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
Solution A: 3.21% (m/v) NaCl (crenation)
Solution B: 1.65% (m/v) glucose (hemolisis)
Solution C: distilled H2O (Hemolysis)
Solution D: 6.97% (m/v) glucose (crenation)
Solution E: 5.0% (m/v) glucose and 0.9%(m/v) NaCl (Creanation)
Remeber this is a red blood cell, not animal cell.
A- crenation
B- hemolysis
C- hemolysis
D- crenation
E- creantion
Serw and Gabby are correct.
9.42% (m/v) glucose is crenation as well.
What happens red blood cell are placed in differt solution?
Solution A: Crenation will occur because the red blood cell will feel salty about it.
Solution B: Neither crenation nor hemolysis will occur because the red blood cell will be in a sweet spot.
Solution C: Hemolysis will occur because the red blood cell will burst out laughing in the pure water.
Solution D: Neither crenation nor hemolysis will occur because the red blood cell will have a balanced glucose intake.
Solution E: Neither crenation nor hemolysis will occur because the red blood cell will have a mix of salty and sweet, which is an interesting flavor combo.
To determine whether crenation, hemolysis, or neither will occur when a red blood cell is placed into each of the given solutions, we need to consider the concept of osmosis.
Osmosis is the movement of water molecules across a semi-permeable membrane from an area of lower solute concentration to an area of higher solute concentration. Red blood cells contain solutes, such as ions and proteins, inside their cell membrane. When placed in a solution, water molecules will move in or out of the cell depending on the concentration of solutes in the solution.
Here's the process to determine the effect of each solution on the red blood cell:
1. Solution A: 3.21% (m/v) NaCl:
- NaCl is a solute that can dissociate into Na+ and Cl- ions.
- Compared to the intracellular concentration of solutes, Solution A has a higher concentration of solutes.
- Thus, water molecules will move out of the red blood cell to the solution, causing the cell to shrink or crenate. Therefore, crenation will occur.
2. Solution B: 1.65% (m/v) glucose:
- Glucose is a solute that cannot pass through the cell membrane.
- Compared to the intracellular concentration of solutes, Solution B has a lower concentration of solutes.
- Therefore, water molecules will move into the red blood cell, causing it to swell or undergo hemolysis. Thus, hemolysis will occur.
3. Solution C: distilled H2O:
- Distilled water has a lower solute concentration than the red blood cell.
- Water molecules will move into the cell to balance the solute concentration, causing the cell to swell or undergo hemolysis. Thus, hemolysis will occur.
4. Solution D: 6.97% (m/v) glucose:
- Similar to Solution B, water molecules will move from an area of lower solute concentration (inside the cell) to an area of higher solute concentration (Solution D).
- Therefore, water molecules will move out of the red blood cell, causing the cell to shrink or crenate. Thus, crenation will occur.
5. Solution E: 5.0% (m/v) glucose and 0.9% (m/v) NaCl:
- This solution contains both glucose and NaCl.
- The concentration of glucose is lower inside the cell, and the concentration of NaCl is higher inside the cell.
- Both glucose and NaCl can contribute to osmosis, but NaCl has a stronger effect.
- Since the concentration of NaCl is higher inside the cell, water molecules will move into the cell. However, glucose will also attract water molecules into the cell, counteracting the effect of NaCl to some extent.
- The net effect will depend on the overall concentration gradient, but in general, water molecules will move into the cell more than out of it.
- As a result, the red blood cell will slightly swell, but not to the point of hemolysis. Hence, neither crenation nor hemolysis will occur.
C
H
H
C
C