Carry out the following osmosis experiment: Take four peeled potato halves and scoos 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.(a) Now, 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: Explain why water does not gather in the hollowed out portion of A and D.

Explanation

Water does not gather inside cups A and D because cup D is made of boiled potato. Its cells are dead and their cell membranes are no more selectively permeable Therefore, no osmosis takes place and water does not go inside the potato from outside. Potato cup A has been left empty. Therefore, the concentration on both sides of the cell membrane is equal. As a result, there is no-movemen in the water molecules. Thus, water does not collec inside cup.s A and D.