Bio (quiz 2)

• Hypertonic Solution


  Has more solutes
• Hypotonic Solution


  Has fewer solutes
• Isotonic Solution


  Has the same concentrationb of solutes
• Osmosis


  Movement of water through a semipermeable membrane from the hypotonic to hypertonic solution
• Endocytosis


  Cell membrane surrounds particles and pinches off forming a vesicle
• Exocytosis


  Vesicle fuses with cell membrane releasing substances into fluid outside the cell
• Concentrated Gradient 


  Concentration gradient is when there is a difference in concentration of something on two sides of a membrane
• Equilibrium 


  Equilibrium is when there is no net movement of solutes across the membrane usually because concentrations are the same
• Turgidity


  cell swells because of the absorption of high fluid content

  
• Flaccid


  The cell is not plump and swollen, and is drawn away from the cell wall

  
• Plasmolysed


  Cell-cytoplasm is pulled away from the cell wall, cause by a loss of water in the cell

  
• Particle Theory of Matter

  -All substances are made of moving particles.

  -As Temperature increases, Kinetic energy of particles increases
• Diffusion


  -The movement of molecules from an area of high concentration to low concentration

  -The molecules move along their concentration gradient
• Facilitated Diffusion 


  The movement of molecules along a concentration gradient (from high to low concentration) with the use of a protein carrier
• Solution 


  A homogeneous mixture consisting of two parts
• Solute


  The minor component in a solution (The one being dissolved)
• Solvent


  The Major component in a solution (The one doing the dissolving)