| Term | Definition |
|---|
| Phospholipids | amphipathic material that makes up cell membranes |
| Fluid Mosaic Model | Current model of the cell membrane, Singer and Nicholson |
| Liquid crystal | Organized structure that flows free, changing with temperature |
| Integral protein | Goes through at least part of membrane layer |
| Transmembrane Protein | Goes all the way through the mebrane |
| Peripheral protein | Protein on the outside/edge of the cell membrane |
| Anchoring | Connect microfilaments within the cell, hold cell to the extracellular matrix |
| Passive transport | No energy needed, high to low concentration, Proteins that form channels for selective passage of ions/molecules |
| Active Transport | Requires energy, from low to high concentration, usually a pump, always ATP, Some transport proteins pump solutes across the membrane, enery required |
| Enzymatic action | Membrane0bound enzymes catalyze reactions that take place within/along the membrane surface with these proteins |
| Signal transduction | Receptors bind with signal molecules such as hormones and transmit info into the cell |
| Cell recognition | Glycoproteins functioning as identification tags |
| Intercellular junction | Cell adhesion proteins attach membranes of adjacent cells |
| Diffusion | Movement of particles from high concentration to low concentration, based on temp, concentration, size of molecule and charge |
| Osmosis | Diffusion of water across a membrane |
| Osmotic pressure | Push back from a solution that water is trying to enter |
| Isotonic | Equal levels of solutes, equal movement of water in and out of cell |
| Hypertonic | Greater concentration of solute in solution, the cell would shrivel in this solution |
| Hypotonic | Lesser concentration of solute and greater concentration of water, cell would burst in this solution |
| Turgor pressure | Plants use this property to be able to stand upright, needs water |
| Plasmolysis | Cytoplasm pulls back from cell wall |
| Facilitated transport | Diffusion that requries a helper protein |
| Channel Protein | Helps with diffusion, no shape change |
| Carrier Protein | Helps with diffusion, changes shape to help |
| Bulk Transport | Moving the big stuff |
| Exocytosis | Moving big stuff out of the cell |
| Endocytosis | General term for moving big stuff into cell |
| Phagocytosis | "Cell eating", cell takes in solids |
| Pinocytosis | "Cell drinking" cell takes in liquids |
Combine with other sets
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