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Brain Pop 1  Tasha finally got the chance to go on her favorite Norwegian Cruise ship. However, one day into the cruise, the ships meets a storm and leaves.

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Presentation on theme: "Brain Pop 1  Tasha finally got the chance to go on her favorite Norwegian Cruise ship. However, one day into the cruise, the ships meets a storm and leaves."— Presentation transcript:

1 Brain Pop 1  Tasha finally got the chance to go on her favorite Norwegian Cruise ship. However, one day into the cruise, the ships meets a storm and leaves every passenger stranded on an island. If Tasha and her family are not rescued and only have salt water to drink, explain why they would all die/perish.

2 Solvent –vs- Solute   Solvent   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 3

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

5 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 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 pass through a semipermeable membrane from an area of higher concentration to lower  3 Types of Osmotic solutions… 7

8 1. Hypotonic Cell will experience a net gain of water   This solution contains a lower concentration of solutes than the cell and therefore a higher concentration of water   Consequently, water will flow into the cell

9 2. Hypertonic   Cell will experience a net loss of water   Contains a higher concentration of solutes than the cell, therefore a lower concentration of water.   Consequently, water will flow out of the cell. 9

10 3. Isotonic   Cell will experience neither a net gain nor loss of water.   This type of solution contains an equal concentration of solutes as the cell and therefore an equal concentration of water.   Consequently, water will flow equally into and out of the cell. 10

11 3 Types of Osmotic Solutions

12 Discussion…  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? 12


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