Overview of Metabolism [Part 3] | Acetyl-CoA & Anaplerotic Reactions

Overview of Metabolism [Part 3] | Acetyl-CoA & Anaplerotic Reactions

Assessment

Interactive Video

Science, Chemistry

University

Hard

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The video explores the role of beta oxidation in metabolism, detailing how fatty acids are broken down into acetyl CoA, NADH, and FADH2. It discusses the reversal of beta oxidation, leading to HMG CoA synthesis, and the production of ketone bodies during fasting. The synthesis of cholesterol and its derivatives is explained, highlighting the role of HMG CoA reductase. The video also covers the biosynthesis of fatty acids and heme, emphasizing allosteric regulation. Finally, it discusses the malic enzyme's role in producing NADPH and the conversion of glutamate to glutamine.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary product of beta oxidation that enters the citric acid cycle?

Glucose

NADH

Acetyl CoA

FADH2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which enzyme is responsible for converting acetoacetyl CoA to HMG CoA?

Thiolase

HMG CoA synthase

Acetyl CoA carboxylase

Fatty acid synthase

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a fed state, which enzyme is activated to synthesize cholesterol?

Fatty acid synthase

Thiolase

HMG CoA reductase

HMG CoA lyase

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the committed step in fatty acid synthesis?

Conversion of malate to pyruvate

Beta oxidation

Elongation of fatty acids

Conversion of acetyl CoA to malonyl CoA

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which enzyme is responsible for the elongation of fatty acids beyond 16 carbons?

HMG CoA reductase

Elongation enzyme

Acetyl CoA carboxylase

Fatty acid synthase

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of succinyl CoA in heme synthesis?

It is a precursor for delta aminolevulinic acid

It is used in the electron transport chain

It is a waste product

It is converted to malonyl CoA

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which enzyme converts delta aminolevulinic acid to porphobilinogen?

Porphobilinogen deaminase

Lad hydratase

Glutaminase

Malic enzyme

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