Which sentence best describes a cell that is isotonic for a substance?
Which sentence best describes a cell that is isotonic for a substance?
The answer would be C) The solute concentration is equal on both sides of the cell membrane. This is correct because in an isotonic solution, they would have the exact salt concentration as the blood surrounding the cell.
What happens to a cell when its isotonic?
If a cell is placed in an isotonic solution, there will be no net flow of water into or out of the cell, and the cell’s volume will remain stable. If the solute concentration outside the cell is the same as inside the cell, and the solutes cannot cross the membrane, then that solution is isotonic to the cell.
When the concentration in and outside a cell are equal the cell is said to be at?
Tonicity and cells
| Tonicity of solution | Solute concentration | Water moves… |
|---|---|---|
| Hypertonic | Higher solute in solution than in cell | Out of the cell |
| Isotonic | Equal amounts of solute in cell and solution | Into and out of cell at the same time |
| Hypotonic | Lower solute in solution than in cell | Into the cell |
Which term describes the difference in the concentrations of a substance across a cell’s membrane?
Answer Expert Verified. The process of movement of a particle in a solution from the region of higher concentration to the region of lower concentration across a membrane is called as concentration gradient.
What are the types of Plasmolysis?
Plasmolysis is mainly known as shrinking of cell membrane in hypertonic solution and great pressure. Plasmolysis can be of two types, either concave plasmolysis or convex plasmolysis. Convex plasmolysis is always irreversible while concave plasmolysis is usually reversible.
What does Cytolysis mean?
: the usually pathologic dissolution or disintegration of cells.
What causes Cytolysis?
Cytolysis, or osmotic lysis, occurs when a cell bursts due to an osmotic imbalance that has caused excess water to diffuse into the cell. The presence of a cell wall prevents the membrane from bursting, so cytolysis only occurs in animal and protozoa cells which do not have cell walls.
Why is Plasmolysis important?
Plasmolysis demonstrates the permeability of the cell wall and the semipermeable nature of the protoplasm. 3. It helps to detect whether a particular cell is living or dead as the plasmolysis does not take place in a dead cell.
What is Plasmolysis what happens to a Plasmolysed cell when?
Plasmolysis is the process by which the cytoplasm of the cell gets shrinked due to the loss of water by osmosis. When a plasmolysed cell is places in water, the cell absorbs water from outside due to difference in solute concentration inside and outside the cell. By absorbing water the cell becomes turgid
What will happen if the Plasmolysed peels are transferred to water?
When plasmolysed cell is placed in water , it reasons water by endosmosis , it’s protoplasm resume its original shape and this phenomenon is called deplasmolysis
When a Plasmolysed cell is placed in water or hypertonic solution what happens?
Complete answer: Protoplast of plasmolysed cells has no turgor pressure and is also shrunken. When the plasmolysed cell is placed in water, endosmosis occurs and protoplasm of the cell resumes its original shape. Endosmosis is the process by which water moves outside the cells when placed in a hypotonic solution.
What does a hypertonic solution mean?
Hypertonic solution: A solution that contains more dissolved particles (such as salt and other electrolytes) than is found in normal cells and blood.
What is an example of a hypertonic solution?
Hypertonic solutions have a higher concentration of electrolytes than plasma. Common examples of hypertonic solutions are D5 in 0.9% normal saline and D5 in lactated ringers.
What is hypertonic example?
A hypertonic solution is one which has a higher solute concentration than another solution. An example of a hypertonic solution is the interior of a red blood cell compared with the solute concentration of fresh water
What is a real life example of hypertonic solution?
Seawater. Seawater has a high amount of salt particles compared to freshwater, making it a hypertonic solution. Freshwater fish can’t live in seawater because the water would rush from their cells into the surrounding saltwater. They would soon die from dehydration.