Warm up Type of Transport What moves? Solute or Solvent It moves towards an area of higher or lower concentration? Moves Down or up the concentration gradient?

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Presentation transcript:

Warm up Type of Transport What moves? Solute or Solvent It moves towards an area of higher or lower concentration? Moves Down or up the concentration gradient? Does it require Energy? Diffusion Osmosis Facilitated Diffusion

Warm up Type of Transport What moves? Solute or Solvent It moves towards an area of higher or lower concentration? Moves Down or up the concentration gradient? Does it require Energy? Diffusion Solute To Lower Concentration Down the Concentration Gradient NO ENERGY Required Osmosis Solvent To Higher Concentration Up the Concentration Gradient NO ENERGY Required Facilitated Diffusion Solute To Lower Concentration Down the Concentration Gradient NO ENERGY Required

ACTIVE TRANSPORT Chapter 5 pg

Active Transport Requires energy! Molecules move from an area of low concentration to an area of high concentration Move against the concentration gradient

1. Membrane pumps

Pumps – Transport proteins that use energy – (low  high) Protein transfers the molecule to the other side. Sodium-Potassium Pump: transports Na+ and K+ against (not down) gradient

2. Endocytosis Bring large molecules into cell 1.Material is engulfed by cell membrane. 2.Membrane makes a pouch. 3.Pouch then pinches off and makes a vesicle. 4.Vesicle binds with lysosome.

2. Endocytosis Phagocytosis: A form of endocytosis in which immune cells attack and kill bacteria

3. Exocytosis Moving large particles out of the cell (the reverse of endocytosis) Draw This

1.Finish Grape Lab 2.Finish “Transport Review” DUE MONDAY Grape Lab Transport Review Cell Chosen Chart (on model directions)