Coproporphyrinogen Oxidase: Physiology, Biochemistry, and Organic Mechanism

Coproporphyrinogen Oxidase: Physiology, Biochemistry, and Organic Mechanism

Assessment

Interactive Video

Science, Biology, Chemistry

University

Hard

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The video explores the physiology, biochemistry, and mechanism of copro porphyrinogen oxidase, an enzyme involved in heme synthesis. It discusses the enzyme's systematic name, subcellular location, and recent discoveries about its mechanism. The video also covers the genetic mutation leading to enzyme deficiency, known as porphyria, and compares the enzyme's oxidative decarboxylation process with other enzymes. The video concludes with a brief mention of future topics related to protoporphyrinogen and heme B synthesis.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the systematic name of copro porphyrinogen oxidase?

Copro porphyrinogen 3 oxidase

Copro porphyrinogen 3 oxygen oxidoreductase

Copro porphyrinogen 3 oxygen reductase

Copro porphyrinogen 3 oxygenase

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where does the catalysis of copro porphyrinogen oxidase occur?

In the inner membrane space of the mitochondria

In the mitochondrial matrix

In the cytosol

In the outer membrane of the mitochondria

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the gene associated with the deficiency of copro porphyrinogen oxidase?

FECH

ALAS

HMOX

CPOX

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main symptom of hereditary coproporphyria?

Nausea and skin lesions

Improved skin condition

Enhanced vision

Increased energy levels

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final product of the reaction catalyzed by copro porphyrinogen oxidase?

Uroporphyrinogen III

Protoporphyrinogen IX

Heme B

Coproporphyrinogen III

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of decarboxylation is performed by copro porphyrinogen oxidase?

Reductive decarboxylation

Hydrolytic decarboxylation

Oxidative decarboxylation

Non-oxidative decarboxylation

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of catalase in the reaction involving copro porphyrinogen oxidase?

To decompose hydrogen peroxide

To oxidize the substrate

To synthesize heme

To reduce molecular oxygen

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