AP BIOLOGY

LABORATORY REVIEW

DIFFUSION AND OSMOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
There are three classifications of tonicity that one solution can have relative to another. What are they?
A
Isotonic
B
Hypertonic
C
Hyportonic
D
Hypotonic
Explanation: 

Detailed explanation-1: -Three terms-hypertonic, hypotonic, and isotonic-are used to describe whether a solution will cause water to move into or out of a cell: If a cell is placed in a hypertonic solution, there will be a net flow of water out of the cell, and the cell will lose volume.

Detailed explanation-2: -Hypotonic saline i.e., 0.45% sodium chloride or 0.25% sodium chloride with or without dextrose, 2.5% dextrose solution, etc are some of the examples of the hypotonic solutions that are hypotonic with respect to blood serum and are used as hypotonic intravenous solutions.

Detailed explanation-3: -A hypotonic solution is low in tonicity. It has a lower solute concentration of salt and sugars than the blood, and therefore is absorbed at a faster rate⁴.

Detailed explanation-4: -Know your tonicity Hypotonic has a lower concentration of fluid, sugars and salt than blood. Hypertonic has a higher concentration of fluid, sugars and salt than blood. Isotonic has similar concentration of fluid, sugars and salt to blood.

There is 1 question to complete.