WGU C785 Exam Practice Questions
and Answers
What is the basic structure of an amino acid? What do they look like? - Ans:-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,...
what are zwitterions? - Ans:✔✔-amino with positive and negative charges = overall charge of zero
what is a polypeptide - Ans:✔✔-polymer of amino acids
What is dehydration synthesis? - Ans:✔✔-Process of forming peptide bonds
what is hydrolysis? - Ans:✔✔-adding water to destroy bonds
what is an alpha helix? - Ans:✔✔-twisted secondary structure, formed by hydrogen bonds
what is a beta sheet? - Ans:✔✔-folded second structure shape, formed by hydrogen bonds
what is denaturation? - Ans:✔✔-loss of shape duet o interruption of chemical bonds; occurs via extreme
salt, temp, pH
what is aggregation? - Ans:✔✔-clumping of inner or outer cellular proteins caused by misfolded proteins
leading to diseases such as Alzheimers, ALS, Parkinson's
how do enzymes catalyze reactions? - Ans:✔✔-bind with substrates to decrease activation energy
required and decrease reaction rate
how do enzymes affect reaction rate and activation energy? - Ans:✔✔-decrease activation energy and
decrease reaction rate
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