Cell Transport.

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Presentation transcript:

Cell Transport

https://www.youtube.com/watch?v=Xscn-QSmFo4

Types of Transport Active Transport: Requires Energy Passive Transport: Does NOT Require Energy

Passive Transport Simple Diffusion: The process of molecules spreading from an area of high concentration to an area of low concentration When molecules are spread even throughout a space it is called equilibrium

Passive Transport Concentration Gradient: The difference between concentrations in a space. Semi-Permeable membrane allows some things through and not others. Ex: Plasma Membrane

Move independently of each other

AND Type of Molecule

Passive Transport Facilitated Diffusion: The movement of particles to large to move through the membrane through a carrier protein.

Passive Transport Osmosis: The diffusion of water across a membrane. https://www.youtube.com/watch?v=Ptmlvtei8hw

Passive Transport Hypotonic Hypertonic

How much SOLUTE is on each side of the membrane? Passive Transport Types of Solutions: Isotonic How much SOLUTE is on each side of the membrane? ISO=Same

How much SOLUTE is in the cell compared to the beaker? Passive Transport Types of Solutions: Hypotonic 90% Water ___% Salt How much SOLUTE is in the cell compared to the beaker? 10% Water ___% Salt HYPO=LESS

How much SOLUTE is in the Beaker compared to the Cell? Passive Transport Types of Solutions: Hypertonic 10% Water ___% Salt How much SOLUTE is in the Beaker compared to the Cell? 90% Water ___% Salt HYPER=MORE

https://www.youtube.com/watch?v=OYoaLzobQmk

Think about it… Placing wilted lettuce in cold water will make it crisp again. Which statement best describes what happens to restore the lettuce to its original condition? A Water left the lettuce cells by diffusion. B Water entered the cells of the lettuce by osmosis. C Osmosis caused salts to enter the lettuce cells. D Salts in the leaf caused water to leave the cells. https://www.youtube.com/watch?v=OYoaLzobQmk

Active Transport Requires Energy

Active Transport High Concentration!! Low Concentration!!

https://www.youtube.com/watch?v=xweYA-IJTqs

Active Transport Endocytosis https://www.youtube.com/watch?v=mv6Ehv06mXY

https://www.youtube.com/watch?v=Z_mXDvZQ6dU

Active Transport Exocytosis https://www.youtube.com/watch?v=Ptmlvtei8hw

https://www.youtube.com/watch?v=kIPYVV4aThM