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week7physio
weeks 1-6
| Term | Definition |
|---|---|
| membrane potential | difference in electrical charge across the plasma membranes |
| four major groups of organic substances | 1) Carbs 2) lipids 3) proteins, 4) Nucleic acids and related molecules |
| monosaccharides | simple sugars |
| Osmosis | passive transport of water through a selectively permeable membrane in the presence of at least one impermeant solute |
| Simple diffusion | movement of particles through the phosolipid bilayer from an area of higher concentration to an area of lower concentration |
| Endocytosis | plasma membrane "traps" some extracellular material and brings it into the cell |
| allosteric effector | a molecule or other agent that alters enzyme function by changing its shape |
| cytokinesis | the plasma membrane of the parent cell "pinches in" and eventually separates the cytoplasm and two daughter nuclei into two genetically identical daughter cells |
| meiosis | cell division that only occurs in primitive sex cells during the process of becoming mature sex cells |
| atrophy | decrease in cell size |
| hypertrophy | increase in cell size |