Water In Plants Flashcards
What is osmosis?
The movement of water molecules across a semipermeable membrane from an area of high water concentration to low water concentration
What is an important factor in moving water through plants?
Pressure.
What kind of pressure increases as water enters a plant cell?
Turgor pressure.
How does increased turgor pressure slow osmosis in plant cells?
Increased turgor pressure makes a cell go turgid and firm, which can prevent more water from entering a cell, even with a concentration gradient.
In which environment do plant cells have potential to lose water>
High solute environments.
What happens when too much water is lost from a cell?
The cytoplasm collapses, pilling the plasma membrane away from the cell wal.
What is plasmolysis?
The pulling away of the plasma membrane from the cell wall due to the collapse of cytoplasm.
