Cell Organelles
| Description: | Cell organelles and their functions |
| Category: | Biology |
| Created by: | skrebbeks on 2009-01-12 |
| Question | Answer |
| nucleus | directs the cell’s activities |
| cell membrane | “gatekeeper” of the cell; controls what enters and leaves the cell |
| lysosome | contains chemicals that break down food particles for the cell |
| endoplasmic reticulum (ER) | transports proteins and other materials through the cell |
| mitochondrion | “powerhouse” of the cell; produces energy used by the cell from glucose |
| ribosomes | small structures where proteins are produced |
| vacuole | storage sac for water, nutrients, and waste |
| cell wall | a rigid layer of non-living material that surrounds the cell; found in plant and some bacterial cells |
| choloroplast | captures energy from the sun to produce food (glucose) |
| cytoplasm | gel-like material between the cell membrane and the nucleus |
| nucleolus | organelle inside the nucleus where ribosomes are made |
| chromatin (chromosome) | contain the cell’s genetic material |
| Golgi body | receive materials from the ER and packages them for transport within or outside the cell |
| nuclear membrane | protects the cell’s nucleus |
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CELL MEMBRANE- "gate keeper" controls what goes in & out CYTOSKELETON- maintains cell shape LYSOSOMES- digests bacteria VESICLE- membrane-bouned sac CYTOPLASM- gel-like substance between membrane & nucleus NUCLEUS- "The Big Head" directs all cell sctivity NUCLEAR MEMBRANE- double membrane; protects membrane CHROMATIN- produces genetic material NUCLEOLUS- produces subuitsof ribosomes SMOOTH ER- produces lipids (fats) RIBOSOSOMES- protein synthesis ;produces proteins MITICHODRION- "Power House" produces energy GOLGI BODY- processes, packages & modifies cell products DIFFUSION- takes consentration frm high to low levels to distribute evenly. FACILIATED DIFFUSION- acts as tunnels; allows particles to fall through ACTIVE TRANSPORT- goes against concentration ENDOCYTOSIS- brings things into cell EXOCYTOSIS- exspells things from cell OSMOSIS- semi-permable membrane |
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