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vocab. 3
| Term | Definition |
|---|---|
| Cell | basic unit of life |
| Cell theory | theory that states that all organisms are made of cells, all cells are produced by other living cells, and all living things must carry out life functions by cells |
| Organelle(s) | membrane-bound structure that is specialized to perform a distinct process within a cell |
| Organism | any individual living thing |
| Cytology | the branch of biology concerned with the structure and function of plant and animal cells. |
| Nucleus | controls most of the cells actives |
| Diffusion | movement of dissolved molecules in a fluid or gas from a region of higher concentration to a region of lower concentration |
| Osmosis | an area of higher water concentration to an area of lower water concentration |
| Active transport | energy requiring movement of molecules across a membrane from a regionof lower concentration to a region of higher concentration |
| Phagocytosis | (“cell eating”) taking in large, undissolved particles into vacuole(s) |
| Pinocytosis | (“cell drinking”) taking in large, dissolved molecules |
| Semi-permeable | allowing certain substances to pass through it but not others, especially allowing the passage of a solvent but not of certain solutes. |
| Mitochondria | supplies energy to the cell |
| Ribosome(s) | (“small dots”) site of protein syntheis |
| Cell wall | rigid structure that gives protection,support, and shape to the plant cell |
| Viruses | infectious particle made only of a strand of either DNA or RNA surroundeed by a protein coat |
| Centriole(s) | help cells to divide |
| Chloroplast(s) | traps sunlight (where photosynthesis occurs) |
| Phylum | organisms possessing same body make up |
| Endoplasmic reticulum | usage of channels or canals to transport materials within the cell |
Created by:
Katherine Acotsa
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