100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
UNE Biochemistry Midterm Study (Questions from weekly evaluations) With Complete Solutions $12.99   Add to cart

Exam (elaborations)

UNE Biochemistry Midterm Study (Questions from weekly evaluations) With Complete Solutions

 8 views  0 purchase
  • Course
  • Institution

A 19-year-old boy is diagnosed with Creutzfeldt-Jakob disease which is caused by the introduction of an amyloid fold in the disease-causing protein. The introduction of this fold causes the protein to transition from a primarily alpha helical structure to an aggregate of mostly beta sheets. This ch...

[Show more]

Preview 2 out of 15  pages

  • July 5, 2023
  • 15
  • 2022/2023
  • Exam (elaborations)
  • Questions & answers
avatar-seller
UNE Biochemistry Midterm Study (Questions from weekly
evaluations) With Complete Solutions

A 19-year-old boy is diagnosed with Creutzfeldt-Jakob disease
which is caused by the introduction of an amyloid fold in the
disease-causing protein. The introduction of this fold causes the
protein to transition from a primarily alpha helical structure to
an aggregate of mostly beta sheets. This change in protein
structure (leading to disease) is best attributed to changes in
which of the following? correct answer: folding of the
secondary structures

Which of the following is the best description of primary protein
structure? correct answer: a newly synthesized strand of amino
acids

How do most enzymes reduce the activation energy needed to
move a reaction forward? correct answer: providing an active
site most complementary the transition state

Movement of ammonia from an amino acid to an a-keto acid
involves a family of enzymes best categorized as which of the
following? correct answer: transferases

Hemoglobin has the ability to display cooperative binding while
myoglobin does not display this binding kinetic pattern. Which
of the following differences between the two proteins accounts
for this difference in binding kinetics? correct answer: the
presence of quaternary structure

, Changes in the physiological variables listed below can alter the
affinity of hemoglobin for oxygen. Which of the following will
lower the affinity of hemoglobin for oxygen? correct answer:
increase in 2,3 bisphosphoglycerate (BPG)

An enzyme has a mutation within the substrate binding site that
reduces the binding of the coenzyme needed for covalent
catalysis. Which of the following is likely to result as a
consequence of this mutation? correct answer: the enzyme will
not be able to form the transition state complex

Chymotrypsin is a protease that cleaves peptide bonds. It is
characterized as which of the following classes of enzymes?
correct answer: hydrolases

If a mutation is made within the active site of an enzyme
resulting in a decrease in Km, which of the following will be
true with respect to the enzyme kinetics? correct answer: the
enzyme will require a lower substrate concentration to reach 1/2
Vmax

Which of the following best describes an enzyme inhibitor that
increases the Km but does not change the Vmax? correct
answer: a competitive inhibitor

An enzyme is participating in a general acid-base catalysis
reaction with an optimal reaction pH of 6.0. If acid is added to
the environment reducing the pH to 3, what is the Iikely impact
to the rate of the reaction? correct answer: the rate of the
reaction is likely to decrease as the pH is out of optimal catalytic
range

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 Classroom. 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.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

78998 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$12.99
  • (0)
  Add to cart