100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
UNE Medical Biochemistry Midterm Exam – Qs & As £9.74   Add to cart

Exam (elaborations)

UNE Medical Biochemistry Midterm Exam – Qs & As

 2 views  0 purchase
  • Module
  • Institution

UNE Medical Biochemistry Midterm Exam – Qs & As

Preview 2 out of 10  pages

  • January 17, 2024
  • 10
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers
avatar-seller
UNE Medical Biochemistry Midterm Exam – Qs & As

Which of the following proteins is likely to have quaternary structure?
Correct Ans - A multimeric protein that contains multiple peptide
chains

Prosthetic groups are complex nonprotein molecules that participate in
catalysis by providing functional groups that form a covalent intermediate
between the enzyme and the substrate. Which of the following is an
example of a coenzyme or cofactor that participates in a covalent catalysis
reaction? Correct Ans - Pyridoxal phosphate

Which of the following best describes a protein domain? Correct Ans -
A section of a protein structure sufficient to perform a particular chemical
or physical task

Cleavage of fructose 1,6 bisphosphate to dihydroxyacetone and
Glyceraldehyde 3-phosphate involves the breaking of a carbon-carbon bond
through a process other than oxidation or hydrolysis. This is achieved by
what class of enzymes? Correct Ans - Lyase

A 55-year old man is brought to the emergency room with a chief
complaint of chest pain and tingling in his left arm. Elevation of which of
the following enzymes in circulation would be most indicative of
myocardial infarction? Correct Ans - Troponin

Allosteric activators of hemoglobin will increase substrate binding through
which of the following mechanisms? Correct Ans - Binding the
protein, and keeping it in the "R" conformation

Which of the following best describes tertiary structure? Correct Ans -
Interactions between alpha helices and beta sheets to form a domain

How do most enzymes reduce the activation energy needed to move a
reaction forward? Correct Ans - providing an active site most
complementary to the transition state

Domains are common structural elements that retain a particular function
within the protein. Which of the following is an example of a protein

, domain? Correct Ans - An arrangement of beta-strands connected
by alpha-helices (beta-alpha-beta-alpha)

Which amino acid would not be commonly found in the middle of an alpha-
helical domain? Correct Ans - Proline

Which of the following is a true statement with regards to the malate-
aspartate shuttle system? Correct Ans - Generates 2.5 molecules of
ATP in mitochondria per each NADH from glycolysis.

Complex II (Succinate Q-reductase) is not considered part of the process of
oxidative phosphorylation because it is unable to do which of the following
activities? Correct Ans - Pump protons from the mitochondrial
matrix into the inter membrane space.

Succinate is a substrate for which complex in the electron transport chain?
Correct Ans - Complex II (Succinate-Q reductase)

The glycerophosphate shuttle is the major shuttle of most tissues. Which of
the following best describes the transfer of electrons by this shuttle?
Correct Ans - Electrons are directly transferred from glycerol 3-
phosphate to an FAD containing glycerol phosphate dehydrogenase.

A 19-year old male is being evaluated for muscle weakness. Evaluation of a
muscle biopsy revealed normal rates of succinate oxidation but very low
rates of pyruvate oxidation. Further testing determined normal levels of
enzymatic activity in both malate dehydrogenase and pyruvate
dehydrogenase. Based on this data, the patient may have a mutation in a
gene encoding for which mitochondrial protein? Correct Ans -
Complex I (NADH Q-oxidoreductase)

Which of the following components of the electron transport chain passes
electrons to O2 causing it to be reduced to H2O? Correct Ans -
Cytochrome c oxidase

As electrons flow through complexes in the inner mitochondrial membrane,
protons are pumped from the matrix into the inter membrane space. Which
of the following statements is most reflective of the pH in the inter

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 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 Studycafe. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for £9.74. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

75323 documents were sold in the last 30 days

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

Start selling
£9.74
  • (0)
  Add to cart