100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
WGU C785 Biochemistry Unit Exam Questions and Answers 100% Solved $11.99   Add to cart

Exam (elaborations)

WGU C785 Biochemistry Unit Exam Questions and Answers 100% Solved

 7 views  0 purchase
  • Institution
  • WGU

WGU C785 Biochemistry Unit Exam Questions and Answers 100% Solved Which level of protein structure is disrupted through the hydrolysis of peptide bonds? Quaternary Tertiary Primary Secondary - Primary The primary structure of a protein is the sequence of amino acids held together by peptid...

[Show more]

Preview 4 out of 56  pages

  • November 5, 2024
  • 56
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
All documents for this subject (6270)
avatar-seller
NinjaNerd
©NINJANERD 2024/2025. YEAR PUBLISHED 2024.

WGU C785 Biochemistry Unit Exam

Questions and Answers 100% Solved


Which level of protein structure is disrupted through the hydrolysis of

peptide bonds?



Quaternary



Tertiary



Primary



Secondary - ✔✔Primary



The primary structure of a protein is the sequence of amino acids held

together by peptide bonds. Peptide bonds are formed by dehydration

reactions and disrupted by hydrolysis.

,©NINJANERD 2024/2025. YEAR PUBLISHED 2024.

A mutation in the beta-hemoglobin gene, which results in the replacement

of the amino acid glutamate in position 6 with the amino acid valine, leads

to the development of sickle cell anemia. The structures of glutamate and

valine are shown below.



If the beta hemoglobin gene in a patient with sickle-cell anemia were to be

edited so that the valine in position 6 was replaced with a different amino

acid, which replacement for valine would be expected to have the best

clinical outcome, in theory, for the patient? (Assume the valine can

potentially be replaced with any amino acid other than glutamate.) - ✔✔The

original amino acid in a healthy patient is glutamate, which is negatively

charged. The mutated amino acid is valine, which is non-polar. Valine is

causing sickle cell anemia. The best amino acid to replace valine so that

the patient is healthy again would be the one most like glutamate, so any

negatively charged amino acid.

Secondary, tertiary, and quaternary levels of protein structure can all be

impacted by exposing a protein to which treatment?



Change of a hydrophobic amino acid to a different hydrophobic amino acid

,©NINJANERD 2024/2025. YEAR PUBLISHED 2024.


Addition of a reducing agent



Placement of the protein in a solution with a low pH



Increase in the concentration of the protein in solution - ✔✔Placement of

the protein in a solution with a low pH



Changes in pH affect hydrogen bonds and ionic bonds. Hydrogen bonds in

the backbone of amino acids occur in secondary structure, and both

hydrogen bonds and ionic bonds occur in the side chains of amino acids in

tertiary structure.

An increase in beta-pleated sheet structure in some brain proteins can lead

to an increase in amyloid deposit formation, characteristic of some

neurodegenerative diseases. What is the primary biochemical process that

follows the increase in beta-pleated sheet structure that leads to the

development of the amyloid deposits?



An increase in glycogen formation in the brain cells

, ©NINJANERD 2024/2025. YEAR PUBLISHED 2024.


Aggregation of the proteins in the brain



Secretion of glucagon, leading to excessive ketogenesis



An increase in anaerobic metabolism of glucose in the brain -

✔✔Aggregation of the proteins in the brain



This question is describing changes in protein structure. Aggregation

occurs when proteins clump together inappropriately, causing plaques like

amyloid deposits to accumulate.

Which level of protein structure is determined by the sequence of amino

acids?



Secondary structure



Quaternary structure



Tertiary structure

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 NinjaNerd. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $11.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

75632 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
$11.99
  • (0)
  Add to cart