1.3 Transport in cells

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Question 3
Medium

An investigator submerged canine erythrocytes (red blood cells) and cells of the filamentous green alga Spirogyra into separate containers of deionised water.

a.

State the direction of net water movement across the cell surface membranes and name the passive transport process involved.

[2]
b.

Explain, with reference to the structural boundaries of these cells, why the canine erythrocytes undergo lysis (bursting) while the Spirogyra cells remain intact.

[2]

1.3 Transport in cells Questions

  1. GCSE
  2. /Biology
  3. /1.3 Transport in cells