Term
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Definition
| Random motions of molecules or ions from greater concentration to lesser concentration. |
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Term
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Definition
| The certain solutes that are allowed to enter or leave the cell, either through channels or carriers composed of proteins. |
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Term
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Definition
| Reactions are carried out on the interior surface of the plasma membrane using the enzymes attached. |
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Term
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Definition
| Receptor proteins that detect chemical messages in membrane. |
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Term
| Cell-Surface Identity Markers |
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Definition
| Markers that identify cells to other cells. |
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Term
| Cell-To-Cell Adhesion Proteins |
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Definition
| Proteins that help glue cells to each other either by temporary or permanent bonds. |
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Term
| Attachments to the Cytoskeleton |
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Definition
| Surface proteins which are used to interact with other cells are anchored to the cytoskeleton by linking proteins. |
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Term
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Definition
| Movement in and out of the cell without the cell expending energy. |
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Term
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Definition
| Process of diffusion mediated by a membrane protein |
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Term
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Definition
| Hydrophilic interior that provides aqueous channel for polar molecules to pass through |
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Term
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Definition
| Bind specifically to the molecule they assist |
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Term
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Definition
| Channels are carriers are selective for one type of molecule only |
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Term
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Definition
| Allow for ions to pass through because of a hydrated interior and depends on concentration. |
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Term
| Integral Membrane Proteins |
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Definition
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Term
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Definition
| Movement of water across membranes; diffusion of water across a gradient, toward a higher solute concentration. |
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Term
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Definition
| Property of a solution that takes into account all dissolved solutes in the solution. When water moves from the solution with lower osmotic concentration to the solution of higher osmotic concentration to balance it out. |
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Term
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Definition
| Solution with higher concentration |
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Term
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Definition
| Solution with lower concentration |
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Term
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Definition
| Solutions with the same osmotic concentration |
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Term
| Solute Crossing Bilayer Depends On |
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Definition
1) Size and Charge (Simple Diffusion)
2) Channel or carrier (Facilitated Diffusion) |
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Term
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Definition
| Specialized channels for water |
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Term
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Definition
| Force need to stop osmotic flow |
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Term
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Definition
| Describes the direction of H20 Movement into/out of the cell in response to concentration of solute in solution. |
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Term
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Definition
| Internal hydrostatic pressure |
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Term
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Definition
| Process that requires the expenditure of energy, typically from ATP as well as the use of protein to transport substances up their concentration gradient. |
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Term
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Definition
| Carrier proteins that transport a single type of molecule |
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Term
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Definition
| Carrier proteins that transport two molecules in the same direction. |
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Term
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Definition
| Carrier proteins that transport 2 molecules in opposite directions. |
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Term
| Primary Transport Vs. Secondary Transport |
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Definition
| Primary transport directly uses ATP, while in secondary transport no direct use of ATP occurs. |
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Term
| Primary Active Transport (Sodium-Potassium Pump) |
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Definition
| Sodium and Potassium use antiporters (consumes ATP), move against gradients, and takes Na cation out and pulls in K cation. |
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Term
| Secondary Transport (Coupled Transport) |
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Definition
| The energy released as one molecule moves down its concentration gradient is capture and used to move a different molecule against its gradient. |
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Term
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Definition
| Plasma membrane envelops food particles and fluids. |
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Term
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Definition
| The material taken in is particulate such as an organism is particulate or some other type of organic matter. |
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Term
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Definition
| The material taken in is liquid |
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Term
| Receptor Mediated Endocytosis |
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Definition
| Membrane bound protein in a receptor for a target molecule. Indented pit that only closes over (using the protein clathrin) into something similar to a vesicle once right molecule enters. |
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Term
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Definition
| The discharge of vesicles at the cell surface. |
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Definition
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