bio 2 protein Quiz
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bio 2 protein Quiz

Created by
@DiligentRing

Questions and Answers

What is the primary site where Type I oxidative deamination occurs?

Liver & Kidney (Mitochondria)

Which molecule is produced as a result of Type I oxidative deamination of Glutamate?

-ketoglutarate

How is L-Glutamate dehydrogenase regulated in terms of energy levels?

Allosterically inhibited by low energy (ADP)

What drives the reaction towards Glutamate synthesis in Type I oxidative deamination?

<p>High ammonia levels</p> Signup and view all the answers

Which amino acid undergoes rapid oxidative deamination due to its central role in nitrogen metabolism?

<p>Glutamate</p> Signup and view all the answers

What type of reaction is Type II oxidative deamination, in terms of reversibility?

<p>Irreversible reaction</p> Signup and view all the answers

What is the function of mitochondrial glutamine synthetase in the body?

<p>To synthesize glutamine by combining ammonia with glutamate</p> Signup and view all the answers

Which enzyme releases ammonia from glutamine in the mitochondria?

<p>Glutaminase</p> Signup and view all the answers

What role does liver-type glutaminase play in response to high protein intake?

<p>Converts ammonia to urea in the liver</p> Signup and view all the answers

How is glutamine synthesized in the process involving ATP and ADP?

<p>By phosphorylating glutamate with ATP</p> Signup and view all the answers

What outcome results from a rare deficiency in neonate glutamine synthetase?

<p>Multi-organ failure</p> Signup and view all the answers

Which enzyme is analogized to glutaminase for a similar reaction catalyzed by L-Asparaginase?

<p>L-Asparaginase</p> Signup and view all the answers

What is the process of removal of an amino group in the form of free ammonia known as?

<p>Deamination</p> Signup and view all the answers

Which type of deamination involves oxidation by removal of hydrogen?

<p>Oxidative deamination</p> Signup and view all the answers

Which enzyme catalyzes Type I Oxidative Deamination using glutamate as a substrate?

<p>Glutamate Dehydrogenase</p> Signup and view all the answers

In Type I Oxidative Deamination, what coenzyme can Glutamate Dehydrogenase use for the deamination reaction?

<p>NAD+ or NADPH</p> Signup and view all the answers

What is the source of nitrogen in hepatic urea synthesis provided by the process of deamination?

<p>-Amino group in the form of free ammonia</p> Signup and view all the answers

Why is NAD+ used in oxidative deamination and NADPH used in reductive amination?

<p>NAD+ promotes oxidation reactions, while NADPH promotes reduction reactions.</p> Signup and view all the answers

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