Water Potential Flashcards
Why do Transplant Organs need to be Bathed in Isotonic Solutions
To prevent damage to the cells in the organ
To have the same solute concentration as the cells in the organ
To avoid cells from shrinking or swelling due to loss or gain of water by osmosis
Water Movement in a Hypertonic Solution
Pressure potential decreases as water is leaving the cell and the cell becomes flaccid and loses turgor pressure
Solute potential increases as due to the absence of water, the solute concentration becomes more concentrated
Solubility of Glucose
Glucose has hydrophilic Hydroxyl groups with oxygen which has a partial negative charge. This allows the Hydroxyl groups and water to form a hydrogen bond which causes solvation
Pressure Potentials
Pressure exerted by water in a system to stop the flow of water down its gradient
Positive Pressure: Pressure in system is greater than environment
Negative Pressure: Pressure in System is less than environment
The higher the pressure, the higher the water potential, the more positive the value is
Water moves from high to low pressure
Hypertonic Effect in Plant Cell and Reason
Plasmolysis as the vacuole gradually shrinks from the cell wall and becomes flaccid, along with the membrane pulling away from the cell wall and making the cell plasmolyzed
Tonicity
The measure of the concentration of solute particles on either side of a partially permeable membrane
Only solutes who can’t pass the membrane contribute to tonicity
Osmolarity
The measure of solute concentration
Isotonic Effect in Plant Cell and Reason
Becomes flaccid as the plasma membrane is not pressed tightly against the cell wall
Isotonic Effect in General
Dynamic Equilibrium
Hypotonic Effect in General
Water moves by osmosis from lower solute concentration (outside) to higher solute concentration (inside), thus increasing the volume of the cell
Hypotonic Meaning
Solute Concentration is Lower
Water Concentration is Higher
Water Potential Equation
Water Potential = Solute Potential + Pressure Potential
Hypertonic Meaning
Solute Concentration is Higher
Water Concentration is Lower
Water Molecule Formation
Water is made of 1 Oxygen atom and 2 Hydrogen atoms joined together by a covalent bond
Hypertonic Effect in General
Water moves by osmosis from low solute concentration (inside) to high solute concentration (outside)