Thank our Membrane Cell membrane and Cell Transport

Thank our Membrane Cell membrane and Cell Transport Original song “The Sounds of Silence, ” sung by Simon and Garfunkel Biology Parody sung by Marybeth Mechalske

Explaining the importance of our membrane as it protects us from toxins This Photo by Unknown Author is licensed under CC BY-ND Plasma membrane, my old friend I do have need of you again Because of something that is waiting Left outside the membrane hating To those toxins that have yet to be obtained Won’t remain With the help of our membrane

Explaining how the plasma membrane structure functions In the membrane of our cell Lipid layers, is the shell The middle section has a big fear But the rest loves if water comes near The membrane decides what comes in Acts like skin And includes some proteins This Photo by Unknown Author is licensed under CC BY-SA

Comparing the mechanisms of active vs. passive transport (diffusion and osmosis) When molecules need to move In or out, they start to groove Active transport uses ATP Passive transport needs no energy Osmosis moves water but not other molecules It helps with creating homeostasis This Photo by Unknown Author is licensed under CC BY

Explaining changes in osmotic pressure that occurs when cells are placed in solutions of differing concentrations. High (water) pressure inside cells Water moves in and it swells When there is more solute outside Water leaves it doesn’t want to hide Water is always on the move From high (solute) concentrations This Photo by Unknown Author is licensed under CC BY-SA

Explaining one way active transport maintains homeostasis And when ATP is made Those big chemicals can’t stay Active transport will move them out Protein pumps are needed don’t pout Potassium moves to the inside of the cell, isn’t that swell out with sodium Thankful for our membrane This Photo by Unknown Author is licensed under CC BY-SA-NC Songwriter of original song, “The Sounds of Silence”: Paul Simon Biology version Songwriter: Marybeth Mechalske