Term
| body is composed of these elements |
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Definition
-oxygen (65%)
-carbon (18%)
-hydrogen (10%)
-nitrogen (3%) |
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Term
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Definition
-inorganic compounds
-water (75%) cell mall
-electrolytes(acid, base, salts)
-organic compounds |
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Term
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Definition
-2%
-structural
-enzymes
-hormones |
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Term
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Definition
-CH2O
-monosaccharides (glucose)
-disaccharides (sucrose)
-polysaccharides (glycogen) |
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Term
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Definition
| -fats (storage), cholesterol, phosphoslipids (structure) |
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Term
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Definition
-DNA (chromosomes, genetic info)
-RNA (protein synthesis) |
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Term
| cell membrane composed of |
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Definition
| -lipids (amphipathic), proteins, carbohydrates |
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Term
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Definition
-compartmentalization
-regulation of movement of materials from one area to another (selectively permeable)
-provides for intercellular interactions (allows communication and cell-cell recognition sites)
-provides recognition sites for hormones, antibodies, enzymes, etc. |
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Term
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Definition
-chromatin - DNA and protein
-nuclear envelope - membrane surrounding nucleus
-nucleolus - site of RNA synthesis |
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Term
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Definition
-stores genetic material
-involved in cell division (mitosis)
-regulates cellular metabolism and activity of all organelles |
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Term
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Definition
-composed of protein and RNA
-site of protein synthesis |
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Term
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Definition
-membranous network of channels
-located throughout cytoplasm
-continuous with nuclear membrane |
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Term
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Definition
| -provides a channel for communication and transport of substances throughout the cell |
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Term
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Definition
-has multiple ribosomes on surface
-manufactures and transports protein |
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Term
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Definition
| responsible for lipid production and metabolism and calcium storage |
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Term
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Definition
-stacks of flattened sacs
-storage of protein
-packages materials into vesicles or granules for storage and secretion |
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Term
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Definition
-rod shaped
-internal compartments and cisternae |
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Term
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Definition
-cellular respiration
-production of energy from ATP for cellular functions |
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Term
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Definition
| -small hollow tubules of protein tubulin which run throughout cytoplasm |
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Term
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Definition
-supporting network
-conducting channels through which substances pass through the cytoplasm
-structural component of centrioles and cilia |
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Term
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Definition
-cylindrically shaped organelle composed of 9 triplets of MTs
- 2 per cell located near nucleus
-important role in cell division |
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Term
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Definition
| -thin strands of protein which are usually found in bundles |
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Term
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Definition
-provide skeletal support (cytoskeleton of cell)
-associated with contractile activities and cell locomotion (abundant in muscle cells) |
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