| A | B |
|---|
| acid | solution containing a high number of hydrogen ions |
| acid base balance | homeostasis of the hydrogen ion concentration in the body fluids |
| active transport | movement of solutes across membranes:requires the expenditure of energy |
| base | a solution containing a lower number of hydrogen ions |
| diffusion | random movement of particles in all directions through a solution |
| electrolyte | substance that develops an electrical charge when dissolved in water |
| extracellular fluid | fluid outside the cell |
| filtration | transfer of water and solutes through a membrane from a region of high pressure to a region of low pressure |
| fluid volume deficit | abnormally decreased volume of body water |
| fluid volume excess | abnormally increased volume of body water |
| homeostasis | tendency of the biologic system to maintain stabiloty of the internal environment while continually adjusting to changes necessary for survival |
| intracellular fluid | fluid within the cell |
| osmolality | concentration of a solution: it is measured as the number of dissolved particles per kilogram of water |
| osmolarity | concentration of a solution: measured as the number of dissolved particles per liter of solution |
| osmosis | movement of water across a membrane from less concentrated solution to a more concentrated solution |
| selectively permeable membrane | membranes that separate fluid compartments of the body and regulate movement of water and certain solutes from once compartment to another |
