Episode 53 brings biology, physics and chemistry all together to answer this age old question - why did the fart cross the room? Melanie begins by recapping the fluid mosaic model and kinetic energy (2:19). To get across the plasma membrane without the use of energy there are two options - sneak in between the phospholipids themselves (3:40) or use a transport protein (6:50). It's true - whoever smelt it most likely dealt it as solutes diffuse from high to low concentration.The Question of the Day asks (9:08) Describe the cellular condition of a red blood cell placed in a hypertonic solution.Thank you for listening to The APsolute RecAP: Biology Edition!(AP is a registered trademark of the College Board and is not affiliated with The APsolute RecAP. Copyright 2020 - The APsolute RecAP, LLC. All rights reserved.)Website:www.theapsoluterecap.comEMAIL:TheAPsoluteRecAP@gmail.comFollow Us:INSTAGRAMTWITTERFACEBOOKYOUTUBE