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Unit 1

AP Biology Unit 1 Review - Chemistry of Life


written by

Caroline Koffke

caroline koffke

published on august 5, 2020

Last updated on September 14, 2020

What you need to know for AP Bio Unit 1

๐ŸŽฅLive Stream Replay - Unit 1 Review Part I

๐ŸŽฅ Live Stream Replay - Unit 1 Review Part II

Here's an organized outline for ap bio unit 1 reviews. This outline has been adapted from the 2019 course description published by College Board. You can use this to build an ap bio unit 1 study guide.

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Structure of Water and Hydrogen Bonding

๐ŸŽฅ Live Stream Replay - Structure of Water & Hydrogen Bonding

  • The sequence and make up of all molecules determine the property of that molecule.
  • Water is a unique molecule that is polar due to an unequal distribution of charge. The properties of water and essential to the existence of life on earth.
  • Water is able to form hydrogen bonds with other water molecules due to its polarity, and this contributes to the properties of cohesion, adhesion, and surface tension.

Elements of Life

๐ŸŽฅ Live Stream Replay - Elements of Life

  • The elements of life are organized on the periodic table.
  • The elements most common to biological molecules are carbon, nitrogen, hydrogen, oxygen, and phosphorus.

Introduction to Biological Macromolecules

๐ŸŽฅ Live Stream Replay - Introduction to Biological Macromolecules

  • All living organisms are made up of proteins, lipids, carbohydrates, and nucleic acids.
  • Monomers are bound together in order to form these polymers.
  • Hydrolysis and dehydration synthesis are used to cleave and form covalent bonds between monomersย 

Properties of Biological Molecules

๐ŸŽฅ Live Stream Replay - Properties of Biological Molecules

  • The way in which a polymer is assembled contributes to the overall function of that polymer. This includes:
    • Nucleotides in nucleic acids, the amino acid order in proteins, sugar monomers in carbohydrates, and the saturation of lipids

Structure and Function of Biological Molecules

๐ŸŽฅ Live Stream Replay - Structure & Function of Biological Molecules

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  • Amino acids may be polar, nonpolar, sulfur-containing, acidic, or basic. The function of a protein depends on what amino acids make up a protein.
  • The order of nucleotides in DNA make up its genetic code. DNA is antiparallel, forms a double helix, and contains hydrogen bonds between nucleotides.
  • Lipids are nonpolar and hydrophobic. The presence of double bonds in lipids contributes to whether or not it is a saturated or unsaturated fat and contributes to its function.
  • Carbohydrates are broken down to make energy. The complexity of the carbohydrate structure determines the amount of energy needed to break it down.

Nucleic Acids

๐ŸŽฅ Live Stream Replay - Nucleic Acids

  • DNA and RNA are similar structures with the exceptions of a few key differences.
    • DNA is usually double stranded whereas RNA is usually single stranded.
    • DNA has a deoxyribose sugar, whereas RNA has a ribose sugar.
    • DNA has thymine, adenine, cytosine, and guanine, whereas RNA replaces thymine with uracil.

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Unit 1 Vocab

  • Macromolecule
  • Lipid
  • Fatty acid
  • Carbohydrate
  • Monosaccharide
  • Polysaccharide
  • Peptide bond
  • Amino acid
  • Nucleic acid
  • Nucleotide
  • Sugar-phosphate bond
  • Ribose
  • Deoxyribose
  • Hydrogen bond
  • Polar
  • Nonpolar
  • Cohesion
  • Adhesion
  • Surface tension
  • Hydrolysis
  • Dehydration synthesis
  • Monomer
  • Polymer
  • Phospholipid
  • Semiconservative replication

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๐ŸŽฅ Live Stream Replay - Unit 1 Review Part I

๐ŸŽฅ Live Stream Replay - Unit 1 Review Part II

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