Term
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Definition
| Phospholipid bilayers with proteins |
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Term
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Definition
| Lateral movement (lateral diffusion) |
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Term
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Definition
-a protein molecule (or assembly of proteins) that is permanently attached to the biological membrane
-A helixes, slight squiggly |
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Term
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Definition
-Proteins that adhere only temporarily to the biological membrane with which they are associated
-Really long and squiggly |
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Term
| Substances Which Diffuse Across Lipid Bilayer |
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Definition
Hydrophobic Molecules = yes. Includes gases like 02, C02, n2.
Small polar particles like water, yes.
Large, a little.
Ions, glucose, sucrose, no. |
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Term
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Definition
| The movement of molecules across a membrane requiring ENERGY to be expanded by the cell. |
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Term
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Definition
Channels, direct diffusion across membrane.
-No external source of energy is required.
- |
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Term
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Definition
| Water exits cell; cell shrivels and becomes plasmolyzed |
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Term
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Definition
| Water enters cell, cell blooms and becomes turgid (normal) |
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Term
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Definition
| 3 Na+ pushed out for every 2 K- sucked in |
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Term
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Definition
| When membrane sucks in particles into vacuoles |
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Term
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Definition
| When vesicle approached plasma membrane and releases contents out |
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Term
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Definition
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