Question

A red blood cell placed in a hypertonic solution will shrink in a process called crenation. A red blood cell placed in a hypotonic solution will swell and potentially burst in a process called hemolysis. To prevent crenation or hemolysis, a cell must be placed in an isotonic solution such as 0.9% (m/v) NaCl or 5.0% (m/v) glucose. This does not mean that a cell has a 5.0% (m/v) glucose concentration; it just means that 5.0% (m/v) glucose will exert the same osmotic pressure as the solution inside the cell, which contains several different solutes. A red blood cell is placed into each of the following solutions. Indicate whether crenation, hemolysis, or neither will occur. Solution A: 3.21% (m/v) NaCl Solution B: 1.65% (m/v) glucose Solution C: distilled H2O Solution D: 6.97% (m/v) glucose Solution E: 5.0% (m/v) glucose and 0.9%(m/v) NaCl Drag each solution to the appropriate bin.

Answer 1

Answer:

Explanation:

Solution A: 3.21% (m/v) NaCl - Crenation Solution

Solution B: 1.65% (m/v) glucose - Hemolysis Solution

Solution C: distilled H2O - Hemolysis Solution

Solution D: 6.97% (m/v) glucose - Crenation Solution

Solution E: 5.0% (m/v) glucose and 0.9%(m/v) NaCl – Crenation solution

Answer 2

The correct answer is:

A: 3.21% (m/v) NaCl Solution will cause crenation because it is hypertonic solution (more solutes)  

B: 1.65% (m/v) glucose Solution will cause hemolysis because it is hypotonic solution

C: distilled H2O Solution will cause hemolysis because it is hypotonic solution

D: 6.97% (m/v) glucose Solution will cause crenation because it is hypertonic solution (more solutes)

E: 5.0% (m/v) glucose and 0.9%(m/v) NaCl will cause neither crenation or hemolysis because it is isotonic solution.