Question

Describe an activity to demonstrate the process of osmosis

Answer 1

osmosis is a process in which the water molecules move from a region oh higher water concentration to a region of lower water concentration across a semi permiable membrane.
THE POTATO EXPERIMENT:
it is the best examples for the process of osmosis
take four peeled POTATO halves (A,B,C,D)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.
RESULT:
keep the for 2 hrs. then observe the four POTATO cups.
a)water enters in the hollowed portions of POTATO B and C as a result of osmosis. since the medium surrounding the cell has a higher water concentration than the cell,the water moves inside by osmosis.hence it gathers inside the POTATO cup.
b)POTATO A in the experiment is empty. hence no water gathers in its portion.
c)water is not able to enter potato D because POTATO used here is boiled. for osmosis to take place the semipermeable membrane is required which is structured or damaged in the POTATO cup D. therefore the water does not enter the boiled POTATO cup D.

Answer 2

Answer:

• Through the process of osmosis, solvent molecules tend to move from a less concentrated solution into a solution that is more concentrated.
• Do an experiment to show osmosis:
• Petri dish, water, potatoes, sugar solution, cork, and capillary tube are needed.
• Take a potato tuber, cut off the outer layer from one end, and then cut the remaining end flat.
• From the other end of the tuber, scoop out a cavity that extends almost all the way to the bottom.
• Place a capillary tube-equipped airtight stopper on the cavity's upper end after filling it with the sugar solution.
• Put the potato tuber with the capillaries fitted in the petri dish with water.
• Watch the experiment for a while while noting the solution level in the tube.
• Observations: The amount of solution in the tube rises over time. When the solution stops moving, note the level of the solution.
• Results: Because the osmotic pressure of the sugar solution is higher than that of the water, water passes through the potato membrane's semipermeable barrier from the petri dish into the cavity, raising the level in the capillary tube. Thus, the experiment demonstrates the osmosis phenomena.

#SPJ2