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What does Osmosis Depend on?
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Water moves...in osmosis
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Osmotic Pressure

Preparation for Physiology Assessment

QuestionAnswer
What does Osmosis Depend on? The concentration gradient of water
Water moves...in osmosis down a conc gradient
Osmosis is a ____ process and ______energy PASSIVE process and DOES NOT REQUIRE energy
When does osmosis take place? When there is a difference in water concentration between 2 sides of the membrane
What is osmosis? Diffusion of water through a selectively permeable membrane?
What is osmotic pressure? The force that is applied to oppose osmosis
The more impermeable the solute... the greater the osmotic pressure
What does tonicity tell us? Whether the cell will shrink or swell
If you double the concentration of an nondiffusible that is on one side of the membrane the osmotic pressure will... Double
When a solute is able to pass through a membrane... Equilibirum is reached
Water diffuses Towards Solutes
Explain the effect that increasing the Na+ Cl- concentration had on osmotic pressure and why it has this effect? Increased osmotic pressure. The high concentration of molecules in one side of the membrane results in an increased force of water movement to the high concentration side of the membrane which results in an increased osmotic pressure.
The osmotic pressure would be 0 if.. The concentration on both sides of the membrane was equal
If the molecules are able to diffuse through the membrane then what will happen? WHY? Equilibrium is reached & there will be no osmotic pressure change because the molecules diffuse through the membrane pores
Describe one way in which osmosis is similar to simple diffusion both processes are passive which means the molecules diffuse from an area of high concentration to an area of low concentration without the use of energy from the external source.
Describe one way in which osmosis is different to simple diffusion in simple diffusion ions and molecules are transported across the membrane. However in osmosis only solvents (such as water) are being transported through a selectively permeable membrane.
Created by: meunid
 

 



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