Multiple Choice
A semipermeable membrane is placed between the following solutions.
Which solution will increase in volume?
13. Solutions
Osmosis
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A solution with the same osmotic pressure as the blood is
A
isotonic to the blood
B
hypotonic to the blood
C
hypertonic to the blood
D
nontonic to the blood.
Verified step by step guidance1
Understand the concept of osmotic pressure: Osmotic pressure is the pressure required to prevent the flow of a solvent into a solution through a semipermeable membrane. It is a colligative property, meaning it depends on the number of solute particles in a solution.
Define isotonic solutions: An isotonic solution has the same osmotic pressure as another solution, typically a biological fluid like blood. This means that there is no net movement of water across a semipermeable membrane separating the two solutions.
Compare isotonic, hypotonic, and hypertonic solutions: An isotonic solution has equal osmotic pressure to the blood, a hypotonic solution has lower osmotic pressure (leading to water entering cells), and a hypertonic solution has higher osmotic pressure (leading to water leaving cells).
Identify the correct term: Since the problem states that the solution has the same osmotic pressure as the blood, it matches the definition of an isotonic solution.
Conclude with the correct choice: The solution is isotonic to the blood, as it has the same osmotic pressure, preventing any net movement of water across cell membranes.
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