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2.1 Supplying the cell

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Question 18
F

A student places red blood cells into three solutions, A, B and C.

The Figure shows the red blood cells after 30 minutes in each solution.

Figure

image

a.

Identify the solution, A, B or C, that has a higher water potential than the cytoplasm of the red blood cells.

[1]
b.

Explain why the red blood cells in solution C shrink.

[3]
c.

Plant cells are placed in solution B. The plant cells do not burst.

Explain why.

[2]
Markscheme

2.1 Supplying the cell Questions

  1. GCSE
  2. /Biology
  3. /2.1 Supplying the cell

194 exam-style questions on OCR GCSE Biology 2.1 Supplying the cell, covering 2.1.1 Transport across cell membranes, 2.1.2 Mitosis and the cell cycle, 2.1.3 Importance of cell differentiation, and 2.1.4 Stem cells. Each one has a worked solution and a mark scheme showing where the marks go.

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