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| The semipermeable membrane surrounding the cytoplasm of a cell. |
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| A membrane that will allow certain molecules or ions to pass through it by diffusion. |
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| Tending to repel or fail to mix with water. |
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| "Water loving" Polar groups that are attracted to water. |
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Definition
| The spreading of something more widely. |
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Definition
| Transport of a substance across a cell membrane by diffusion. |
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| A thin membrane made of two layers of lipid molecules. These membranes are flat sheets that form a continuous barrier around cells. |
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| A lipid containing a phosphate group in its molecule. |
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| Found in most body tissues and important in metabolism. |
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Definition
| A conjugated protein having a carbohydrate component. |
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Definition
| A transmembrane protein is a protein that spans the entire biological membrane. |
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| In biochemistry, a receptor is a protein molecule, embedded in either the plasma membrane or the cytoplasm of a cell, to which one or more specific kinds of signaling molecules may attach. |
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Definition
| A protein molecule (or assembly of proteins) that is permanently attached to the biological membrane. |
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Definition
| Proteins that adhere only temporarily to the biological membrane with which they are associated. |
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