Carry out the following osmosis experiment: Take four peeled potato halves and scoop each one out to make potato cups. One of these potato cups should be made from a boiled potato. Put each potato cup in a trough containing water. Now, (a) Keep cup A empty (b) Put one teaspoon sugar in cup B (c) Put one teaspoon salt in cup C (d) Put one teaspoon sugar in the boiled potato cup D. Keep these for two hours. Then observe the four potato cups and answer the following: (i) Explain why water gathers in the hollowed portion of B and C. (ii) Why is potato A necessary for this experiment? (iii) Explain why water does not gather in the hollowed out portions of A and D.
Answers
Answered by
234
Here is your answer!
Firstly, water gathers in the portion of the set up B and C in the hollowed portion say.
The water will enter the potato as a result of osmosis, then, since the medium surrounding the cell has a higher water concentration than the cell, which means the water moves inside by osmosis.
Potato A will react as control set-up.
Water doesn’t gather in the hollowed portions of potato A, because it’s empty.
Water is not able to enter potato D because the potato D is boiled.
The boiling will disrupt the cell membrane and for osmosis, a semi-permeable membrane is required.
So the water will not enter the boiled potato cup.
Firstly, water gathers in the portion of the set up B and C in the hollowed portion say.
The water will enter the potato as a result of osmosis, then, since the medium surrounding the cell has a higher water concentration than the cell, which means the water moves inside by osmosis.
Potato A will react as control set-up.
Water doesn’t gather in the hollowed portions of potato A, because it’s empty.
Water is not able to enter potato D because the potato D is boiled.
The boiling will disrupt the cell membrane and for osmosis, a semi-permeable membrane is required.
So the water will not enter the boiled potato cup.
Attachments:
Answered by
182
Answer:
(i) Since sugar and salt was present in B and C respectively, water from the trough gathered in the hollowed portions of potato in B and C by the process of osmosis.
(ii) Potato A is necessary for carrying out this experiment because it acts as a control experiment. Control helps us to check what changes occurred during the course of the experiment and helps us to compare the results.
(iii) Water does not gather in the hollowed portion of potato A as it was empty. Water also does not gather in the cup D because the potato used was boiled which makes it inactive as after boiling its protein structure were denatured, resulting in the disruption of the cell membrane.
Explanation:
mark please as brainlest
Similar questions