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1.4 Transport across cell membranes

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12
Question 1
F

Oxygen moves into a cell by diffusion. The concentration of oxygen outside the cell is higher than the concentration of oxygen inside the cell.

a.

State what is meant by diffusion.

[2]
b.

Give one substance that moves out of a cell by diffusion.

[1]
c.

Diffusion is described as a passive process. State what is meant by a passive process.

[1]
Markscheme

1.4 Transport across cell membranes Questions

  1. GCSE
  2. /Biology
  3. /1.4 Transport across cell membranes

41 exam-style questions on Edexcel GCSE Biology 1.4 Transport across cell membranes, covering 1.4.1 Transport into and out of cells and 1.4.2 Percentage gain and loss in osmosis. Each one has a worked solution and a mark scheme showing where the marks go.

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