Acetyl-CoA and Fatty Acid Synthesis

Acetyl-CoA and Fatty Acid Synthesis

Assessment

Interactive Video

Biology, Science, Chemistry

10th - 12th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video discusses fatty acid biosynthesis, focusing on the role of Acetyl-CoA and its transport from mitochondria to the cytosol via the Acetyl-CoA shuttle system. It explains the conversion of Acetyl-CoA to citrate for transport across the mitochondrial membrane and the subsequent conversion back to Acetyl-CoA in the cytosol. The video also covers the exchange of malate and the cyclic nature of the shuttle system, setting the stage for further exploration of fatty acid synthesis in future videos.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where does fatty acid biosynthesis occur in animal cells?

Chloroplast

Nucleus

Mitochondria

Cytosol

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary molecule from which fatty acids are synthesized?

NADH

Acetyl-CoA

Pyruvate

Glucose

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main issue with acetyl-CoA in fatty acid synthesis?

It is not produced in sufficient quantities.

It is located in the mitochondria while synthesis occurs in the cytosol.

It cannot be converted into fatty acids.

It is unstable in the cytosol.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of the acetyl-CoA shuttle system?

To transport acetyl-CoA from the mitochondria to the cytosol.

To transport acetyl-CoA from the cytosol to the mitochondria.

To synthesize ATP from acetyl-CoA.

To convert acetyl-CoA into glucose.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which molecule combines with acetyl-CoA to form citrate?

NADH

Pyruvate

Malate

Oxaloacetate

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What enzyme catalyzes the formation of citrate from acetyl-CoA and oxaloacetate?

Acetyl-CoA carboxylase

Citrate lyase

Citrate synthase

Fatty acid synthase

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to citrate once it is in the cytosol?

It is converted into glucose.

It is stored as a lipid.

It is converted back to acetyl-CoA and oxaloacetate.

It is used directly in fatty acid synthesis.

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