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Tonicity - Coggle Diagram
Tonicity
Hypotonic
Net inflow of solution
Situation when:
Solution outside of cell have less obstructing particles than those inside
Solution tends to flow inside of cell
Put pressure on the cell's structure
Cell might:
Explodes
Expands
Cells that favor such environment
Plant cell
Rigid cell wall prevents explosion
Hypertonic cytoplasm helps equalizes inflow
Defense mechanism against it:
Contractile vacuole
Collects and pumps out excessive water
Found in protists that lack cell wall
Isotonic
No net flow
Situation when:
Both the solution inside and outside of the cell have the same concentration of obstructing particles
Stable
Nothing is likely to happens
Cells that favor such environment
Red blood cell
Won't explodes and thus can do their job
Hypertonic
Net outflow of solution
Situation when
Solution inside of cell have less obstructing particles than those outside
Solution tends to flow outside of cell
Cell loses solution (let's say water)
Contracts
Cell loses turgor pressure (internal pressure that supports the cell)