KIVO Med
Membrane transport
Understand how a selective membrane organises passive, active, vesicular and epithelial exchange.
- 20 explained questions
- 19 flashcards
- 102 estimated course minutes
Updated
What you will learn
- Distinguish simple diffusion, facilitated diffusion, osmosis and filtration.
- Relate concentration and electrochemical gradients to membrane fluxes.
- Explain primary and secondary active transport, including the Na+/K+-ATPase and SGLT symport.
- Describe vesicular transport and transepithelial pathways.
Course outline
A membrane that sorts exchange
Build an overall map of exchange between a cell and its environment.
14 min
Diffusing without spending ATP
Distinguish simple diffusion, carriers and protein channels from the gradients that drive them.
20 min
Osmosis, osmolarity and tonicity
Predict water movement and the effect of a solution on cell volume.
18 min
Pumps and coupled gradients
Explain how ATP or an ion gradient moves a solute across its concentration gradient.
16 min
Vesicles for large cargo
Distinguish exocytosis, the forms of endocytosis and transcytosis.
18 min
Crossing a polarised epithelium
Follow a solute through a transport epithelium, from a lumen to extracellular fluid or in the reverse direction.
16 min
Study and practise with KIVO Med
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