WGU C785 Biochemistry Unit 2 QUESTIONS AND ANSWERS ALL CORRECT

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WGU C785 Biochemistry Unit 2 Amino Group Correct Answer: Consists of hydrogen and nitrogen atoms (NH3+) Carboxyl Group Correct Answer: Consists of carbons and oxygens (COO-) R Group Correct... Answer: The variable group within an Amino Acid Amino Acid Backbone Correct Answer: Consists of the Amino Group (NH3+) the Carboxyl Group (COO-) and the Alpha Carbon that bonds to a Hydrogen Monomer Correct Answer: A small chemical unit that makes up a polymer Polymer Correct Answer: A long molecule consisting of many similar or identical monomers linked together. Polypeptide Correct Answer: A polymer (chain) of many amino acids linked together by peptide bonds. Peptide Bond Correct Answer: Bonds that connect amino acids. Primary Protein Structure Correct Answer: Sequence of amino acids forming a protein or polypeptide chain, the most basic element of its structure. Alpha Carbon Correct Answer: The central carbon atom of each amino acid Secondary Protein Structure Correct Answer: Shape formed by hydrogen bonding of amino acid back bone- usually an alpha helix or beta sheet Tertiary Protein Structure Correct Answer: The three-dimensional shape of a polypeptide due to interactions of the R groups of the amino acids by covalent bonds Quaternary Protein Structure Correct Answer: Multiple polypeptide subunits held together by R group interactions Beta Pleated Sheet Correct Answer: A secondary structure found in proteins in which "pleats" are formed by hydrogen bonding between atoms on the backbone of the polypeptide chain Alpha Helix Correct Answer: A spiral shape constituting one form of the secondary structure of proteins, arising from a specific hydrogen-bonding structure. Hydrophobic Correct Answer: Afraid of the water, wants to be on the inside Hydrophilic Correct Answer: Water loving, wants to be on the outside Polar Amino Acids Have Side Chains of What Atoms? Correct Answer: OH, NH2 or SH Non-Polar Amino Acids Have Side Chains of What Atoms? Correct Answer: CH, CH2, CH3 and H only Charged Amino Acids Have Side Chains of What Atoms? Correct Answer: Any atoms that have a + or - charge Polar Side Chains are Hydrophilic or Hydrophobic? Correct Answer: Hydrophilic Non-Polar Side Chains are Hydrophilic or Hydrophobic? Correct Answer: Hydrophobic Charged Side Chains are Hydrophilic or Hydrophobic? Correct Answer: Hydrophilic Disulfide Bond Correct Answer: The covalent bond formed between the sulfur atoms of two cysteines in a protein; typically causes the protein to fold by bringing otherwise distant parts of the protein close together Hydrogen Bond Correct Answer: Weak attraction between a hydrogen atom and another atom Ionic Bond Correct Answer: A chemical bond resulting from the attraction between oppositely charged ions. Hydrophobic Interactions Correct Answer: Interactions between Non-polar amino acids grouping together to avoid water Conditions That Disrupts the Bonds of Polar Amino Acids Correct Answer: Salts or changes in pH Conditions That Disrupts the Bonds of Charged Amino Acids Correct Answer: Salts or changes in pH Conditions That Disrupts the Bonds of Non-Polar Amino Acids Correct Answer: Heat What Breaks a Disulfide Bond? Correct Answer: Reduc [Show More]

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