Episode 49 recaps these very diverse group of hydrophobic, nonpolar molecules. Although all containing the elements C, H and O (1:10), lipids are categorized into distinct groups: fats (2:00), waxes (4:00), phospholipids (4:40) and steroids (5:48). Can you distinguish between a saturated and unsaturated fatty acid chain? Melanie wraps up the episode with Unit Connections and describes several exam exclusions (6:08).The Question of the Day asks (7:20) Besides lipids, what other group of biological molecules forms hormones?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