I need help looking for sources to answer these questions based on the concept of osmosis?

Question

1. Assume that you put animal and plant tissue samples in distilled water. How will their mass change, and what other effects will you see?

2. How do you expect land plants like potatoes and sea plants like kelp (a seaweed) to differ in their response to salt water?

3. Suppose that, instead of salt, this lab used sugar as the solute. How would you expect the results to change?

sources please, or any information from your brains that cud help would be great. thanks.

i just can't find anything thats helping me out here. :)

Answer 1

1. Assume that you put animal and plant tissue samples in distilled water. How will their mass change, and what other effects will you see?

Since the distilled water is hypotonic to both cells, each cell will take in water via osmosis.  The animal cell does not contain a cell wall and will burst, while the plant cell will become turgid or puffed up because of the cell wall.

2. How do you expect land plants like potatoes and sea plants like kelp (a seaweed) to differ in their response to salt water?

Depending on the solute (salt) concentration the sea plants will show very little or no change.  The salt water and the plants cytoplasm are isotonic to each other.  Water will diffuse in and out at the same rate.  The land plant is hypotonic to the salt water and will lose mass and shrivel up.

3. Suppose that, instead of salt, this lab used sugar as the solute. How would you expect the results to change?

No.  Since salt and sugar will not pass through the cell membrane they will act the same.

Answer 2

1.when u put the animal or plant cell in the distilled water,their mass will increase because the water molecule moves into the cell by osmosis. other effect is,the animal cell will expand and eventually burst (haemolysis).however,the plant cell does not burst even the cell water molecule moves in because the cell wall prevent the cell from bursting.