Lipids, Membranes, and Membrane Transport
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | FALSE: often unsaturated
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| show | Lipids
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| show | FALSE: Membrane composition varies. Ex. Phospholipids are made of 60 red blood cell while cholesterol is made of 23
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| show | NO
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| Micelles | show 🗑
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| What doesmulsifying agents do? | show 🗑
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| show | polar heads face water and nonpolar hydrocarbon tails entwining together
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| show | two-dimensional fluids
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| show | They rotate rapidly about lipid axis; diffuse rapidly in the membrane's plane; 3) Flip flow slowly
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| Flippase | show 🗑
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| show | vital for cellular functions; such as endocytosis, exocytosis
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| At normal temperatures, cells membranes are fluid r solid? | show 🗑
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| Why is cooling cells to 0-4 C bad? | show 🗑
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| show | 1) Alter length of lipid tails (all) 2) Alter saturation of lipid tails (all) 3)cholesterol (animals)
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| show | Decrease
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| Which have more fluid, short fatty acid or long fatty acid? | show 🗑
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| show | Unsaturated - they have lower melting points.
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| What does cholesterol do to membrane? | show 🗑
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| show | No, they are assymetrically distributed
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| show | As much as 70%
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| Name the kinds of protein in the membrane? | show 🗑
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| Peripheral membrane proteins | show 🗑
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| Integral membrane proteins | show 🗑
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