| Term | Definition |
|---|
| Passive Transport | No energy is required |
| Active Transport | The cell must provide metabolic energy |
| Solution | homogeneous mixture of two or more components |
| Intracellular fluid | Cytoplasm |
| Interstitial fluid | fluid on the exterior of the cell |
| Selective Permeability | plasma membrane allows some material to pass while excluding others; into and out of the cell |
| Controls Passive Transport | Concentration Gradient |
| Diffusion | Passive;Particles tend to distribute themselves evenly within a solution |
| Simple Diffusion | Unassisted process; solutes are lipid-soluble or small enough to pass through membrane pores |
| Osmosis | simple diffusion of water |
| Facilitated diffusion | substances require a protein carrier for passive transport |
| 3 types of Diffusion | Simple, Osmosis, Facilitated |
| 2 types of Passive Transport | Diffusion, Filtration |
| Filtration | Water and solutes are forced through a membrane by fluid, or hydrostatic pressure; requires pressure gradient |
| Filtration Organ | Kidney |
| Why not Passive? | too large, unable to dissolve in fat core of membrane, or has to move against concentration gradient |
| 2 types of Active transport | Solute pumping, Bulk transport |
| Solute pumping | active transport where amino acids, some sugars, and ions are transported by solute pumps; uses ATP to energize carrier proteins |
| Types of Bulk Transport | Exocytosis and Endocytosis |
| Types of Endocytosis | Phagocytosis and Pinocytosis |
| Exocytosis | Moves materials out of the cell in membranous vesicle, which migrates to and combines with plasma membrane, then emptied to outside |
| Endocytosis | Extracellular substances are engulfed by being enclosed in a membranous vesicle; opposite exocytosis |
| Phagocytosis | cell eating |
| Pinocytosis | cell drinking |
Combine with other sets
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