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32 Cards in this Set
- Front
- Back
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transprotein |
protein that spreads across the plasma membrane |
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integral proteins |
proteins imbedded in plasma membrane ex; transprotein |
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peripheral proteins |
protein on the outside of the plasma membrane |
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plasma memrane |
phospholipids |
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glycolipid |
lipid with attached sugar(inside) |
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glycoprotein |
sugar with attached protein(inside) |
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glycocalyx |
-"sugar covering" -glycolpids and glycoproteins |
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membrane bound organelles |
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cytoskeleton |
holds all membrane bound organelles -protein fibers |
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extracellular matrix |
protein fibers on the outside of the cell |
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glycolipid |
erythrocytes have glycoipds(a,b) and if there are none then you have o-neg blood |
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difusion |
movement of particles from a high concentration to a low concentration until even -no protein, just rolls trough membrane |
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facilitated diffusion |
using a channel protein to move particles from a high concentration to a low concentration |
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active transport |
movement of particle from a low concentration to a high concentration -ATP needed |
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passive transport |
don't need ATP |
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glycoprotein |
serve as identification tags for both good and bad cells |
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cell theory |
-basic structural and functional unit life -activity of an orgaism depends on both the individual and combined activities of the cell -cells can only arrive from other cells |
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3 main arts of a human cell |
plasma membrane, cytoplasm, nucleus |
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plasma membrane |
the outer boundary of a cell which a its as a semi-permeable membrane |
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cytoplasm |
intracellular fluid packed with organelles, small structures that perform specific cell functions |
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nucleus |
-the organelle that controls cellular activities -typically lies near the cells center |
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extracellular materials |
substances contributing to body mass txt are found outside the cells |
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body fluids (extracellular fluids) |
-includes interstitial fluid, blood plasma, and cerebrospinal fluid. -these fluids are important transport and dissolving media |
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cellular secretions |
substances that aid digestion: intestinal & gastric lubricants: saliva, mucus, serous fluids |
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extracellular matrix |
-most abundant extracellular material -composed of proteins and polysaccharides that create the body's cells glue |
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membrane lipids |
this lipid bilayer forms the basic "fabric of a membrane" |
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phospholipids |
each lollipop shaped phospholipid molecule has a polar head that is charged and is hydrophilic, and an uncharged, nonpolar tail that is made of two fatty acid chains and is hydrophobic |
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glycolipids |
-lipids with attached sugar groups
-found only on the outer plasma membrane surface |
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cholesterol |
20% of membrane is cholesterol |
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tight junction |
series of integral protein molecules in the plasma membranes of adjacent cells fuse together, forming and impermeable junction |
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desmosomes |
serve as anchoring junctions |
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