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Cellular transport

Diffusion and Osmosis

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Learn about the key factors that affect diffusion and the principles of osmosis. Understand terms such as concentration gradient, water potential, and tonicity.

Learning outcomes

  • Explore the effect of various factors on the rate of diffusion
  • Work through a molecular view of an osmosis experiment
  • Identify the key differences between diffusion and osmosis
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Skills

Concepts, Principles and Theories

  • How concentration, molecule size and temperature affect the rate of diffusion 
  • What is meant by diffusion, osmosis, solute, solvent and water potential
  • How solute concentration relates to water potential and the movement of water molecules
  • How the relative solute concentration can be described in terms of tonicity
  • What similarities and differences define diffusion and osmosis 
  • Where examples of diffusion and osmosis occur in real life

Learn more about our approach to skills
Dr Samuel Egieyeh
University of the Western Cape

"The Learning Science platform, with its interactive animations, provides the students with a basic understanding of the central dogma of molecular biology and provides the link between the basic biotechnology experiments and the complex production process, formulation, and quality control of biologics."

Details

Degrees

Biomedical science
Biological science
Pharmacological science
Forensic science
Biochemistry

Modules

Tissue & cell biology

Topic

Cellular transport

Purchase option

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