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What is the purpose of cell walls?
It gives rigidity and support to the cell and maintains pressure by preventing excess flow of water
How do you keep spaghetti dishes from having excess water?
strain off excess water from pasta, than saute pasta and sauce together.
Which organelle helps keep some unicellular organisms from bursting as they absorb water by osmosis?
Contractile vacuole helps regulate water intake and prevent bursting in unicellular organisms by pumping out excess water that enters the cell by osmosis.
How does a planarian move in water?
The Planarian is a single celled organism with a rather large vacuole. In water, the water concentration outside the cell is higher than what is inside, causing the water to pass into the cell. At the risk of drowning, Planarian expel excess water through their vacuole to keep water levels stable. The force exerted by the exiting water propels the Planarian through the water.
How do water salts and sugars keep a blood cell from swelling?
The water salts and sugars will match the water concentration within the blood cell, therefore water does not enter or leave the cell, resulting in the cell not swelling.
Why would osmosis cause an animal cell to burst?
If the water potential outside a cell is higher than that inside a cell, water will move into the cell through the cell membrane by osmosis. The animal cell, unlike a plant cell, does not have a cell wall, which would prevent the cell bursting as it is rigid and holds the cell structure. The cell membrane of the animal cell is not strong enough to keep the shape of the cell when there is such an increase in pressure from water inside the cell, and the cell bursts.
What is the primary function of the cell wall?
The cell wall is responsible for providing structural support for the cell. It prevents the cell from bursting when excess water enters. Animal cells do not have a cell wall, only a cell membrane. The main function of the cell membrane is to keep substances out of and inside the cell.
How protozoa maintain their osmotic balance?
Protozoans such as an amoeba lack a supporting cell wall and instead have a contractile vacuole that pumps out excess water that enters the cell by osmosis. This vacuole is not needed in organisms with more than one cell.
What do the valcuole do?
In a plant cell a vacuole stores water. The membrane allows the passage of water into and out of the cell. The vacuole gets smaller if there is not enough water in the environment because its water is being used in the cell to keep the cell functioning normally.
What are the things inside a cell that do jobs to keep the cell alive?
ATP, oxigen, heat, water.
What does the valcuole membrane do?
In a plant cell a vacuole stores water. The membrane allows the passage of water into and out of the cell. The vacuole gets smaller if there is not enough water in the environment because its water is being used in the cell to keep the cell functioning normally.
Does the cell wall protects the PLANT cell?
maintain cell shape and keep cells from absorbing too much water.
