What you need to know for AP Bio Unit 1
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
- 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
- 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
- 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 monomers
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
- 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.
- 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.
Unit 1 Vocab
- Fatty acid
- Peptide bond
- Amino acid
- Nucleic acid
- Sugar-phosphate bond
- Hydrogen bond
- Surface tension
- Dehydration synthesis
- Semiconservative replication