WGU C785 Final Exam QUESTIONS AND ANSWERS | ACTUAL EXAM WITH 3
VERSIONS PRACTICE EXAM | ACCURATE REAL EXAM QUESTIONS AND ANSWERS
| GUARANTEED PASS | LATEST UPDATE
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
what is hydrolysis? - CORRECT ANSWER adding water to destroy bonds
what is an alpha helix? - CORRECT ANSWER twisted secondary
structure, formed by hydrogen bonds
what is a beta sheet? - CORRECT ANSWER folded second structure
shape, formed by hydrogen bonds
what is denaturation? - CORRECT ANSWER loss of shape duet o
interruption of chemical bonds; occurs via extreme salt, temp, pH
what is aggregation? - CORRECT ANSWER 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? - CORRECT ANSWER bind with
substrates to decrease activation energy required and decrease reaction
rate
,how do enzymes affect reaction rate and activation energy? - CORRECT
ANSWER decrease activation energy and decrease reaction rate
what are the 4 steps of the enzymatic cycle? - CORRECT ANSWER
enzyme recognizes substrate, substrate attracts the enzyme; enzyme-
substrate complex is formed; enzyme-product complex formed; product
is released, enzyme recycled
how do environmental changes affect enzymes? - CORRECT ANSWER
High heat, pH change, high salt concentration, and reducing agents can
cause an enzyme to lose its form/lose function
what is a competitive inhibitor? - CORRECT ANSWER Mimics substrate
and takes its place on the active binding site
what is a noncompetitive inhibitor? - CORRECT ANSWER Binds to
allosteric site causing active site to change shape = preventing substrate
from binding with enzyme
what molecules increase/build up or decrease given a specific inhibitor?
A -> (enzyme 1) -> B -> (enzyme 2) -> C -> (enzyme 3) -> D. Pretend
Enzyme 2 is inhibited. - CORRECT ANSWER Inhibitor would cause a
build up for product B, decrease product C. Enzyme 3 and product D
would not be created.
what is substrate? - CORRECT ANSWER the substance on which an
enzyme acts
what is a product? - CORRECT ANSWER result of a reaction
what is an intermediate? - CORRECT ANSWER products produced in an
enzyme pathway before final product
, what is an active site? - CORRECT ANSWER location where substrate
binds with enzyme
what is enzyme specificity? - CORRECT ANSWER Enzymes bind with
certain substrate or type of substrate to create a certain reaction
what is induced fit? - CORRECT ANSWER Enzyme changes shape in
enzyme-substrate complex to facilitate formation of enzyme-product
complex
what is kinase? - CORRECT ANSWER Enzyme, adds phosphate group via
phosphorlation
what is phosphatase? - CORRECT ANSWER enzyme, removes
phosphate group via dephosphorylation
with is an allosteric site? - CORRECT ANSWER secondary site on an
enzyme an inhibitor binds to via non-competitive inhibition
what is competitive inhibition? - CORRECT ANSWER enzyme substrate
and inhibitor complex compete to bind with enzyme's active site. no
product formed when inhibitor binds with enzyme.
what is non-competitive inhibition? - CORRECT ANSWER inhibitor binds
to allosteric site, not active site. Changes shape of active site, preventing
substrate from binding and making product
what is feedback inhibition? - CORRECT ANSWER End product sends
feedback to beginning of enzyme pathway inhibiting 1st enzyme via
noncompetitive inhibition
VERSIONS PRACTICE EXAM | ACCURATE REAL EXAM QUESTIONS AND ANSWERS
| GUARANTEED PASS | LATEST UPDATE
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
what is hydrolysis? - CORRECT ANSWER adding water to destroy bonds
what is an alpha helix? - CORRECT ANSWER twisted secondary
structure, formed by hydrogen bonds
what is a beta sheet? - CORRECT ANSWER folded second structure
shape, formed by hydrogen bonds
what is denaturation? - CORRECT ANSWER loss of shape duet o
interruption of chemical bonds; occurs via extreme salt, temp, pH
what is aggregation? - CORRECT ANSWER 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? - CORRECT ANSWER bind with
substrates to decrease activation energy required and decrease reaction
rate
,how do enzymes affect reaction rate and activation energy? - CORRECT
ANSWER decrease activation energy and decrease reaction rate
what are the 4 steps of the enzymatic cycle? - CORRECT ANSWER
enzyme recognizes substrate, substrate attracts the enzyme; enzyme-
substrate complex is formed; enzyme-product complex formed; product
is released, enzyme recycled
how do environmental changes affect enzymes? - CORRECT ANSWER
High heat, pH change, high salt concentration, and reducing agents can
cause an enzyme to lose its form/lose function
what is a competitive inhibitor? - CORRECT ANSWER Mimics substrate
and takes its place on the active binding site
what is a noncompetitive inhibitor? - CORRECT ANSWER Binds to
allosteric site causing active site to change shape = preventing substrate
from binding with enzyme
what molecules increase/build up or decrease given a specific inhibitor?
A -> (enzyme 1) -> B -> (enzyme 2) -> C -> (enzyme 3) -> D. Pretend
Enzyme 2 is inhibited. - CORRECT ANSWER Inhibitor would cause a
build up for product B, decrease product C. Enzyme 3 and product D
would not be created.
what is substrate? - CORRECT ANSWER the substance on which an
enzyme acts
what is a product? - CORRECT ANSWER result of a reaction
what is an intermediate? - CORRECT ANSWER products produced in an
enzyme pathway before final product
, what is an active site? - CORRECT ANSWER location where substrate
binds with enzyme
what is enzyme specificity? - CORRECT ANSWER Enzymes bind with
certain substrate or type of substrate to create a certain reaction
what is induced fit? - CORRECT ANSWER Enzyme changes shape in
enzyme-substrate complex to facilitate formation of enzyme-product
complex
what is kinase? - CORRECT ANSWER Enzyme, adds phosphate group via
phosphorlation
what is phosphatase? - CORRECT ANSWER enzyme, removes
phosphate group via dephosphorylation
with is an allosteric site? - CORRECT ANSWER secondary site on an
enzyme an inhibitor binds to via non-competitive inhibition
what is competitive inhibition? - CORRECT ANSWER enzyme substrate
and inhibitor complex compete to bind with enzyme's active site. no
product formed when inhibitor binds with enzyme.
what is non-competitive inhibition? - CORRECT ANSWER inhibitor binds
to allosteric site, not active site. Changes shape of active site, preventing
substrate from binding and making product
what is feedback inhibition? - CORRECT ANSWER End product sends
feedback to beginning of enzyme pathway inhibiting 1st enzyme via
noncompetitive inhibition
