BCHM 307 Quiz 3 All Questions100% Solved with Verified Solutions
5 views 0 purchase
Course
BCHM 307
Institution
BCHM 307
An enzyme that forms a covalent bond with its substrate during the course of a reaction
is considered to undergo _____. - Answer covalent catalysis
Which protein in the blood is responsible for converting fibrinogen to fibrin? - Answer
thrombin
Different enzymes that catalyze the same reaction ...
BCHM 307 Quiz 3 All Questions100% Solved
with Verified Solutions
An enzyme that forms a covalent bond with its substrate during the course of a reaction
is considered to undergo _____. - Answer covalent catalysis
Which protein in the blood is responsible for converting fibrinogen to fibrin? - Answer
thrombin
Different enzymes that catalyze the same reaction are known as _____. - Answer
isoenzymes
In an enzyme mechanism that generates a negative charge in the transition state, which
of the following would be most effective to have in the active site of the enzyme? -
Answer transition metal cation
The ability for an enzyme to change its shape upon substrate binding represents the
concept of _____. - Answer induced fit
Which of the following is true regarding heparin? - Answer -it is used clinically as an
anticoagulant
-it simultaneously binds to antithrombin and the target of antithrombin
-it is a sulfated polysaccharide
-it is an allosteric activator of antithrombin
If an enzyme-catalyzed reaction has a velocity of 2 mM/min and a Vmax of 10 mM/min
when the substrate concentration is 0.5 mM, what is the Km? - Answer 2 mM
, How are the kinetics of an enzyme-catalyzed reaction affected by a purely
noncompetitive inhibitor? - Answer Vmax decreased, KM unchanged
If a Lineweaver-Burk plot gave a line with an equation of y = 0.490 x + 0.059, what is the
velocity at a substrate concentration of 5 mM? The original units for substrate were in
mM and velocity in mM/s. - Answer 6.37 mM/s
Which of the following properly expresses the Michaelis-Menten equation? - Answer vo
= Vmax [S] / (Km + [S])
How is an enzyme-catalyzed reaction affected by the addition of more enzyme? -
Answer velocity will increase
Which of the following is true regarding transition state analogs? - Answer -they are
competitive inhibitors
-they bind to an active site with much higher affinity than most inhibitors
-they are much more stable than the transition state
-their affinity for an enzyme is often much greater that the substrate
A Lineweaver-Burk plot is a _____. - Answer double reciprocal plot
If a Lineweaver-Burk plot was made for an enzyme-catalyzed reaction, both with and
without a competitive inhibitor present, what difference would be seen? - Answer the
slope would be less for the inhibited reaction
A plot of velocity versus substrate concentration for a simple enzyme-catalyzed reaction
produces a _____. This indicates that at some point, the enzyme is _____. - Answer
hyperbolic curve; saturated with substrate
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Examsplug. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.