Question

complete each statement explaining tonicity and osmolarity by selecting the correct word or phrase from each drop - down. 1. a cell placed in a hypotonic solution will (click to select) 2. a human red blood cell placed in a solution of (click to select) % nacl will experience no change in size. 3. normal saline is (click to select) to human blood cells. 4. a cell placed in a (click to select) solution means that the solute concentration is higher outside the cell than inside. 5. blood cells placed in a 500 mosm/l solution will (click to select) 6. cells that are experiencing osmosis of water towards the (click to select) are bathed in hypertonic solutions. 7. distilled water given intravenously will cause cells to expand as a result of rapid fluid (click to select) via osmosis from the ecf.

Explanation:

1. In a hypotonic solution, water moves into the cell, causing it to swell.
2. A 0.9% NaCl solution is isotonic to human red - blood cells, so no size change occurs.
3. Normal saline (0.9% NaCl) is isotonic to human blood cells.
4. In a hypertonic solution, the solute concentration outside the cell is higher than inside.
5. A 500 mOsm/L solution is hypertonic to blood cells, so cells will shrink as water moves out.
6. In hypertonic solutions, water moves out of the cells.
7. Distilled water is hypotonic, and rapid fluid influx into cells from the extracellular fluid (ECF) via osmosis causes cells to expand.

Answer:

1. Swell
2. 0.9
3. Isotonic
4. Hypertonic
5. Shrink
6. Outside
7. Influx