STS Biology Review Pod

Episode 1.3: Intro to Macromolecules In this episode of the STS Biology Review Pod, Schuyler and Leslie dive into the "molecules of life" that make all living things possible. Whether you're prepping for AP Bio or just curious about how our bodies work, this episode breaks down the four major classes of macromolecules: carbohydrates, lipids, proteins, and nucleic acids. We cover: What macromolecules are and how they're built from monomers The chemical reactions that put these building blocks together (dehydration synthesis) and take them apart (hydrolysis) The unique functions of carbohydrates, lipids, proteins, and nucleic acids in cells and organisms Why protein structure is so important—and how changes can have major consequences Real-life examples, from lactose intolerance to genetic engineering Fun memory tricks to keep all these terms straight for your next test! Plus: Learn how these fundamental molecules interact in living systems, and hear about our weekly interactive review sessions for even more biology support. For more details, group discounts, or to sign up, check out our show notes or visit https://tutoringservicesseattle.com/. You can also text 206-999-0666 to register.

In this episode, we study the essential elements that form the foundation of all living things. We'll introduce the "Big Four" elements—carbon, hydrogen, oxygen, and nitrogen—and break down how each one is crucial to core biological molecules and processes. [memorization acronym for big four: CHON] You'll learn how carbon's versatility makes complex life possible, why hydrogen and oxygen are key for water's remarkable properties, and how nitrogen is vital for proteins and DNA. We also spotlight phosphorus, sulfur, [memorization acronym P.S.] and trace elements like iron, zinc, iodine, and magnesium [memorization acronym IZIM ]. We explain their specialized roles in supporting life. By the end, you'll see how just a small handful of elements orchestrate the complexity of everything from cells to ecosystems. Join our interactive review sessions for just $65 per person, or $32.50 per person with friends! Sign up at https://tutoringservicesseattle.com/podcast-for-ap-biology-course/ or via text at 206-999-0666 or DM on insta: @seattle_tutoring_services . Memorization trick for all elements, in order: Think of it like a letter Dear CHON, p.s., Sincerely, Izim