Summary: Cell Membrane Transport

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faster rate than a cell with a lower concentration. My hypothesis relates to the material studied because it was all about membrane transport. The KMnO4 must diffuse throughout the membrane in order to build up the concentration of the solution. The membrane concentration of KMnO4 is very high, making it easy for molecules to diffuse to the lower concentration outside of the membrane. My results support my hypothesis. The solution with the highest concentration (100mM) diffused at a quickly rate than either of the lower solutions, (20mM or 4mM). Drugs enter the cell membrane by one of three ways, transcellular transfer, paracellular transfer, or by porous filter. Transcellular transfer occurs when cells are very tight together, the molecules pass by going …show more content…
Lets explore a few drugs; heroin, ecstasy, marijuana, methamphetamine, alcohol, cocaine, and LSD. Heroin effects the opiate receptor in the brain and causes dopamine to be over released. This effects the brain because heroin acts as a painkiller. (University of Utah 2006) Ecstasy makes the serotonin transporters do their job backwards. They release excess serotonin. This effects the brain because it controls how humans sleep, eat, and act. (University of Utah 2006). Marijuana effects the opiate receptor in the brain and causes dopamine to be over released these effects the brain by relaxing the brain, slowing the brain, and effecting the short term memory. (University of Utah 2006). Methamphetamine is taken in by dopamine receptors, pushing out the dopamine molecules. This effects the brain by making humans feel stoked. (University of Utah 2006). Alcohol first alters GABA and increases it, then it stops glutamate from carrying out its function. It then affects the part of the brain that controls memory, mobile ability, and it alters how you make your decision. (University of Utah