Oxygen moves from the alveoli into the blood by

Salam Academy Original Practice · Proposed mark scheme

SA-OB-DO-0101 markL2 StandardCalculatorOsmosis data

Potato cylinders show no change in mass in a sugar solution. This means

Salam Academy Original Practice · Proposed mark scheme

SA-OB-DO-0111 markL3 ExamCalculatorOsmosis

Two cells are touching. Cell A has a higher water potential than cell B. Water moves

Salam Academy Original Practice · Proposed mark scheme