2.1.21

Transport in Cells

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Transport in Cells

The three main forms of transport in cells are:

Illustrative background for DiffusionIllustrative background for Diffusion ?? "content

Diffusion

  • Diffusion is the net movement of particles from an area of high concentration to an area of lower concentration.
Illustrative background for OsmosisIllustrative background for Osmosis ?? "content

Osmosis

  • Osmosis is a special case of diffusion where only water molecules move.
  • It requires a partially permeable membrane.
Illustrative background for Active transportIllustrative background for Active transport ?? "content

Active transport

  • Active transport is the net movement of particles against a concentration gradient.
  • Energy is therefore required.

Jump to other topics

1The Nature & Variety of Living Organisms

2Structure & Functions in Living Organisms

3Organism Functions

3.1Respiration

3.2Gas Exchange

3.3Transport

3.4Excretion

3.5Coordination & Response

4Reproduction & Inheritance

5Ecology

6Biological Resources

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