Passive Transport

Main Ideas of Passive Transport:

• Requires no energy
• Moves along a concentration gradient
• High to Low concentration

Types of Passive Transport:

• Diffusion: The passive transport of any material, such as perfume molecules.
• Osmosis: The passive transport of water.

What Passive Transport Attempts:

• Passive transports attempts to reach equilibrium in the environment. Diffusion moves a large concentration of a smell or other molecule until it fills the room, but is much more faint due to the spread of molecules.
• Osmosis attempts to do the same in cells. Isotonic solutions are where the cell and water it's in are the same. Hypertonic solutions is when there is a high concentration of solute which draws the water towards it, shrinking the cell. Hypotonic solutions are when there is a higher concentration of solute in the cell, drawing in water making it bigger.

I learned most of this stuff in class and have many notes on it. It was cool to see that when things are in high concentration they automatically start to spread out. I liked this a lot. This can be used outside  of biology as well. If you stuff every lose thing into your closet, a small space, it will have a high concentration in the closet. By diffusion, that stuff will want to spread to the lower concentration to attempt to even it out. This causes the closet door to open and stuff to spill out.

Sources: Mr. Black's Fall Biology Honors Class 

"Cite A Website - Cite This For Me". Biologycorner.com. N.p., 2017. Web. 3 Jan. 2017.

"One-School". One-school.net. N.p., 2017. Web. 3 Jan. 2017.

Biology Corner,. Isotonic. Web. 3 Jan. 2017.