You place a red blood cell in an unknown solution and it begins to swell then bursts. Which of the following can you correctly conclude? a   the solution is hypotonic b   the solution is hypoosmotic  c   both A and B d   neither A nor B

Many choice: Which of the following would cause cells to swell?   Select one or more: a. Using a syringe to inject a high-protein solution directly into blood vessels b. Drinking pure water c. Drinking a solution with lots of sodium.   d. Drinking a solution with lots of potassium

Statement 1: The direction of diffusion of a solute across a membrane is determined by its concentration gradient and always moves toward equilibrium. Statement 2: In passive transport, solutes move down the gradient from a region of low concentration to a region of high concentration. A Both statements are true. Both statements are false. C) Statement 1 is true. Statement 2 is false. Statement 1 is false. Statement 2 is true.

If you place a sample of your blood (which is primarily red blood cells) in a beaker of distilled water, what do you think would happen to the RBCs?  Why?  Is water moving into or out of the cells?  Is the water hypotonic, isotonic, or hypertonic compared to the intracellular fluid in the RBCs?  Knowing that normal cellular osmolarity is 300 mOsmol, what do you think would happen if you mixed your RBCs with a 1.8% NaCl solution?  Why? What is the osmolarity of the 1.5% NaCl solution?  RBCs with distilled water and why  Is water moving into or out of the RBCs in this solution? Is the water hypo-, iso- or hypertonic? RBCs with 1.8% NaCl solution and why  Osmolarity (osmol/L) of the 1.8% NaCl