Preparation for Physiology Assessment
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| What does Osmosis Depend on? | The concentration gradient of water
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| Water moves...in osmosis | down a conc gradient
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| Osmosis is a ____ process and ______energy | PASSIVE process and DOES NOT REQUIRE energy
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| When does osmosis take place? | When there is a difference in water concentration between 2 sides of the membrane
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| What is osmosis? | Diffusion of water through a selectively permeable membrane?
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| What is osmotic pressure? | The force that is applied to oppose osmosis
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| The more impermeable the solute... | the greater the osmotic pressure
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| What does tonicity tell us? | Whether the cell will shrink or swell
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| If you double the concentration of an nondiffusible that is on one side of the membrane the osmotic pressure will... | Double
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| When a solute is able to pass through a membrane... | Equilibirum is reached
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| Water diffuses | Towards Solutes
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| 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.
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| The osmotic pressure would be 0 if.. | The concentration on both sides of the membrane was equal
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| 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
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| 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.
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| 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.
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To hide a column, click on the column name.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
meunid