https://padlet.com/mgoff23/uyp7yoatu6g7 Pgs. 65-69 en-us 2017-11-02 15:30:58 UTC 2026-02-03 04:25:55 UTC hello@padlet.com mgoff23 https://padlet.com/mgoff23/uyp7yoatu6g7/wish/202966828 There are two types of Passive Transport, Diffusion and Osmosis. Diffusion is the process where molecules move from a concentration that is high, to one that is low. Osmosis is the diffusion of water molecules across a selectively permeable membrane. That means while the water molecules are across the membrane, they are moving to the lower concentration. Many cellular processes depend on Osmosis. ]]> 2017-11-02 15:36:55 UTC https://padlet.com/mgoff23/uyp7yoatu6g7/wish/202966828 asigman23 https://padlet.com/mgoff23/uyp7yoatu6g7/wish/202967287 Some Food particles may be to big to pass through the membrane, so, the membrane goes through the process of endocytosis. Endocytosis is the process in which the membrane changes shape and wraps around the particle. After the membrane completely surrounds the particle, it creates a vacuole. The other thing that might happen is called exocytosis. Exocytosis allows the food particle to leave the cell. The first thing that happens in this process is when a vacuole connects to the membrane. This creates a hole outside of the cell. This allows the contents of the connected vacuole to seep out of the cell. Both of these processes require a lot of the cells energy.]]> 2017-11-02 15:37:37 UTC https://padlet.com/mgoff23/uyp7yoatu6g7/wish/202967287 mmurchison23 https://padlet.com/mgoff23/uyp7yoatu6g7/wish/202967589 This happens when cells use their own energy to move things past the cell membrane

]]> 2017-11-02 15:37:54 UTC https://padlet.com/mgoff23/uyp7yoatu6g7/wish/202967589 sbrannan23 https://padlet.com/mgoff23/uyp7yoatu6g7/wish/202967702 Vocabulary: 
Selectively Permeable: some substances can cross the membrane while others cannot. 
         Every cell is surrounded by a cell membrane. The cell membrane consists of a double layer of lipid molecules. Here and there in the double layer of lipid molecules , you can see proteins, some with chains of carbohydrates attached. 
Other carbohydrate chains sit on thesurface of the membrane. All these molecules play important roles in helping materials move through the cell membrane. Some materials  move freely across the cell membrane, and some do not move at all.

]]> 2017-11-02 15:38:05 UTC https://padlet.com/mgoff23/uyp7yoatu6g7/wish/202967702 fguenee23 https://padlet.com/mgoff23/uyp7yoatu6g7/wish/202970050 FORMS OF PASSIVE TRANSPORT :
If you have ever ridden a bicycle down a hill, you know that it takes hardly and of your energy to fast. But you do have to use energy to pedal back up the hill. The movement of disolved materials across a cell memebrane without using the cell’s energy is called passive transport. 
DIFFUSION:
Molecules are always morning. As they more, they bump into another. The more molecules there are in a space, the more they are said to be concentrated in that space. Over time, as molecules continue colliding and moring apart, they become less concentrated.
OSMOSIS:
Like oxygen, water passes easily into and out of a cell across the cell membrane. Osmosis is the diffusion of water molecules across a selectively permeable membrane. Osmosis can have important effects on cells and entire organisms. Under certain conditions, osmosis can cause water to more out of the cell more quickly than it moves in.

]]> 2017-11-02 15:41:35 UTC https://padlet.com/mgoff23/uyp7yoatu6g7/wish/202970050 asigman23 https://padlet.com/mgoff23/uyp7yoatu6g7/wish/203431830 2017-11-03 18:22:02 UTC https://padlet.com/mgoff23/uyp7yoatu6g7/wish/203431830