Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 15, Problem 6RQ
Summary Introduction
To review:
The cyclic process of chain extension in fatty acid biosynthesis and the reason for the formation of occasional unsaturated “kinks� in the chain.
Introduction:
Fatty acid synthesis is the formation of fatty acid by the activity of enzymes called fatty acid synthases from acetyl CoA (Coenzyme A) and NADPH (Nicotinamide adenine dinucleotide hydrogen). Fatty acid synthesis always initiates with the consecutive addition of two-carbon acetyl groups.
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Microbiology: An Evolving Science (Fourth Edition)
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- Is the statement during fatty acid biosynthesis, the product detaches from fatty acid synthase complex when the chain length is 16 carbons, wrong or right?arrow_forwardHow does the presence of α-bonds versus β-bonds influence the digestibility of glucose polymers by humans? Hint: There are two effects.arrow_forwardPlease describe four different modes of the regulation of the pentose phosphate pathway.arrow_forward
- Complete the following table by providing the reactants/substrates, enzymes and their functions as well as the products in each step of the Fatty Acid Degradation. Please provide the structure of the reactants and productsarrow_forwardGive the simplified representation of the pentose phosphate pathway.arrow_forwardExplain why the CIS form is the predominant confiiguration of unsaturated fatty acids?arrow_forward
- During fatty acid biosynthesis, is it correct that the product detaches from fatty acid synthase complex when the chain length is 16 carbons?arrow_forwardIn step 2 of the fatty acid biosynthesis, the acetyl-S-synthase condenses the acetyl group (C2) with a malonyl-ACP (C3) and subsequent decarboxylation to acetoacetyl-ACP (C4). Give the molecule [A] after condensation and before decarboxylation in the reaction below. synthase (A] ACP + CO2 + HS synthase ACP HO S.arrow_forwardConsider the complete oxidation of a mixed TAG containing the following fatty acid residues:At carbon 1: cerotic acidAt carbon 2: heptadecanoic acidAt carbon 3: palmitoleic acid Draw the structure of the mixed TAG.arrow_forward
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