Are the following solutions isotonic, hypotonic, or hypertonic compared with a red blood cell?
Drag the appropriate solutions to their respective bins.
0.9% (m/v) NaCI
8 % (m/v) glucose
distilled H20
4% (m/v) glucose
0.9% (m/v) NaCI - isotonic
8% (m/v) glucose - hypertonic
distilled H20 - hypotonic
4% (m/v) glucose - hypertonic
Isotonic:
- 0.9% (m/v) NaCI
Hypotonic:
- Distilled H20
Hypertonic:
- 8% (m/v) glucose
- 4% (m/v) glucose
To determine whether the solutions are isotonic, hypotonic, or hypertonic compared with a red blood cell, you need to compare the concentration of solutes in each solution with the concentration of solutes inside the red blood cell.
First, let's understand what these terms mean:
- Isotonic: It means that the concentration of solutes inside the solution is the same as the concentration of solutes inside the red blood cell.
- Hypotonic: It means that the concentration of solutes inside the solution is lower than the concentration of solutes inside the red blood cell.
- Hypertonic: It means that the concentration of solutes inside the solution is higher than the concentration of solutes inside the red blood cell.
Now, let's analyze each solution and compare them with a red blood cell:
1. 0.9% (m/v) NaCl: This solution has a concentration of 0.9% sodium chloride. Red blood cells have a similar concentration of solutes, so this solution is isotonic compared with a red blood cell.
2. 8% (m/v) glucose: This solution has a concentration of 8% glucose. Red blood cells do not contain glucose, so this solution is hypotonic compared with a red blood cell.
3. Distilled H2O: This is pure water with no solutes. Red blood cells contain various solutes, including salts and proteins, so distilled water is hypotonic compared with a red blood cell.
4. 4% (m/v) glucose: This solution has a concentration of 4% glucose. As mentioned earlier, red blood cells do not contain glucose, so this solution is also hypotonic compared with a red blood cell.
To summarize:
- Isotonic: 0.9% (m/v) NaCl
- Hypotonic: 8% (m/v) glucose, distilled H2O, 4% (m/v) glucose