AP Biology - Unit 1.2 Elements of Life
STS Biology Review Pod
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, ...
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AP Biology - Unit 1.1 Water and Hydrogen Bonding
STS Biology Review Pod
We review subatomic particles like protons, neutrons, and electrons. After, we discuss the nature of water's polarity, including covalent bonding and other types. Additionally, we consider specific heat capacity, heat of vaporation, expansion with freezing, ability to be a solvent, and cohesion. Join our interactive review sessions for just $65 per person, or $32.50 per person with friends! Sign up at or via text at 206-999-0666 or dm on insta: @seattle_tutoring_services or
info_outlineIn 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 or https://calendly.com/seattletutoringservices/new-meeting
Memorization trick for all elements, in order: Think of it like a letter
Dear CHON,
p.s.,
Sincerely,
Izim