Movement of Substances Across a Plasma Membrane and Its Application in Daily Life

3.4 Movement of Substances Across a Plasma Membrane and Its Application in Daily Life
 
Phenomenon of Plant Wilting
  • Excessive use of fertilisers may cause wilting in plants
  • Dissolved fertilisers will cause soil water to be hypertonic to the sap cell of roots
  • Consequently, water will diffuse by osmosis from the roots’ cell sap to the soil, and cells will become plasmolysed
  • Cells in plants will recover once they are watered
  • However, if the period of plasmolysis is prolonged, wilted plants will eventually die
 
The image is an infographic titled Application of Movement of Substances Across Plasma Membrane in Daily Life. It is divided into five sections, each describing a different application: 1. **Rehydration Drinks**: Oral rehydration salts help to recover the loss of water and electrolytes in individuals with diarrhea. 2. **Isotonic Drinks**: Help athletes to recover the loss of water and electrolytes such as potassium and sodium through perspiration. 3. **Saline Solution**: Normally used in medicine, are isotonic solutions to the blood plasma. 4. **Reverse Osmosis**: A technology commonly used to extract fresh water from seawater using the desalination process. 5. **Liposome**: Used to protect drugs from being destroyed by gastric juices
 
Application of Movement of Substance Across a Plasma Membrane in Daily Life
Rehydration Drinks
  • An oral rehydration salts help to recover loss of water and electrolytes in individuals with diarrhoea
Isotonic Drinks
  • Help athletes to recover loss of water and electrolytes such as potassium and sodium through perspiration
Saline Solution
  • Used in medicine
  • An isotonic solution to the blood plasma
  • It contains 0.85–0.90 g sodium chloride per 100 ml
Liposomes
  • Vesicles that contain aqueous solution surrounded by a phospholipid bilayer membrane
  • Liposomes are used to protect drugs or active substances taken orally from being destroyed by gastric juices 
  • This way, drugs can reach the target cells
Reverse Osmosis
  • The technology commonly used to extract fresh water from seawater using the desalination process
  • In reverse osmosis equipment, pressure is applied to push the seawater through a semi-permeable membrane
  • The membrane allows water molecules to pass through it but not foreign particles, salt, and microorganisms
  • As a result, only pure fresh water is released

Movement of Substances Across a Plasma Membrane and Its Application in Daily Life

3.4 Movement of Substances Across a Plasma Membrane and Its Application in Daily Life
 
Phenomenon of Plant Wilting
  • Excessive use of fertilisers may cause wilting in plants
  • Dissolved fertilisers will cause soil water to be hypertonic to the sap cell of roots
  • Consequently, water will diffuse by osmosis from the roots’ cell sap to the soil, and cells will become plasmolysed
  • Cells in plants will recover once they are watered
  • However, if the period of plasmolysis is prolonged, wilted plants will eventually die
 
The image is an infographic titled Application of Movement of Substances Across Plasma Membrane in Daily Life. It is divided into five sections, each describing a different application: 1. **Rehydration Drinks**: Oral rehydration salts help to recover the loss of water and electrolytes in individuals with diarrhea. 2. **Isotonic Drinks**: Help athletes to recover the loss of water and electrolytes such as potassium and sodium through perspiration. 3. **Saline Solution**: Normally used in medicine, are isotonic solutions to the blood plasma. 4. **Reverse Osmosis**: A technology commonly used to extract fresh water from seawater using the desalination process. 5. **Liposome**: Used to protect drugs from being destroyed by gastric juices
 
Application of Movement of Substance Across a Plasma Membrane in Daily Life
Rehydration Drinks
  • An oral rehydration salts help to recover loss of water and electrolytes in individuals with diarrhoea
Isotonic Drinks
  • Help athletes to recover loss of water and electrolytes such as potassium and sodium through perspiration
Saline Solution
  • Used in medicine
  • An isotonic solution to the blood plasma
  • It contains 0.85–0.90 g sodium chloride per 100 ml
Liposomes
  • Vesicles that contain aqueous solution surrounded by a phospholipid bilayer membrane
  • Liposomes are used to protect drugs or active substances taken orally from being destroyed by gastric juices 
  • This way, drugs can reach the target cells
Reverse Osmosis
  • The technology commonly used to extract fresh water from seawater using the desalination process
  • In reverse osmosis equipment, pressure is applied to push the seawater through a semi-permeable membrane
  • The membrane allows water molecules to pass through it but not foreign particles, salt, and microorganisms
  • As a result, only pure fresh water is released