8. For each of the following scenarios described where a molecule or ion is moving from one side of a membrane to the ot

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8 For Each Of The Following Scenarios Described Where A Molecule Or Ion Is Moving From One Side Of A Membrane To The Ot 1 (30.06 KiB) Viewed 36 times

8. For each of the following scenarios described where a molecule or ion is moving from one side of a membrane to the other, select the method by which the molecule or ion is moving. Each answer can be used more than once, or not at all. a. Simple Diffusion b. Facilitated diffusion by a channel protein c. Facilitated diffusion by a carrier/transport protein d. Active transport by a pump e. Could be B or C, not enough information is given • Estrogen is a hydrophobic steroid hormone. It will cross the cell membrane, even if ATP is not available. Facilitated diffusion by carrier/transport protein • Glyphosphate (also known as Round-up) is an herbicide that enters the cell. It is a polar molecule. Glyphosphate only enters plant cells if ATP is available. About 78% of the earth's atmosphere is composed of nitrogen gas, N₂. This gas is found in the blood. How does this gas cross the cell membrane of the lung cells and enter the bloodstream? • Cystic fibrosis is a disease caused by the inability of cells to move chlorine ions (CI) out of the cell. In normal cells, there is a net flow of chlorine ions from an area of high concentration inside of the cell, to an area of low concentration outside of the cell. Chlorine ions are able to move to the outside of the cell with the help of a protein that does not change shape. Facilitated diffusion by carrier/transport protein • Hydrogen cations are small atoms that move from low concentration to high concentration to create a negative membrane potential. Simple diffusion