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Quiz: Quiz #1
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Quiz #1
Started: Jan 27 at 3:45pm
Quiz Instructions
The quiz:
Contains a mix of 10 multiple-choice and true/false questions
Has a 15 minute time limit
Is worth 20 points
Is closed book/note unless otherwise instructed by the professor
Is to be completed in class unless otherwise instructed by the professor
2 pts
Question 1
As energy demand decreases, AMPK activity:
increases
decreases
does not change
No answer text provided.
2 pts
Question 2
Which of the following amino acids are common objects of phosphorylation
during enzyme modulation?
Serine
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1/27/24, 3:56 PM
Quiz: Quiz #1
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Threonine
Tyrosine
None of the above
All of the above
2 pts
Question 3
Glycolysis is a(n) _______ pathway.
anabolic
catabolic
No answer text provided.
No answer text provided.
2 pts
Question 4
O-GlcNAc transferase is a covalent activator of glycogen synthase.
True
False
2 pts
Question 5
Allosteric inhibition of enzyme activity occurs when
A substance binds to a site other than the substrate binding site to inhibit activity
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Quiz: Quiz #1
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A substance binds to all possible binding sites to inhibit activity
The substrate binding site is phosphorylated
2 pts
Question 6
Given the following mRNA sequence, which of the following correctly represents the
DNA coding strand?
5' ACAUCGACG 3'
5' ACATCGACG 3'
3' ACATCGACG 5'
3' TGTAGCTGC 5'
5' TGTAGCTGC 3'
2 pts
Question 7
The rst step of glycolysis has a positive G. Given that this is an
energetically unfavorable reaction, how is it still able to proceed?
It exists in equilibrium with its reverse reaction
It is coupled to ATP hydrolysis, which is energetically favorable
An enzyme raises its activation energy
When the concentration of glucose exceeds the Km of hexokinase, a concentration
gradient drives the reaction regardless of its free energy
2 pts
Question 8
1/27/24, 3:56 PM
Quiz: Quiz #1
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Quiz saved at 3:56pm
Glycogenesis is a(n) ________ process.
Anabolic
Catabolic
Eubolic
2 pts
Question 9
Proteins are stored for the primary purpose of serving as an energy
substrate.
True
False
2 pts
Question 10
As UDN-N-acetylglucosamine levels decrease, AMPK activity:
increases
decreases
SUBMIT QUIZ
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