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Ch.2-The Cell in Act
Marisa Riggins
| Term | Definition |
|---|---|
| Diffusion | the movement of particles from regions of higher density to regions of lower density |
| Omosis | the diffusion of water through a semipermeable membrane |
| Passive Transport | the movement of substances across a cell membrane without the use of energy by the cell |
| Active Transport | the movement of substances across the cell membrane that requires the cell to use energy |
| Endocytosis | the process by which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell |
| Exocytosis | the process in which a cell releases a particle by enclosing the particle in a vesicle that then moves to the cell surface and fuses with the cell membrane |
| Photosynthesis | the process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to make food |
| Cellular Respiration | the process by which cells use oxygen to produce energy from food |
| Fermentation | the brakedown of food without the use of oxygen |
| Cell Cycle | the life cycle of a cell |
| Chromosomes | in a eukaryotic cell, one of the structures in the nucleus that are made up of DNA and protein; in a prokaryotic cell, the main ring of DNA. |
| Homologous Chromosomes | chromosomes that have the same sequence of genes and th same structure |
| Mitosis | in eukaryotic cells, a process of cell division that forms two new nuclei, each of which has the same number of chromosomes |
| Cytokinesis | the division of cytoplasm of a cell |