Covalent Regulation of Glutamine Synthetase

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Science, Chemistry
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University
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary function of glutamine synthetase?
To synthesize ATP
To degrade ammonia
To convert glutamate to glutamine
To convert glutamine to glutamate
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is glutamine synthetase inactivated?
By acetylation
By methylation
By adenylylation
By phosphorylation
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does adenylyl transferase play in the regulation of glutamine synthetase?
It adds an AMP group to glutamine synthetase
It degrades glutamine synthetase
It removes the AMP group from glutamine synthetase
It phosphorylates glutamine synthetase
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which protein must be uridylated to activate glutamine synthetase?
P4 protein
P3 protein
P2 protein
P1 protein
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What effect do high levels of ATP and alpha-ketoglutarate have on uridyl transferase?
They activate uridyl transferase
They inhibit uridyl transferase
They degrade uridyl transferase
They have no effect
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to glutamine synthetase when P2 is not uridylated?
It becomes active
It becomes inactive
It is phosphorylated
It is degraded
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a low energy state, what is the fate of glutamine?
It is used for nucleic acid synthesis
It is converted to glutamate
It is synthesized into proteins
It is stored as glycogen
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