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5 Cards in this Set
- Front
- Back
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What is the Plasma Membrane? |
The cell boundary - it controls what enters or leaves the cell |
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What is the Plasma Membrane made from? |
Phospholipids, Proteins & Carbohydrates |
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Why is the Plasma Membrane described as having a fluid-mosaic structure? |
In 1972, the fluid mosaic model is thought to reflect to molecules in the membrane. In the model, phospholipid molecules form a continuous double layer (bilayer). This player is fluid because the phospholipids are constantly moving. Protein molecules are scattered through the layer like tiles in a mosaic. |
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Triglycerides are a type of lipid, describe their structure. |
3 fatty acids attached to one glycerol molecule. The fatty acid molecules have long 'tails' made of hydrocarbons which are hydrophobic (repel water). Tails make lipids insoluble in water. All fatty acids have the same basic structure but the hydrocarbon tail varies. |
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