Exam (elaborations)
BIOC13 Sample MCQ and SA Question and Answers for Midterm
- Course
- Institution
2023 Winter Midterm Sample with Prof Bawa. Includes full answers for mcq and written questions.
[Show more]
Seller
Follow
StudentUofT
Content preview
BIOC13 SAMPLE QUESTIONS – WINTER 20231. The process by which nutrients are degraded in order to salvage their components and/or
to generate energy is most specifically called:
a) metabolism
b) anaerobism
c) catabolism
d) anabolism
e) glycolysis
2. A spontaneous process
a) occurs without the addition of free energy.
b) has a G<0.
c) is exergonic.
d) All of the above
e) None of the above
3. Which statement(s) explain why many biochemical processes are carried out via multi-
step pathways rather than by single-step reactions (or only a few steps)?
a) Multi-step pathways allow for more control points to regulate biochemical processes.
b) Sharing of intermediates between pathways is facilitated this way.
c) The end products of most pathways can usually be produced only by the pathway
reactions that nature has evolved.
d) There is greater control over the amounts of energy that are consumed or released at
any one time.
e) All of the above
4. Considering the reaction: XH2 + NAD+ → X + NADH + H+. In this reaction X is said to
be:
a) an enzyme.
b) storing two hydrogen atoms.
c) reduced.
d) oxidized.
e) a catalyst.
, Name:_____________________ Student Number: ______________
5. Hydrolases catalyze the following type(s) of reaction(s):
a) splitting a molecule using water.
b) conversions between isomers.
c) reactions in which double bonds are formed.
d) oxidation-reduction reactions.
e) None of the above.
6. Which one of these is a phosphorylation reaction:
a) glucose + fructose → sucrose + H2O
b) glucose + ATP → glucose 6-phosphate + ADP
c) glucose 6-phosphate + fructose → sucrose + Pi
d) glucose + glucose → maltose
e) None of these are phosphorylation reactions
7. Select the enzyme that does not match the reaction as suggested by its name:
a) sucrase: splits sucrose into glucose and fructose
b) lipase: breaks down lipids
c) phosphatase: removes phosphate groups
d) urease: converts urea to ammonia and CO2
e) kinase: breaks peptide bonds
8. ATP allosterically inhibits the enzyme, PFK-1, that catalyzes the third step of glycolysis.
This is an example of ________.
a) Feedback inhibition
b) Feed forward activation
c) Competitive inhibition
d) Negative cooperativity
e) Malfunctioning enzyme
9. Which of the following enzymes catalyzes the transfer of a phosphoryl group from ATP
to glucose?
a) Hexokinase
b) Phosphoglucose isomerase
c) Glucose-6-phosphatase
d) Phosphoglucose mutase
e) Aldolase
2
Page
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 StudentUofT. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81989 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now