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1.3 Transport in cells

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Question 9
F

The table compares three processes that move substances across a cell membrane. Two entries have been replaced by the letters X and Y.

Table: A comparison of the direction of movement in diffusion, osmosis and active transport

ProcessEnergy from respiration neededDirection of movement
DiffusionNoFrom a higher to a lower concentration
OsmosisNoX
Active transportYesY

Which pair of entries completes X and Y correctly?

[1]
A

X = from a dilute to a more concentrated solution, Y = from a higher to a lower concentration

B

X = from a concentrated to a more dilute solution, Y = from a lower to a higher concentration

C

X = from a concentrated to a more dilute solution, Y = from a higher to a lower concentration

D

X = from a dilute to a more concentrated solution, Y = from a lower to a higher concentration

Markscheme

1.3 Transport in cells Questions

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

58 exam-style questions on AQA GCSE Biology 1.3 Transport in cells, covering 1.3.1 Diffusion, 1.3.2 Osmosis, and 1.3.3 Active transport. Each one has a worked solution and a mark scheme showing where the marks go.

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