Membrane Transport Lion Den Slide Collection By Kevin Patton User Manual Click each slide to advance it

Passive Transport Requires no metabolic energy provided by the cell

Solute Solvent HIGH concentration LOW concentration Concentration gradient SAME concentration SAME concentration Equilibrium Solution NET movement Diffusion reduces or eliminates a concentration gradient Diffusion reduces or eliminates a concentration gradient Collisions of particles spread the particles out Collisions of particles spread the particles out

HIGH concentration LOW concentration Concentration gradient Simple diffusion is passive movement of solutes through a membrane Simple diffusion is passive movement of solutes through a membrane

SAME concentration SAME concentration Equilibrium NET movement Net diffusion down the concentration gradient may result in equilibrium (a dynamic balance of concentration) Simple diffusion is passive movement of solutes through a membrane Simple diffusion is passive movement of solutes through a membrane

HIGH concentration LOW concentration Concentration gradient Channel

SAME concentration SAME concentration Equilibrium NET movement

Channel HIGH concentration LOW concentration Concentration gradient GATED channel GATED channel Channels are SPECIFIC Channels are SPECIFIC GATED channels GATED channels Channels FACILITATE diffusion

HIGH concentration LOW concentration Concentration gradient NO net movement Impermeant Solute Impermeant Solute Impermeant solutes cannot cross the membrane

Aquaporins are tiny channels that facilitate water movement

Impermeant Solute Impermeant Solute Water molecule LOW concentration HIGH concentration WATER gradient SAME concentration Osmosis is passive movement of water when solutes are impermeant Osmotic pressure builds up as water moves into cell

SAME concentration SAME concentration Equilibrium NET movement HIGH concentration LOW concentration Concentration gradient Carrier

Carriers FACILITATE diffusion HIGH concentration LOW concentration Concentration gradient

Carrier Carriers FACILITATE diffusion HIGH concentration LOW concentration Concentration gradient

HIGH concentration LOW concentration Concentration gradient Carrier Channel Channels & carriers FACILITATE diffusion

Active Transport Requires metabolic energy (in the form of ATP) provided by the cell

ATP ADP PiPi PiPi Pump Pumps are ACTIVE carriers Pumps are ACTIVE carriers LOW concentration HIGH concentration Concentration gradient

ATP ADP PiPi PiPi Pump Pumps are ACTIVE carriers Pumps are ACTIVE carriers LOW concentration HIGH concentration Concentration gradient Pumps create & maintain a concentration gradient Pumps create & maintain a concentration gradient

Vesicle-mediated transport Bulk transport of material Requires work by the cytoskeleton

Endocytosis moves material into the cell Endocytosis moves material into the cell

Endocytosis moves material into the cell Endocytosis moves material into the cell Cytoskeleton moves the plasma membrane Cytoskeleton moves the plasma membrane ATP ADP PiPi PiPi

Cytoskeleton moves the plasma membrane Cytoskeleton moves the plasma membrane

Cytoskeleton moves the plasma membrane Cytoskeleton moves the plasma membrane

Vesicle forms as membrane folds inward Vesicle forms as membrane folds inward

Vesicle forms as membrane folds inward Vesicle forms as membrane folds inward

Vesicle forms as membrane folds inward Vesicle forms as membrane folds inward Vesicle forms as membrane folds inward and is pulled inward by the cytoskeleton Vesicle forms as membrane folds inward and is pulled inward by the cytoskeleton

Pinocytosis moves fluids into the cell Pinocytosis moves fluids into the cell ATP ADP PiPi PiPi

Pinocytosis moves fluids into the cell Pinocytosis moves fluids into the cell

Pinocytosis moves fluids into the cell Pinocytosis moves fluids into the cell

Pinocytosis moves fluids into the cell Pinocytosis moves fluids into the cell

Pinocytosis moves fluids into the cell Pinocytosis moves fluids into the cell

Pinocytosis moves fluids into the cell Pinocytosis moves fluids into the cell

Phagocytosis moves solids into the cell Phagocytosis moves solids into the cell

Phagocytosis moves solids into the cell Phagocytosis moves solids into the cell ATP ADP PiPi PiPi

Phagocytosis moves solids into the cell Phagocytosis moves solids into the cell

Phagocytosis moves solids into the cell Phagocytosis moves solids into the cell

Phagocytosis moves solids into the cell Phagocytosis moves solids into the cell

Phagocytosis moves solids into the cell Phagocytosis moves solids into the cell

Phagocytosis moves solids into the cell Phagocytosis moves solids into the cell

Exocytosis moves material out of the cell Exocytosis moves material out of the cell ATP ADP PiPi PiPi

Exocytosis moves material out of the cell Exocytosis moves material out of the cell

Exocytosis moves material out of the cell Exocytosis moves material out of the cell

Exocytosis moves material out of the cell Exocytosis moves material out of the cell

Exocytosis moves material out of the cell Exocytosis moves material out of the cell

Exocytosis moves material out of the cell Exocytosis moves material out of the cell

Exocytosis moves material out of the cell Exocytosis moves material out of the cell