Lab 4 Flashcards
Know what happens to an RBC when placed in isotonic, hypotonic, and hypertonic solution Define diffusion Define osmosis
What happens to red blood cells placed in an isotonic solution?
No net movement of water, the cell maintains its normal shape.
What happens to a red blood cell in a hypotonic solution?
Water enters the cell, causing it to swell and potentially burst (hemolysis).
What happens to a red blood cell in a hypertonic solution?
Water leaves the cell, causing it to shrink (creation).
What is diffusion?
Diffusion is the passive movement of molecules from an area of higher concentration to an area of lower concentration until equilibrium is achieved.
What is osmosis?
Osmosis is the passive movement of water across a semipermeable membrane from a lower concentration of solutes to a higher concentration until equilibrium is achieved.