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SLSBio12CellTransKP
SLS Bio 12 Cell Transport KP
| Term | Definition |
|---|---|
| Active Transport | Active transport is the movement of all types of molecules across a cell membrane against its concentration gradient (from low to high concentration). |
| Carrier Protein | Carrier proteins are proteins involved in the movement of large molecules in and out of a cell, down their concentration gradient. |
| Cell Membrane | the semipermeable membrane surrounding the cytoplasm of a cell. |
| Channel Protein | A hollow or pore-containing protein that spans a cell membrane and acts as a conduit for small molecules, such as charged particles (ions). |
| Concentration Gradient | gradual change in the concentration of solutes in a solution as a function of distance through a solution. |
| Diffusion | the spreading of something more widely |
| Endocytosis | A process in which cell takes in materials from the outside by engulfing and fusing them with its plasma membrane. |
| Facilitated Diffusion | Facilitated diffusion is a process of passive transport, with this passive transport aided by membrane proteins. Facilitated diffusion is the spontaneous passage of molecules across a membrane passing through specific transmembrane integral proteins |
| Fluid-Mosaic Membrane Model | All the proteins and carbs and stuff stuck into the plasma membrane |
| Glycolipid | Glycolipids are lipids with a carbohydrate attached. Their role is to provide energy and also serve as markers for cellular recognition. |
| Glycoprotein | any of a class of proteins which have carbohydrate groups attached to the polypeptide chain. |
| Hydrophilic | having a tendency to mix with, dissolve in, or be wetted by water. |
| Hydrophobic | tending to repel or fail to mix with water. |
| Hypertonic | higher solvent concentration inside the cell (water moves out) |
| Hypotonic | lower solvent concentration inside the cell (water moves in) |
| Isotonic | Dynamic Equilibrium |
| Osmosis | a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one. |
| Passive Transport Processes | - A kind of transport by which ions or molecules move along a concentration gradient, which means movement from an area of higher concentration to an area of lower concentration. No ATP used. |
| Phagocytosis | The process of engulfing and ingestion of particles by the cell or a phagocyte (e.g. macrophage) to form a phagosome (or food vacuole), which in turn fuse with lysosome and be digested |
| Phospholipid | a lipid containing a phosphate group in its molecule |
| Phospholipid Bilayer | The lipid bilayer is a thin polar membrane made of two layers of lipid molecules |
| Pinocytosis | the ingestion of liquid into a cell by the budding of small vesicles from the cell membrane. |
| Pressure Gradient | from higher pressure to lower pressure |
| Selectively Permeable | a partially permeable membrane or a differentially permeable membrane, is a membrane that will allow certain molecules or ions to pass through it by diffusion and occasionally specialized "facilitated diffusion" |
| Tonicity | the osmotic pressure or tension of a solution, as in the cells would swell or shrink depending on the tonicity of the environment. |
Created by:
katherine.penhale
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