0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What does a plant cell look like when it is plasmolysed?
externally the cell looks the same as the cell wall is rigid, internally the cell membrane pulls away from the cell wall
What does prolonged plasmolysis do to cells?
Plasmolysis might be a disadvantage to a cell when too much water is drawn out of the cell. This could cause the cell to collapse. This rarely happens in nature but can be seen in laboratory testing when the cell is forced into a concentrated saline solution.
Normal cell become cancer when the cell does what?
about the cell divison maybe
What happens to a cell when it is placed into a solution that is hypo-tonic to it?
Water moves into the cell by osmosis. If it is a plant cell, it will become fully turgid. If it is an animal cell, the cell will become larger and larger and will eventually burst.
How can a galvanic cell become electrolytic cell?
The Redox Reaction Is Reversed
What would a blood cell do if it went into a salt solution?
It will get plasmolysed.
Do cells reccover from the state of plasmolysis?
Yes, if a plasmolysed cell is placed in a hypotonic solution it can recover as a turgid cell.
What does a plant cell look like when it is plasmolysed?
externally the cell looks the same as the cell wall is rigid, internally the cell membrane pulls away from the cell wall
What is the meaning of plasmolysed cell?
Plasmolysis is when a plant cell looses so much water (via osmosis) so the cell membrane begins to "peel away" from the cell wall :)
What is a plasmolysed cell?
A plasmolysed cell is where the cell membrane has pulled away from the cell wall, resulting in the collapse of the cell. This usually occurs because the cell has been placed in a solution with a concentration of water lower then that inside the cell so the water has diffused through the semi-permeable membrane of the cell into the solution and the cell shrivels because it has no water.
Which pressure is absent in plasmolysed cell?
Tugor pressure. Tugor pressure is caused by the cell's vacuole filling up with water and pressing against the outside of the cell. Isnt turgor pressure occurring in a turgid cell? =/
Why is the cell membrane still attached to the cell wall at some point when the cell is plasmolysed?
Cellulose microfibrils extending from strands of the Hechtian reticulum and entwining into the cell wall matrix act as anchors for the plasma membrane as it moves away from the wall during plasmolysis.
What would happen to the cells of a freshwater organism if it was placed in saltwater?
The concentration of water molecules outside the cell is lower than the concentration of the water molecules inside the cell. As a result, water moves out of the cell by osmosis. When water moves out, cells shrink. Put another way, the concentration of solute (salt) is higher outside the cell than inside. More water will flow out of the cell than into the cell through the cell membrane.
Do animal cells prefer hypertonic or hypotonic solutions?
isotonic solution is when the cell content has the same solute potential as the solution the cell is in. therefore no net movement of molecules.when a animal cell is placed in a hypotonic solution (a solution containing less solute particles than inside cell e.g water) molecules move from a high water potential to a low one because diffusion. net movement is into the cell. because of this the cell swells and eventually burst. this is osmotic shock.in a hypertonic solution the net movement is out of the cell. the cell shrinks this is called crenation.plant cell have a cell wall so in a hypotonic solution the cell swells but doesn't not burst because of the strong structure of the cellulose cell wall.the cell becomes turgid.in a hypertonic solution the net movement is out of the cell because of the high solute conc outside the cell. the cell membrane begins to pull away from the cell wall. the cell is plasmolysed. when fully plasmolysed it is irreversible.
What will happen if Plasmolysed Spirogyra filament is placed in water?
bla bla bla.............................
What does prolonged plasmolysis do to cells?
Plasmolysis might be a disadvantage to a cell when too much water is drawn out of the cell. This could cause the cell to collapse. This rarely happens in nature but can be seen in laboratory testing when the cell is forced into a concentrated saline solution.
What happens to a plant cell in a salt solution?
Plant cells always have a strong cell wall surrounding them. When they take up water by osmosis they start to swell, but the cell wall prevents them from bursting. Plant cells become "turgid" when they are put in dilute solutions. Turgid means swollen and hard. The pressure inside the cell rises, eventually the internal pressure of the cell is so high that no more water can enter the cell. This liquid or hydrostatic pressure works against osmosis. Turgidity is very important to plants because this is what make the green parts of the plant "stand up" into the sunlight. When plant cells are placed in concentrated sugar/salt solutions they lose water by osmosis and they become "flaccid"; this is the exact opposite of "turgid". If you put plant cells into concentrated sugar solutions and look at them under a microscope you would see that the contents of the cells have shrunk and pulled away from the cell wall: they are said to be plasmolysed. When plant cells are placed in a solution which has exactly the same osmotic strength as the cells they are in a state between turgidity and flaccidity. We call this incipient plasmolysis. "Incipient" means "about to be".
