WGU C785 FINAL
EXAM2022/2021 WITH ALL
DETAILED AND CORRECT
ANSWERS
What is the basic structure of an amino acid? What do they look like?
(correct answer)amino group (NH2 or NH3), carboxyl group (COO or COOH), alpha carbon (C), and
variable group
How do you identify the 3 different types of side chains: non-polar/hydrophobic, polar, and charged?
(correct answer)Non-polar/hydrophobic - end with CH or "can't have" water. Polar - end with OH, SH, or
NH. Charged - end with a charge
what kinds of bonds do each of the 3 different types of side chains make?
(correct answer)ionic, hydrophobic/non-polar, charged
What are the 4 levels of protein structure?
(correct answer)Primary - linear structure, Secondary - Folded into helix or pleated sheet caused by
hydrogen bonding, tertiary - 3D structure caused by side chain interactions, quaternary - 1+ amino acid
chains combine = multiple subunits MUST have 1+ subunit
What enviormental change breaks each type of bond?
(correct answer)hydrophobic - temperature change, ionic - salt or decreased pH, hydrogen -
temperature, change in pH, disulfide - reducing agents
,what type of amino acid side chain leads to protein aggregration?
(correct answer)hydrophobic bonds
how do environmental changes affect protein folding?
(correct answer)Extreme temp can cause hydrogen bonds to break apart = malformation of protein
folding
how do mutations affect protein structure?
(correct answer)Can cause structure to change. Protein loses form = loses function. May form a different
protein.
What is an electron?
(correct answer)Negatively charged atom on outer ring for bonding
What is energy:
(correct answer)Power derived fro chemical interaction
what are covalent bonds?
(correct answer)chemical bond, atoms share 1+ valence electrons
what is an ionic bond?
(correct answer)bond between positive and negative
what is a hydrogen bond?
(correct answer)weak bond between positive and negative
, with an amino?
(correct answer)piece of amino acid, NH2 or NH3
what is a carboyxl?
(correct answer)piece of amino acid, COO or COOH
What is hydrophobic?
(correct answer)Doesn't like water, end with CH
what is hydrophilic?
(correct answer)Water Lovering, end with OH, NH, or SH
what is disulfide bond?
(correct answer)strongest bond between reduction agents, formed between SH's.
what are zwitterions?
(correct answer)amino with positive and negative charges = overall charge of zero
what is a polypeptide
(correct answer)polymer of amino acids
What is dehydration synthesis?
(correct answer)Process of forming peptide bonds
EXAM2022/2021 WITH ALL
DETAILED AND CORRECT
ANSWERS
What is the basic structure of an amino acid? What do they look like?
(correct answer)amino group (NH2 or NH3), carboxyl group (COO or COOH), alpha carbon (C), and
variable group
How do you identify the 3 different types of side chains: non-polar/hydrophobic, polar, and charged?
(correct answer)Non-polar/hydrophobic - end with CH or "can't have" water. Polar - end with OH, SH, or
NH. Charged - end with a charge
what kinds of bonds do each of the 3 different types of side chains make?
(correct answer)ionic, hydrophobic/non-polar, charged
What are the 4 levels of protein structure?
(correct answer)Primary - linear structure, Secondary - Folded into helix or pleated sheet caused by
hydrogen bonding, tertiary - 3D structure caused by side chain interactions, quaternary - 1+ amino acid
chains combine = multiple subunits MUST have 1+ subunit
What enviormental change breaks each type of bond?
(correct answer)hydrophobic - temperature change, ionic - salt or decreased pH, hydrogen -
temperature, change in pH, disulfide - reducing agents
,what type of amino acid side chain leads to protein aggregration?
(correct answer)hydrophobic bonds
how do environmental changes affect protein folding?
(correct answer)Extreme temp can cause hydrogen bonds to break apart = malformation of protein
folding
how do mutations affect protein structure?
(correct answer)Can cause structure to change. Protein loses form = loses function. May form a different
protein.
What is an electron?
(correct answer)Negatively charged atom on outer ring for bonding
What is energy:
(correct answer)Power derived fro chemical interaction
what are covalent bonds?
(correct answer)chemical bond, atoms share 1+ valence electrons
what is an ionic bond?
(correct answer)bond between positive and negative
what is a hydrogen bond?
(correct answer)weak bond between positive and negative
, with an amino?
(correct answer)piece of amino acid, NH2 or NH3
what is a carboyxl?
(correct answer)piece of amino acid, COO or COOH
What is hydrophobic?
(correct answer)Doesn't like water, end with CH
what is hydrophilic?
(correct answer)Water Lovering, end with OH, NH, or SH
what is disulfide bond?
(correct answer)strongest bond between reduction agents, formed between SH's.
what are zwitterions?
(correct answer)amino with positive and negative charges = overall charge of zero
what is a polypeptide
(correct answer)polymer of amino acids
What is dehydration synthesis?
(correct answer)Process of forming peptide bonds
