cr science vocabulary 2.3 and 2.4
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Created by:
ScienceinStrats on November 14, 2007
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14 terms
Terms | Definitions |
|---|---|
 Electron Microscope | an instrument that magnifies objects too small to be seen with a light microscope |
| Cytoplasm | the gel-like substance inside the cell membrane that carry out life processes- |
| Organelle | the structures within the cytoplasm that break down food, move waste, and store materials |
| Cell Theory | a major theory of life science: the cell is the basic unit of life; organisms are made up of one or more cells; and all cells come from other cells |
| Ribosome | protein is made |
| Cell Membrane | the selectively permeable outer boundary of a cell that allows food and oxygen to move into the cell and waste to leave it |
| Endoplasmic Reticulum-ER | move materials around within the cell. |
| Chromatin | heredity material , the DNA |
| Cell Wall | in plants, the rigid structure that surrounds a plant cell, supports and protects it. |
| Lysosome | digests wastes |
| Chloroplast | plant cell in which light energy is changed into chemical energy during photosynthesis. |
| Mitochondria | break down food and release energy. |
| Organ | a structure made up of different types of tissue that work together to do a specific job; for example the heart |
| Tissues | groups of similar cells that do the same sort of work |
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