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10 Cards in this Set
- Front
- Back
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How does bulk transport work?
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Cell membrane sections are invaginated to take in large amounts, or vesicles fuse with the cell membrane to push out its contents.
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What membrane maintaining process is aided by bulk transport?
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Membrane recycling
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What moves vesicles to the cellular membrane for exocytosis?
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Motor proteins and/or Ca+
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What compounds help cellular membranes to invaginate during endocytosis? And how?
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Clathrin or caveolin proteins. They coat a section of the inner membrane, pulling it inward and ultimately coating the vesicle that is formed.
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What mechanism controls bulk transport, to prevent overloading of cellular processes?
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Receptor regulation.
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How does simple diffusion work?
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Compounds move across the membrane either directly, or through channel proteins, ALONG A CONCENTRATION GRADIENT
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How does facilitated diffusion work?
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More active channel proteins give compounds a boost across the membrane, ALONG A CONCENTRATION GRADIENT
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How does active transport work?
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Transport proteins move compounds AGAINST A CONCENTRATION GRADIENT, at an energy cost.
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How does secondary active transport work?
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Two compounds are moved at once through a transport protein.
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What are the 4 types of transport protein?
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Symporters
Antiporters Uniporters |
