Question

Mr. Chavez wants his class to prepare a procedure that would demonstrate cellular diffusion. Which of the following procedures would best demonstrate cellular osmosis?

A. A procedure that uses the skins of potato left overnight in oil

B. A procedure that uses a cluster of grapes left overnight in a high concentration of salt water
C. A procedure that uses a 2-liter bottle filled with oil and water and left overnight

D.A procedure that uses a banana that has been left overnight in milk

Answer 1

Answer:

B

Explanation:

The second option correctly shows the process of cellular osmosis.

When the grapes would be immersed in water, the molecules of water move across the cell membrane from the region of low to high solute concentration. Due to this, the water would leave the cells and diffusion of water from the cells of the grapes. Thus, option B is the correct answer.

Answer 2

In conclusion, the procedure that uses a cluster of grapes left overnight in a high concentration of salt water would BEST demonstrate cellular osmosis (Option B).

• Osmosis refers to the movement of a solution (often water) across a selectively permeable membrane.

• This movement (osmosis) is due to the difference in solute concentrations on both sides of the semipermeable membrane.

• In osmosis, water molecules move from a region of low concentration of solutes (e.g., salt) to a region of high concentration of solutes.

In conclusion, the procedure that uses a cluster of grapes left overnight in a high concentration of salt water would BEST demonstrate cellular osmosis (Option B).

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