Cambridge IGCSE Biology · 0610
Diffusion, osmosis & active transport
How substances move into and out of cells — the classic exam banker. Answer these 7 exam-style questions and get each one marked against the mark scheme — with the misconceptions it tests. No account needed to start.
Exam-style questions0 / 7 answered
Which of the following best describes diffusion?
Which factor would NOT increase the rate of diffusion?
State three factors that affect the rate of diffusion.5 marks
How sure are you?
We catch common misconceptions, not just marks.
Explain why oxygen diffuses INTO a respiring muscle cell.4 marks
How sure are you?
We catch common misconceptions, not just marks.
A teacher sprays air freshener at the front of the room. Students at the back smell it 40 seconds later. Explain this using ideas about particles.4 marks
How sure are you?
We catch common misconceptions, not just marks.
Command word · DescribeAnswer exactly what this instruction asks for — nothing less scores.
Describe how oxygen reaches a red blood cell as it passes through the lung capillaries. [3 marks]3 marks
How sure are you?
We catch common misconceptions, not just marks.
Define water potential.4 marks
How sure are you?
We catch common misconceptions, not just marks.