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Midterm Science
Cells
| Question | Answer |
|---|---|
| Robert Hooke | one of first peopole to observe cells |
| Cell theory | all living things are composed of cellsCells are the basic units of structure and function in living thingsAll cells are produced from other cells |
| Cell Wall | rigid layer of nonliving material that surrounds the cells of plants and some other organisms. Cell wall help protect and support the cell. Only found in plant cell |
| Cell Membrane | Controls what substances come into and out of a cell |
| Mitochondria | "powerhouse" of the cell; convert energy in food molecules to energy the cell can use to carry out its functions. |
| Endoplasmic Riticumlum | Passageways that carry proteins and other materials from one part of the cell to another |
| Ribosomes | Function as factories to produce proteins. |
| nucleus | directs all cells activites |
| Chloroplast | capture energy from sunlight and use it to produce food for the cell. (only in plant cell) |
| vacuole | stores water, food, waste and other materials.(one in Plant, many in animal) |
| GolgiBody | receive materials from endoplasmic riticulum and send them to other parts of cell also release material outside cell |
| Lysosme | contain chemicals that break down food particles and worn out cell parts. |
| Diffusion | main method by which small molecules move across the cell membrane |
| Osmosis | Diffusion of oxygen |
| active transport | requires the cell to use its own energy, whil passive transport does not. |
| passive transport | the movement of dissolved miterials through a cell membrane without using cellular energy is called passive transport |
Created by:
dristongalvao
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