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51 Cards in this Set
- Front
- Back
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A complex barrier separating the cell from its external environment |
Cell membrane |
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Hello so molecules to enter well it keeps others and this is called |
Selective permeability |
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The cell membrane is also called |
Plasma membrane |
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Components of the cell membrane |
Phospholipids Cholesterols Proteins Carbohydrates |
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The membrane is flexible, not rigid. It’s fluid. It has a variety of different molecules and are t |
Fluid mosaic model |
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An art term used to describe a painting made of bits of glass or other objects |
Mosaic |
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Molecules are shaped like a head with two tails The head is polar and forms hydrogen bonds with water The fatty acid tail is nonpolar and repels from water |
Phospholipids |
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Combining many phospholipids in an organism ,which is made mostly of water ,results in the formation of a double layer called the |
Lipid bilayer |
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Means having a charge |
Polar |
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Water moves into the cell at the same rate as it goes out |
Isotonic |
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Helps the membrane remain strong yet flexible |
Cholesterol |
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The particles that make up the bilayer of the cell membrane |
Phospholipid |
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The storage form of energy in a cell |
ATP |
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Two or more substances in a mixture |
Solution |
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Join with proteins to form glycoproteins which act like ID badges |
Carbohydrates |
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The alcoholic portion of the phospholipid |
Glycerol |
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Cells drinking |
Pinocytosis |
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Found in large amounts in a solution |
Solvent |
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The part of the phospholipid that or hydrophobic |
Tails |
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An art term used to describe the cell membrane |
Mosaic |
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Having fewer salute particles in a solution than solvent particles |
Hypotonic |
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Means water loving |
Hydrophilic |
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Cells eating |
Diffusion |
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Another name for the cell membrane |
Plasma membrane |
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Movement of particles from an area of high concentration to an area of low |
Diffusion |
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Type of protein that allows the passage of large particles into and out of the cell |
Transport |
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An active process by which cells release waste and products |
Exocytosis |
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Found in small amounts in a solution |
Solute |
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When the number of molecules on one side of the membrane are the same as the other side it is called |
Equilibrium |
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Type of transport that does not require ATP |
Passive |
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Another name for transport proteins |
Channel |
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The substance that makes up the tails of the phospholipid |
Fatty acid |
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Type of transport that requires energy |
Active |
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Means more strength |
Hypertonic |
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Parts of a phospholipid |
Polar phosphate group Glycerol alcohol Two fatty acid chains |
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A variety of protein molecules are in bedded in lipid bilayer to help move materials into and out of the cell |
Transport or channel proteins Receptor proteins- like a lock and key Marker proteins -help identify cell |
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Other membrane components |
Cholesterol Carbohydrates |
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Selective permeability |
A cellcannot function without things entering and exiting through the cell membrane Somethings can and somethings cannot cross |
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Cellular transport |
Active transport Passive transport |
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Diffusion |
Type of passive transport |
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A difference in concentration of a molecule in a cell or area |
Concentration gradient |
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A special type of diffusion where water moves through the cell membrane |
Osmosis |
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When the w on one side of the membrane is the same as the number on the other side |
Dynamic equilibrium |
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A mixture of two or more substances |
Solution |
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the substance being added |
The solute |
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Solute+ solvent= |
Solution |
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The substance into which the solute is dissolved |
The solvent |
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ISO=same |
Isotonic- some concentration of solute’s and solvent |
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Hyper equals more |
Hypertonic-more solutes and less solvent |
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Hypo equals Less |
Hypotonic- Fewer solutes and less solvent |
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There are three types of what |
Solutions |
