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When a red onion cell is placed in darkness, it undergoes a process called etiolation, where it grows elongated and pale due to a lack of light. The chlorophyll production decreases, resulting in a lack of green coloration, while the cell may rely on stored nutrients for energy. This adaptation helps the plant survive in low-light conditions, promoting upward growth toward a light source. Over time, if light exposure is provided, the cells will start producing chlorophyll and regain their color.
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What is the outcome of placing a red blood cell and an onion cell in hypo-tonic solution?
both the cell will swell and rbc will burst easily while cells of onion peal will resist the bursting to some extenct
What might be done to improve osmosis in red onion cell experiment?
It is the salt solution and distilled water
In what ways is the action of an onion cell in HYPERTONIC solution similar to that of a red blood cell?
In a hypertonic solution, both onion cells and red blood cells experience osmosis, leading to water loss. As a result, the onion cells undergo plasmolysis, where the cell membrane pulls away from the rigid cell wall, while red blood cells undergo crenation, causing them to shrink and become distorted. In both cases, the cells are unable to maintain their normal shape and function due to the loss of water in response to the higher solute concentration outside the cells.
What is the effect of saltwater on onion cells?
If the concentration of salt is higher OUTSIDE the cell, then water will move from the cell to the outside (osmosis) to equilibrate the concentration gradient that you have created! Water will leave the cell, and the cell will shrink (due to the decrease in volume).
What would most likely happen to an onion cell if it were placed in a liquid with a high concentration of solutes?
As the "salt solution" is a hypertonic solution which has the concentration of the solute outside of the cell is higher than the inside's. That also means the concentration of the water is now smaller in the outside of the cell than the inside's, which make the water molecules diffuse from the inside of the cell to the outside, resulted in making the cell (onion cell in this case) shrunken, or smaller.
Where is the red pigment of a red onion?
cell membrane
Is red onion skin a cell?
yes yes
What is the outcome of placing a red blood cell and an onion cell in hypo-tonic solution?
both the cell will swell and rbc will burst easily while cells of onion peal will resist the bursting to some extenct
What is the dependent variable and independent variable for the red onion cell lab?
In the red onion cell lab, the independent variable is the concentration of the solution used (such as salt or sugar solution), as this is what you manipulate to observe its effect. The dependent variable is the extent of osmosis, which can be measured by changes in the appearance or turgor of the red onion cells, often observed through microscopy as changes in cell size or color.
What would happen to red onion cell if sucrose solution added?
When a red onion cell is placed in a sucrose solution, water from inside the cell will move out due to osmosis. This will cause the cell to shrink and lose its turgidity as water moves from an area of higher concentration to lower concentration (from inside the cell to the solution outside).
What might be done to improve osmosis in red onion cell experiment?
It is the salt solution and distilled water
When was The Red Onion created?
The Red Onion was created in 1892.
Why is the prison named Red Onion?
It is located on top of Red Onion Mountain
In what ways is the action of an onion cell in HYPERTONIC solution similar to that of a red blood cell?
In a hypertonic solution, both onion cells and red blood cells experience osmosis, leading to water loss. As a result, the onion cells undergo plasmolysis, where the cell membrane pulls away from the rigid cell wall, while red blood cells undergo crenation, causing them to shrink and become distorted. In both cases, the cells are unable to maintain their normal shape and function due to the loss of water in response to the higher solute concentration outside the cells.
What substance would most likely be used to return the red onion cell to original condition?
A hypotonic solution, such as distilled water, would most likely be used to return the red onion cell to its original condition. This solution would cause the cell to take in water and swell up, potentially reversing any plasmolysis that occurred.
Types of onion that are purple?
The red onion is purple.
Which onion is the strongest - scent and taste - out of the red onion the white onion and the shallot?
Is the one with a the colour red and the smell is so deep..............
