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Exchange - Coggle Diagram
Exchange
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Diffusion
The spreading out of particles of gas or any substance in solution, resulting in the net movement from an area of high concentration to an area of low concentration.
Dissolved substances and gases can move in and out of cells, across the cell membrane, by diffusion.
Examples of these substances are oxygen, glucose, and carbon dioxide.
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The increased surface area of the cell membrane means the area over which diffusion can take place is increased, meaning that the rate of diffusion is increased.
Diffusion is the net movement of particles from an area of high concentration to an area of low concentration.
Osmosis
Osmosis is the net movement of water from an area of high water concentration to an area of low water concentration across a partially permeable membrane.
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Solutes
Isotonic
This is when the solution has the same solute concentration compared to the intracellular solute concentration.
Hypertonic
This is when the solution has a higher solute concentration compared to the intracellular solute concentration.
Hypotonic
This is when the solution has a lower solute concentration compared to the intracellular solute concentration.
Active Transport
This is an active process, meaning that substances are moved against their concentration, from an area of low concentration to an area of high concentration.