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?

<p>Malonyl-CoA (D)</p> Signup and view all the answers

Which of the following is NOT synthesized by the body?

<p>Linoleic acid (B)</p> Signup and view all the answers

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

<p>One ATP and one CO2 (C)</p> Signup and view all the answers

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

<p>Acetoacetyl-ACP (A)</p> Signup and view all the answers

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

<p>C16 (B)</p> Signup and view all the answers

What is required for the synthesis of unsaturated fatty acids?

<p>NADPH (D)</p> Signup and view all the answers

What is the function of ACP in fatty acid synthesis?

<p>To transfer malonyl-CoA units to the fatty acid chain (C)</p> Signup and view all the answers

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

<p>Butyric acid (C4 fragment) (B)</p> Signup and view all the answers

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

<p>By adding one or more additional C2 fragments by a different enzyme system (C)</p> Signup and view all the answers

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