Osmosis Flashcards

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1
Q

what is osmosis?

A

The passage of water from a region of higher water potential to lower water potential through a selectively permeable membrane

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2
Q

what is water potential?

A

the pressure created by water molecules

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3
Q

what is a solute ?

A

any substance that is dissolved in a solvent

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4
Q

What is water potential?

A

this is the pressure created by water molecules

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5
Q

what are the standard conditions for water to be zero?

A

water potential is zero when temp. & pressure (25 degrees C & 100kPa)

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6
Q

what is the highest water potential

A

its Zero

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7
Q

when solute is added to water what happens to the water potential?

A

the water potential becomes more negative

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8
Q

what happens if a red blood cell is placed in pure water?

A

the red blood cell will absorb the water by osmosis because it has a lower water potential

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9
Q

what is haemolysis

A

when a red blood cell bursts because of high water potential.

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