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How can you tell a plant cell from an animal cell?
Plant cells are rectangular, while animal cells are circular.
What is the purpose of ice-cold ethanol?
In an experiment to extract DNA from something like an onion or strawberry, the last step is to slowly pour ice cold ethanol into the test tube. This causes the DNA to precipitate out of the solution and white stringy material appears a the boundary of the ethanol and prepared DNA solution. The reason why it happen is because ethanol solution break down the nuclear membrane and cell membrane.
Why does ethanol burn differently than ethanol and water mixed?
the main reason why ethanol burns differently then ethanol and water mix is mainly because when you add the water to the ethanol you are making the ethanol less potent so it will burn weaker.
Is ethanol reducing agent?
ethanol is a solvent
Is ethanol a metal?
No, ethanol is an organic basic liquid, wine and beer contain ethanol, and it is flammable
3 types of tonicity on a cell?
The three type are hypertonic, isotonic, and hypotonic. Hypertonic is when the tonicity of the cell is lower than that of the surrounding liquid, isotonic is when the tonicity of the cell is equal to that of the surrounding liquid, and hypotonic is when the tonicity of the cell is greater than that of the surrounding liquid.
What is the concentration of material in a cell that affects the fluid volume and pressure within the cell?
Tonicity
What is the difference between osmolarity and tonicity?
Tonicity refers to the relative concentration of solute particles inside a cell, with respect to the concentration outside the cell. Osmolarity refers to the movement of water from the inside to the outside of a cell, and vice versa
What correctly describes the normal tonicity conditions for typical plant and animal cells?
The animal cell is in an isotonic solution, and the plant cell is in a hypotonic solution
What role does the cell wall play in tonicity?
gives shape to plant cells
What is the tonicity of normal saline compared to your blood?
What is the tonicity of you blood
What are the real world applications of tonicity?
Tonicity is a measure of the effective osmotic pressure gradient; the water potential of two solutions separated by a semipermeable cell membrane. In other words, tonicity is the relative concentration of solutes dissolved in solution which determine the direction and extent of diffusion. It is commonly used when describing the response of cells immersed in an external solution.
Why do you use 70 percent alcohol and not 90 percent while microbial culture?
Ethanol creates pores in the cell membrane of the microbial cell by solubilizing the lipoproteins of the membrane. The activity of ethanol determines its concentration. If we 90 percent ethanol, the amount of ethanol molecules available to act upon the cell is more and it attacks the cell membrane from all sides. The dissolved lipoprotein forms a kind of layer around the cell, due to which the alcohol is unable to act further and cause damage to the cell. However, if we use 70 percent ethanol, the amount of ethanol molecules are few and it is not able to attack the cell from all sides. Thus, pores are created intermittently in the plasma membrane, the ethanol penetrates the cell and damages it completely. So, 70 percent ethanol is preferable to 90 percent when using microbial cultures.
What is the best type of tonicity in an environment of a red blood cell?
Isotonic solutions will maintain the normal volume of an individual red blood cell. A hypotonic solution will swell the cell, and a hypertonic one will shrink it.
What makes a nerve cell an animal cell?
the cell is a cell and an animal cell is an animal cell
How does tonicity relate to osmosis?
Tonicity refers to the measure of the effective osmotic pressure gradient between two solutions. The higher the difference in the tonicity between the two solutions, the more osmosis transpires.
What is one product of fermentation In cell?
carbon dioxide and ethanol
