Newsflash Transport Proteins on Strike Asiggnment Incomplete

Jb-Bakrudin Muhammad

Biology 105

April/22/16

Newsflash Transport Proteins on Strike Assignement

1. The phospholipids chant refers to the fact that they are responsible for giving the plasma membrane being the ability to semi-permeable and selectively permeable; they are the deciding in what is and is not allowed in the cell.

2. Aquaporins are the proteins responsible for transporting water across the plasma membrane. Another way water can travel across the plasma membrane is through osmosis; however this method is directly related to the concentration of water in and out of the cell; during osmosis water will travel to the area with the lowest water concentration from an area of high water concentration, the basic principle behind this is that any system not at equilibrium is going to try to achieve equilibrium. It is because of this that we can conclude that osmosis is both a conditional and efficient way to transport water through the plasma membrane.

3. The basis of their claims comes from the fact that they use facilitated diffusion, a type of diffusion that requires a transport protein in order for it to allow specific molecules in or out of the cell, these transport proteins were specifically designed to allow certain molecules through and only those molecules through. Facilitated diffusion relies solely on the concentration gradient and does not require the use of ATP when transporting molecules

4.No, Co2 and O2 can diffuse into the cell without the help of a transport protein.

5. Gas exchange is a part of both the Respiratory System and the Circulatory system. The gas exchange involves the use of diffusion, which works by causing a molecule or chemical in an area of higher concentration to go into an area of low concentration in an attempt to achieve equilibrium. Since gas molecules are not that large they can normally diffuse into the cell without the use of a transport protein or ATP .

6. I think in the great dehydration event water...