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 gathers in the hollowed portion of B and C.

Explanation

A potato is made up of several cells. The cell membrane of the cells is selectively permeable. Cups B and C are filled with sugar and salt respectively, while their outer part is in contact with water. Therefore, the concentration of water is higher outside the potato as compared to the inside of potato. Thus, due to osmosis water moves towards the inside of potato from its outside As a result, water collects inside cups B and C.