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12 Questions

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Fatty Acid Biosynthesis 2

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Questions and Answers

Where does the majority of fatty acid synthesis take place?

Golgi apparatus

Mitochondria

Nucleus

Cytosol (correct)

What is the source of the two carbons used in fatty acid synthesis?

The acetyl group of acetyl CoA (correct)

The nucleus

The golgi apparatus

The cytosol

What is the function of the acyl carrier protein (ACP-SH) in fatty acid synthesis?

To carry the growing fatty acid chain (correct)

To add one carbon atom at a time to the growing fatty acid chain

To synthesize ATP from ADP

To break down fatty acids

What is the three-carbon unit added to the growing fatty acid chain in each cycle of fatty acid synthesis?

Malonyl-CoA Signup and view all the answers

Which of the following is NOT synthesized by the body?

Linoleic acid Signup and view all the answers

What is the energy cost of synthesizing one malonyl-CoA unit?

One ATP and one CO2 Signup and view all the answers

What is the product of the condensation step in fatty acid synthesis?

Acetoacetyl-ACP Signup and view all the answers

What is the maximum length of fatty acid chains obtained through this sequence of reactions?

C16 Signup and view all the answers

What is required for the synthesis of unsaturated fatty acids?

NADPH Signup and view all the answers

What is the function of ACP in fatty acid synthesis?

To transfer malonyl-CoA units to the fatty acid chain Signup and view all the answers

What is the product of the three consecutive reactions in step 4?

Butyric acid (C4 fragment) Signup and view all the answers

How are longer fatty acids, such as C18 (stearic acid), obtained?

By adding one or more additional C2 fragments by a different enzyme system Signup and view all the answers