WGU C785 Final Exam with All the Correct Answers
What is the basic structure of an amino acid? What do they look like? -Answer- amino
group (NH2 or NH3), carboxyl group (COO or COOH), alpha carbon (C), and variable
gr
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WGU C785 Final Exam with All the Correct Answers
What is the basic structure of an amino acid? What do they look like? -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? -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? -Answerionic, hydrophobic/non-polar, charged
What are the 4 levels of protein structure? -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? -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? -Answer- hydrophobic
bonds
how do environmental changes affect protein folding? -Answer- Extreme temp can
cause hydrogen bonds to break apart = malformation of protein folding
how do mutations affect protein structure? -Answer- Can cause structure to change.
Protein loses form = loses function. May form a different protein.
What is an electron? -Answer- Negatively charged atom on outer ring for bonding
What is energy: -Answer- Power derived fro chemical interaction
what are covalent bonds? -Answer- chemical bond, atoms share 1+ valence electrons
what is an ionic bond? -Answer- bond between positive and negative
what is a hydrogen bond? -Answer- weak bond between positive and negative
with an amino? -Answer- piece of amino acid, NH2 or NH3
what is a carboyxl? -Answer- piece of amino acid, COO or COOH
What is hydrophobic? -Answer- Doesn't like water, end with CHwhat is hydrophilic? -Answer- Water loving, end with OH, NH, or SH
what is disulfide bond? -Answer- strongest bond between reduction agents, formed
between SH's.
what are zwitterions? -Answer- amino with positive and negative charges = overall
charge of zero
what is a polypeptide -Answer- polymer of amino acids
What is dehydration synthesis? -Answer- Process of forming peptide bonds
what is hydrolysis? -Answer- adding water to destroy bonds
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