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life sci lab sg
| Term | Definition |
|---|---|
| prokaryotic cells | lacks nucleus and membrane bound organelles |
| eukaryotic cells | Contain a nucleus and other organelles that are bound by membranes. |
| plasma membrane | A selectively-permeable phospholipid bilayer forming the boundary of the cells |
| ribosomes | makes proteins |
| cytoskeleton | A network of fibers that holds the cell together, helps the cell to keep its shape, and aids in movement |
| nucleus | Control center of the cell, has DNA |
| cytoplasm | A jellylike fluid inside the cell in which the organelles are suspende |
| chloroplasts | Capture energy from sunlight and use it to produce food for the cell |
| mitochondria | Powerhouse of the cell |
| lysosomes | An organelle containing digestive enzymes |
| endoplasmic reticulum | A cell structure that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another. |
| Golgi apparatus | A system of membranes that modifies and packages proteins for export by the cell |
| vacuoles | Cell organelle that stores materials such as water, salts, proteins, and carbohydrates |
| independent variable | The experimental factor that a researcher manipulates |
| dependent variable | The variable being measured, so called because it may depend on manipulations of the independent variable |
| centrioles | Cell organelle that aids in cell division in animal cells only |
| Why is there a precise procedure to take the pulse? For example, you could take it at the neck, use the 6-second count, and multiply by the ten method. | small errors can affect the treatment chosen for the patient |
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