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17 Cards in this Set
- Front
- Back
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What do phospholipids form when placed in an aqueous solution? |
Phospholipids can spontaneously form self-sealing bimolecular sheets |
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What are the five functions of the membrane? |
1. Define boundaries 2. Protein localization 3. Transport 4. Role in signalling 5. Cell-cell interaction |
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Who discovered the lipid nature of membranes? |
Overton |
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Who was the scientist to theorize that there was a lipid monolayer in the membrane? |
Langmuir |
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Who discovered the membrane was made up of a lipid bilayer? |
Gorter and Grendel |
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Who theorized that the lipid bilayer was encased in protein sheets? |
Dawson and Danielli |
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Who refuted Dawson and Danielli's theory on protein-encased membranes? |
Robertson |
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Who were the first people to present the fluid mosaic model? |
Singer and Nicholson |
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what is the fluid component in the fluid mosaic model? What is the mosaic? |
The fluid component are the lipids; the proteins floating in the lipids are the mosaic component |
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What is present in phosphoglycerides? |
Choline Phosphate Glycerol 2 Fatty Acids |
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What is present in phospholipid sphingolipids? |
Choline Phosphate Sphingosine 1 Fatty Acid |
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What is present in glycolipid sphingolipids? |
Galactose Sphingosine Fatty Acid |
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What do sterols serve as? |
Fluidity buffers |
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How are lipids distributed in the membrane? |
Unequally |
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What are the two types of membrane proteins? |
Integral and peripheral |
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Which proteins are directly embedded into the membrane? |
Integral membranes |
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Which proteins associate with the membrane/proteins embedded in the membrane? |
Peripheral membranes |
