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BH 5th Grade-Cells
Chapter 1
| Term | Definition |
|---|---|
| Cells | the basic units of all living things |
| Organelles | these structures work together to help the cell function. |
| Mitochondria | produces energy in the cell |
| Vacuoles | store water, food and waste in the cell- are much larger in plant cells for food storage. |
| Ribosomes | help the cell to make proteins |
| Cilia | are tiny hairs attached to the cell membranes of certain types of cells. |
| Cell membrane | surrounds the cell and controls the movement of materials into and out of the cell |
| Cytoplasm | is a jellylike fluid that fills all of the cell except the nucleus |
| Nuclear membrane | surrounds the nucleus and keeps it separate from the rest of the cell and controls the flow of materials in and out of the nucleus |
| Nucleus | the control center of the cell |
| Robert Hooke | an English Physicist and biologist who was the first to observe and name cells using a compound microscope |
| Paramecium | a single celled organism found on pond water |
| Chloroplasts | the organelles that enable plants to make food and contain chlorophyll which give plants their green color |
| Cell wall | a wall that protects the plant cell and gives the plant its rigid shape. |
| Cell Theory | Improvements in the microscope made it possible for scientists to identify cells and thier functions which led to the acceptance of cell ideas or theories. |
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BH 5th Grade
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