Question

In which situation would water enter a cell through osmosis?
A.The cell is 20% water, and the cell's environment is 80% water,
B.The cell is 50% water, and the cell's environment is 50% water,
C.The cell is 60% water, and the cell's environment is 40% water.
D.The cell is 80% water, and the cell's environment is 20% water.

Answer 1

Answer:

A

Explanation:

Water enters osmosis when the cell's water is lower than its environment's water. This is known as Hypertonic. B is an equalibrium so nothing special happens there, and C and D are examples of potential bursting of the cell from too much water, known as Hypotonic, so in process of elemination, A would be the answer. Another way of telling that C and D aren't the answer is that if they were really true, both of them would be correct, and there can't be two correct answers.

Answer 2

Water would enter the cell if the cell is 20% water, and the cell's environment is 80% water (Option A).

• Osmosis refers to the process of movement of a solvent (e.g., water) from a solution of lower concentration to a solution of higher concentration through a semi-permeable membrane.

• The osmosis movement tends to balance the final concentrations of solute on the two sides of the membrane.

• This process (osmosis) is called passive transport because it does not require energy to move water molecules through biological membranes.

In conclusion, water would enter the cell if the cell is 20% water, and the cell's environment is 80% water (Option A).

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