AP BIOLOGY

LABORATORY REVIEW

DIFFUSION AND OSMOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If a solution has a higher concentration of dissolved particles than a cell, the solution is ____
A
isotonic
B
hypertonic
C
hypnotic
D
hypotonic
Explanation: 

Detailed explanation-1: -A hypertonic solution is any external solution that has a high solute concentration and low water concentration compared to body fluids. In a hypertonic solution, the net movement of water will be out of the body and into the solution.

Detailed explanation-2: -Hypertonic: The solution with the higher concentration of solutes. Hypotonic: The solution with the lower concentration of solutes.

Detailed explanation-3: -A hypertonic solution has a higher concentration of dissolved particles than a cell. A cell in a hypertonic solution will shrivel. A hypotonic solution has a lower concentration of dissolved particles than a cell.

Detailed explanation-4: -A solution will be hypertonic to a cell if its solute concentration is higher than that inside the cell, and the solutes cannot cross the membrane.

Detailed explanation-5: -Hypertonic solution: A solution that contains more dissolved particles (such as salt and other electrolytes) than is found in normal cells and blood. For example, hypertonic solutions are used for soaking wounds.

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