When you deal with problems like this, you need to consider diffusion and osmosis. In this case, you would refer to diffusion, which is the movement of water across a membrane from high concentrations to low concentrations (to try to balance the concentrations). First consider what happens to the cells when you place the elodea leaf in the salt solution; the water in the cells tries to balance the high concentration of salt (sodium chloride) in the surrounding solution, so the water leaves the leaf, thus the cells shrink. Now when you put the elodea leaf into regular water again, there is a higher concentration of water in the surrounding environment compared to inside the leaf's cells, so in attempt to balance concentrations, water goes INTO the cells, thus the cells in the elodea leaf swell (expand).
plasmolysis
Cells that are placed in a hypertonic solution of pure water tend to ___
if starch is present in a substance, the solution IKI when combined will turn the substance a blue-black color. When the plant Elodea was combined with IKI the elodea did not turn a blue-black color. Hence elodea does not contain starch.
The human epithelial cells are thick and boxlike whereas elodea cells are thin and platelike. The cells of elodea are rigid and rectangular in shape.
An ELODEA cell is a PLANT cell. A HUMAN EPIDERMAIL cell is an ANIMAL cell. if you know that plant cells and animal cells have different organelles, then you should be good to go.
plasmolysis
the elodea cells swell and the cell becimes fat and dies
Both types of cells will have endo-osmosis and will become turgid
Elodea cells are smaller
Cells that are placed in a hypertonic solution of pure water tend to ___
What can happen to animal cells when placed in a hypotonic solution explain
Try it yourself !
if starch is present in a substance, the solution IKI when combined will turn the substance a blue-black color. When the plant Elodea was combined with IKI the elodea did not turn a blue-black color. Hence elodea does not contain starch.
Is Elodea cell an organism?
When a plant cell is placed in an hypotonic solution it becomes swollen and hard. The cell takes in water by osmosis and starts to swell, but the cell wall prevents it from bursting.
the cells are dead so the potato whould not perform any movement
The human epithelial cells are thick and boxlike whereas elodea cells are thin and platelike. The cells of elodea are rigid and rectangular in shape.