1. Osmosis

2. Solvent –vs- Solute Solvent Solute
substance with dissolving capability, thus can dissolve another substance. Solvents can be in a liquid, gaseous or solid state.
Solute
substance that dissolves in a solvent in order to form a solution. Solutes can be in liquid, gaseous or solid phase

3. Solvent + Solute=… Solution..
homogeneous mixture of two or more substances.
It is called a homogenous mixture.. Same throughout
No separation

4. Cell/Plasma Membrane
Is a selectively permeable lipid bilayer found in all cells.
Able to regulate what enters and exits the cell, thus transporting materials for a cell’s survival.

5. What is the makeup?
The cell membrane consists primarily of a thin layer of bilipid cells
Arrange so that the hydrophobic (water hating) "tail" regions are shielded from the surrounding polar fluid
Hydrophilic (water loving) "head" regions faces the extracellular polar fluids

6. Homeostasis
Defined as the ability to maintain stable internal conditions in spite of the changing external conditions.
Diffusion: Movement of a substance from a higher concentration to a lower

7. Osmosis
Ability of a fluid to passively transport (no energy needed) through a semipermeable membrane from an area of higher concentration to lower
3 Types of Osmotic solutions…

8. 1. Hypotonic Cell will experience a net gain of water
Consequently, water will flow into the cell
Cell will swell

9. 2. Hypertonic Cell will experience a net loss of water
Consequently, water will flow out of the cell.
Cell will shrink, shrivel

10. 3. Isotonic Cell will experience neither a net gain nor loss of water.
Consequently, water will flow equally into and out of the cell.
Cell will stay the same-no change

11. 3 Types of Osmotic Solutions

12. Exit Slip
Tyrone wanted to make sure he drank enough water before he started school. He drank 5 liters of water and headed out. Standing up, he felt dizzy and passed out.
He later died…. Why?