D2.3.1 to 3.1 Water Potential Flashcards
What factors affect the movement of water into our out of the cell? How do plant and animal cells differ in their regulation of water movement?
Water is ___________________.
The Solvent of Life.
Define Solvent.
A solvent is a substance in which a solute is dissolved.
Define Solute.
A solute is a substance that can be dissolved into a solution by a solvent.
Define Solvation.
Solvation is the combination of a solvent with the molecules or ions of a solute.
Outline the steps to solvation.
- The particle of a solute SEPARATE from each other.
- The water particles SEPARATE from each other.
- The separated solute and water particles COMBINE to make a solution.
Cells in a HYPERTONIC environment: ________________.
Surrounded by a solution that is HIGHER in solutes and LOWER in water relative to the cytoplasm inside the cell membrane.
Cells in a HYPOTONIC environment: ________________.
Surrounded by a solution that is LOWER in solutes and HIGHER in water relative to the cytoplasm inside the cell membrane.
Cells in an ISOTONIC environment: ________________.
Have EQUAL concentrations of solute inside and outside the cell.
When a cell is placed in a solution with HIGH solute concentration (HYPERTONIC), ___________________________
Due to the high value of solute particles outside the cell, water moves OUT of the cell. With no cell wall present, the cell visibly SHRINKS, resulting in CRENATION.
When a cell is placed in a solution with HIGH water concentration (HYPOTONIC), ___________________________.
Due to the high value of water particles outside the cell, water moves INTO the cell. With no cell wall present, the cell visibly SWELLS.
What is crenation?
Crenation is the extreme shrinking of the cell (as in, cell becomes crinkled).
