Question

Biology 201 Lab Home Work Date 3a in the fore below state the type of solution in each beaker, and response of each cell. 10% salt 2% salt 30% salt 0% 10% Sat 10% Sa water will move in/out of the Cell will Beaker A the solution is Beaker B the solution is , water will move in/out the cell will Beaker C the solution is water will move in/out the cell wil 3b From the point of view of cell. The cell in beaker A is The cell in beaker B is The cell in beaker Cs to the solution in the beaker to the solution in the beaker to the solution in the beaker

Answer 1

The principle of osmosis can be applied to solve the problems. Simply put, osmosis states that water will move from a position of lower solute concentration, to a position where the solute concentration is higher. The outcome of this movement of water/solvent is to ensure that the concentration of solutes is equal both inside and outside the cell.

Solutions

3.a

Beaker A: The solution is isotonic, water will neither move in or out; the cell will neither swell nor shrink.

Beaker B: The solution is hypotonic, water will move in; the cell will swell.

Beaker C: The solution is hypertonic, water will move out of the cell; the cell will shrink.

3.b

The cell in beaker A is Isotonic to the solution in the beaker.

The cell in beaker B is Hypertonic to the solution in the beaker.

The cell in beaker C is Hypotonic to the solution in the beaker.