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slscience8
BC Science 8 chapter 1
| Question | Answer |
|---|---|
| bacteria | prokaryotic cells that live almost everywhere on earth |
| cell membrane | Acts like a skin that surrounds the cell. Regulates what enters and leaves the cell |
| cell theory | 1.cell is the basic unit of life 2. all living things are made of cells 3. all cells come from preexisting cells |
| cytoplasm | the clear jelly-like fluid that holds the organelles in the cell. |
| mitochondria | produce energy for the cell through cellular respiration |
| nucleus | the control centre of the cell |
| organelle | the small 'organs' within the cell that carry out life processes |
| vacuole | temporary storage compartments in the cell |
| virus | non-living particles that can reproduce. |
| prokaryotic cell | cells without a membrane bound nucleus. |
| Eukaryotic cell | cells with membrane bound organelles |
| endoplasmic reticulum | network of membrane covered channels |
| ribosomes | manufactures proteins |
| Golgi Body | sorts proteins and packages them |
| lysosome | breaks down food particles and cell waste |
| chloroplast | uses sunlight to create sugar |
| concentration | the amount of a substance in a given space |
| diffusion | the random movement of particles from an area of high concentration to low concentration |
| osmosis | the movement of water from an area of low solute concentration to high solute concentration |