Biological Molecules

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Diffusion (Passive)
Movement of molecules from an area of high to low concentration, it may or may not be across a membrane; it does not involve metabloic energy (ATP)
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Facilitated Diffusion
Movement of molcules from an area of high concentration to low, across a partially permeable membrane via protein channels or carriers; it does not involve metabolic energy (ATP)
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Osmosis
a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.
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Cytolysed
The process in animals cells where if a lot of water molecules enter, the cell will swell and burst as the plasma membranes breaks.
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Turgid
A swollen state of plant celss that have taken in water by osmosis and reached their maximum state of swelling. The cell wall now exterts a pressure and prevents any more water entering the cell.
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Crenated
A shrivelled animal cell that has lost water by osmosis.
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Plasmolysed
Plant cells where the contants hafve shrunk due to loss of water by osmosis and the plasma membrane has separated from the cell wall.
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Flaccid
Plant tissue where there is no tugor- the tissue is soft.
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Water Potential
Measure of the tendency of water molecules to diffuse from one region to another.
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Card 2

Front

Movement of molcules from an area of high concentration to low, across a partially permeable membrane via protein channels or carriers; it does not involve metabolic energy (ATP)

Back

Facilitated Diffusion

Card 3

Front

a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one.

Back

Preview of the back of card 3

Card 4

Front

The process in animals cells where if a lot of water molecules enter, the cell will swell and burst as the plasma membranes breaks.

Back

Preview of the back of card 4

Card 5

Front

A swollen state of plant celss that have taken in water by osmosis and reached their maximum state of swelling. The cell wall now exterts a pressure and prevents any more water entering the cell.

Back

Preview of the back of card 5
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