Passive Transport

• Passive transport is the movement from high concentration to a low concentration
• Passive transport acheives equilibrium: balancing the concentration out and
• Diffusion is the act of solute particles moving to lower concentration
• Osmosis is the movement of water molecules from a region of high water concentration to a region of low water concentration
• Facilitated Diffusion is where larger particles go through protein pumps to go to lower concentration, only specific particles can go through certain pumps
• Passive transport goes with the flow, requiring no energy
• Carrier proteins changes shape as it carries the molecule across the membrane
• Channel proteins move charged and polar molecules through the membrane
• Hypotonic solutions occur when there is low concentration of solutes in the solution compared to the cell, making the cell expand
• Isotonic solutions have perfect concentration gradient inside and outside the cell, so the cell will not expand, nor contract
• Hypertonic solutions has a occur when there is a high concentration outside the cell, making it contract
• The particles move through a semi-permeable membrane
• Equilibrium is the point of which the outside and inside of the cell are relatively the same in terms of concentration