1. Solutions
Biology 11

2. Vocab:
Solution: is a homogeneous mixture of one or more solutes dissolved in a solvent.
Solvent: the substance in the greater amount, in which a solute dissolves, usually a liquid
Solute: dissolved substance, lesser amount  

3. Types of solutions:
Hypertonic
Hypotonic
Isotonic

4. HYPERTONIC solutions are those in which more solute is present.
– concentration of dissolved substances is higher outside the cell than inside.
(Water will move OUT OF THE CELL)

5. HYPOTONIC solutions are those with less solute present.
– concentration of dissolved substances is lower outside the cell than inside.
(Water will move INTO THE CELL)

6. ISOTONIC
solutions have equal (iso-) concentrations of dissolved substances. Solute concentrations are the same outside the cell and inside.
(Equal amounts of water movement in and out of the cell, with a net flow is zero).

8. Animal cell in different solutions
isotonic
hypotonic
hypertonic

9. Plant cell in different solutions
isotonic
hypotonic
hypertonic

10. Turgor pressure
The pressure exerted by the cytoplasm (and water in the cell) against the non-living cell wall of plant cells.