48 Visual Connection Questions

1. Figure 5.12 A doctor injects a patient with what the doctor thinks is an isotonic saline solution. The patient dies, and an autopsy reveals that many red blood cells have been destroyed. Do you think the solution the doctor injected was really isotonic?

2. Figure 5.16 Injecting a potassium solution into a person’s blood is lethal. Capital punishment and euthanasia utilize this method in their subjects. Why do you think a potassium solution injection is lethal?

3. Figure 5.20 If the pH outside the cell decreases, would you expect the amount of amino acids transported into the cell to increase or decrease?