Diffusion and osmosis Flashcards

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1
Q

What is diffusion?

A

Diffusion is the net movement of molecules from a region of higher concentration to a region of lower concentration.

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2
Q

What is osmosis?

A

Osmosis is the net movement of water molecules from a region of higher water potential to. A region of lower water potential through a partially permeable membrane.

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3
Q

Normal cells with concentrated salt/sugar solution

Which has higher water potential?

A

Cells

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4
Q

Normal cells with dilute salt/sugar solution

Which has higher water potential?

A

Dilute solution

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5
Q

3 Descriptions(end result) used after gaining water molecules

A

Turgid
Burst
Expand

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6
Q

Steps to use for osmosis/diffusion qns

A
  1. Water potential higher where?
  2. Where water molecules move, through where and what process
  3. End result(shrink/expand) causing the size to …
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7
Q

3 Descriptions(end result) used after losing water molecules

A

Flaccid
Crenated(red blood cells)
Plasmolysed
Shrink

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