Movement of Substances Across a Plasma Membrane and its Application in Daily Life (2)

Biology

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Diarrhea

When a person has loose or watery stools that are more frequent and abundant than usual and can cause dehydration

Diarrhea treatment

Use fluids that contain sugar and salt, to help replace lost electrolytes and recover from the dehydration

Plant wilting phenomena (2)

Dissolved fertilisers will cause soil water to be hypertonic to the sap cell of roots

Plant wilting phenomena (3)

Water will diffuse by osmosis from the roots’ cell sap to the soil, and cells will become plasmolysed

Plant wilting phenomena (4)

Cells in plants will recover once they are watered

Plant wilting phenomena (5)

If the period of plasmolysis is prolonged, wilted plants will eventually die

Example of application of concept of movement of substances across a plasma membrane in our daily lives (1)

Rehydration drinks such as oral rehydration salts

Example of application of concept of movement of substances across a plasma membrane in our daily lives (2)

Saline solutions, normally used in medicine

Example of application of concept of movement of substances across a plasma membrane in our daily lives (3)

Isotonic drinks

Example of application of concept of movement of substances across a plasma membrane in our daily lives (4)

Liposomes

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