Cells-Lesson I
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Created by:
jonihassmann on January 11, 2010
Subjects:
Classes:
anatomy and physiology, Ada Christian Pretest Group
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10 terms
Terms | Definitions |
|---|---|
 cell membrane | A thin layer that surrounds the cell and keeps it together, and controls the substances passing into and out of the cell. |
| cell wall | The stiff outer layer that protects a plant cell and gives it shape. |
| cytoplasm | A watery, jellylike substance that fills a cell and contains the other cell parts. |
| mitochondria | Bean-shaped organelles that break down sugar to produce energy. |
| chloroplasts | A kind of organelle in plant cells that contains chlorophyll, which enables the plant to make its own food. |
| vacuole | A storage space in a cell enclosed by a membrane. |
| nucleus | The control center of the cell, which directs all the cell's activities. |
| chromosomes | A structure in the cell that provides instructions for all the activities and traits of the cell and the organism. |
| nuclear membrane | A membrane that surrounds the nucleus of a cell and controls the materials passing into and out of it. |
| DNA | A complex chemical that contains information about every part of an organism. |
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