IV.3 Membrane proteins + IV.4 Membrane transport fundamentals
7 important questions on IV.3 Membrane proteins + IV.4 Membrane transport fundamentals
What is the fluid mosaic model?
What are the different membrane proteins and what are their functions?
- Integral proteins --> transport of receptor
- Peripheral proteins: inside or outside of the cell membrane --> Allow things to pass through the cell membrane
- Lipid bound protein: in between the cell membrane (very rare)
- Glycoproteins --> Signaling
What is passive transport?
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What is active transport? What are the two types of active transport?
- Primary active
- Secondary active
What is primary active transport? Give an example.
What is secondary active transport? What are the two types?
- Symport
- Antiport
Which proteins are involved in transport? What do they do?
- Defensins: make holes in the membrane
- Gramicidin A: antibiotic - make holes in the membrane
- Valinomycin: carrier for K transport
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