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14 Cards in this Set
- Front
- Back
Cellular membrane
|
*contains the cellular contents
*selects(regulates) what enters and leaves the cell *encases the cell (protection) *semipermeable (selective)allows for certain things to go in and out |
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cytoplasm
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*found inside the cell
*comprised of a gel like substance *contains the cytosol and organelles |
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nucleus
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*controls the functions of the cell
*the "brains" of the cell *contains the nucleolus and chromacin |
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mitochondria
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*power plant of the cell
*produces energy *numbers vary among cells because of metabolic activity of a cell. harder the cell works the greater number of mitochondria |
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ribosomes
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*where creation of protein occurs
*Fixed ribosomes- attached to the endoplasmic reticulum, synthesizes exportable protein for use elsewhere in the body *Free ribosomes- float freely with the cytoplasm, synthesize proteins that are used within the cell |
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endoplasmic reticulum
(referred as ER) |
*network of membranes in the cytoplasm
*Rough ER- fixed ribosomes, on the surface, concerned with protein synthesis *Smooth ER - no ribosomes, concerned with synthesis of lipids (fat) and has no ribosomes |
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Golgi apparatus
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*flat, membrane sac
*depending on the proteins "job" and "destination" sugars are added or removed *Golgi wraps he protein in a membrane *proteins are now secreted from the cell |
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lysosomes
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*housekeepers of the cell
*contains powerful enzymes *breakdown cellular waste (phagocytosis) |
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cytoskeleton
|
*provides cellular shape and support
*comprosed of threadlike structures called microfilaments and microtubules * |
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centrioles
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*paired, rod shaped, and short microtubular
structures *separate chromosomes *contributes to cellular reproduction |
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microvilli
|
moves water across the cellular water
|
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cilia
|
*moves substances across the surface of a cell
*wavelike motions *smoking destroys cilia in the respiratory sysytem |
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flagella
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*whip-like structures
*thick and long *fewer in numbers as compared to cilia |
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cell
|
human and animal
*the structure and functional unit of all living matter *vary in size, shape and funtion |
