Term
| Fluid Mosaic Model contends that membranes consist of |
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Definition
| Phospholipids (Bilayer) and Globular Proteins (Lipid Bilayer) |
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Term
| 4 components of the cellular membrane |
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Definition
| Phospholipid Bilayer, Transmembrane Proteins, Iinterior Protein Network, Cell Surface Markers |
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Term
| Which microscope can you view a cell membrane with? |
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Definition
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Term
| Phospho Lipid structure consists of |
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Definition
| 1 Glycerol, 2 Fatty Acids (Attached to the Glycerol), one Phosphate group (Attatched to the Glycerol) |
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Term
| Fatty Acids are nonpolar chains that are made of |
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Definition
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Term
| Fatty acids nonpolar nature makes them |
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Definition
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Term
| The phosphate groups Polar nature makes them |
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Definition
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Term
| Fatty acids are located where on the bilayer? |
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Definition
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Term
| The phosphate group is located where on the bilayer? |
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Definition
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Term
| Cold temperatures and Saturated fats make the cell membrane ___ Fluid than Unsaturated fats and Warm temperatures |
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Definition
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Term
| Membrane proteins have 6 functions: |
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Definition
| Transporters, Enzymes, Cell Surface Receptors, Cell Surface Identity Markers, Cell to Cell adhesion proteins, Attatchments to the cytoskeleton |
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Term
| Peripheral Membrane Proteins are consisted of nonpolar regions that attatch themselves to one layer of |
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Definition
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Term
| Integral Membrane Proteins span the lipid bilayer, so they are called |
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Definition
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Term
| Integral proteins possess at least on transmembrane domain, which contains hydro___ amino acids |
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Definition
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Term
| B-Sheets in the protein form a cylinder called a B-Barrel which is polar. This barrel therefor allows water to |
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Definition
| Pass through the membrane |
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Term
| Passive transport is movement of molecules through the membrane in which |
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Definition
| No energy is required, instead molecules move in response to a concentration gradient |
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Term
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Definition
| Movement of molecules from high concentration to low concentration |
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Term
| Selective permeability is a(n) |
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Definition
| Integral membrane protein that allows the cell to be selective about what passes through a membrane |
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Term
| Channel proteins have a ___ Interior allowing ___ molecules to pass through |
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Definition
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Term
| Carrier proteins bind to a ___ molecule to facilitate its passage |
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Definition
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Term
| Channel proteins include ___ channels, and ___ channels |
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Definition
| Ion channels, and Gated channels |
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Term
| Carrier proteins do what? |
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Definition
| Bind to a molecule that they transport across the membrane |
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Term
| Facilitated diffusion is the movement of a molecule from high concentration to low concentration with the assisstance of ___ and is __ and __ |
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Definition
| A carrier protein, specific, passive |
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Term
| In an aqueous solution, water is the ___ and dissolved substances are the ___ |
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Definition
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Term
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Definition
| Movement of water from high concentration to low concentration (Movement of water to an area of high solute concentration) |
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Term
| When 2 solutions have different osmotic concentrations the ___ solution has a higher solute concentration, while the ___ solution has a lower solute concentration |
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Definition
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Term
| Osmosis moves water through ___ toward the hypertonic solution |
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Definition
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Term
| Cells use these 3 ways of maintaining osmotic balance |
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Definition
| Extrusion (Water is ejected through contractile vacules), Isosmotic Regulation (Keeping cells isotonic with their environment), Turgor Pressure (pushes cell membrane against the wall to keep cell rigid) |
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Term
| Active Transport requires energy (ATP) and moves substances from ___ to ___ concentration with the assistance of ___ |
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Definition
| Low to High, Carrier Proteins |
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Term
| The three carrier proteins used in active transport are |
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Definition
| Uniporters (Move one molecule at a time), Symporters (Move two molecules in same direction), and Antiporters (Move two molecules in seperate directions) |
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Term
| Na+-K+ pump uses which carrier protein |
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Definition
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Term
| Coupled transport uses which carrier protein to move glucose against a concentration gradient |
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Definition
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Term
| Bulk Transport is accomplished with |
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Definition
| Endocytosis (Movement of Substances into a cell), and Exocytosis (Movement of materials out of a cell) |
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Term
| Endocytosis occurs when the plasma membrane envelops a certain food partical or liquid. It can happen in 3 ways |
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Definition
| Phagocytosis (The cell takes in particulate matter), Pinocytosis (Cell takes in only liquid), and Receptor-mediated Endocytosis (Specific molecules are taken in after they bind to a receptor) |
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