Please answer asap 6. The synthesis of fatty acids depends on the sequential transferof three carbon malonyl-groups from CoA to sulfur groupswithin the ACP-fatty acid synthase complex. Since eachaddition lengthens the chain by two, this represents a syntheticenergy consuming process that generates:A. increased entropy (S).B. CO2C. NADPH.D. ATP.E. An unsaturated double bond7. Based on their biosynthesis most fatty acids are evennumbered molecules. Thus, 15 and 17 chain fatty acids wouldneed to be begin with:A. acetone.B. beta-hydroxy-buterateC. acetoacetate.D. pyruvate.E. propanyl-CoA.

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Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter7: Cellular Respiration: Harvesting Chemical Energy

Section: Chapter Questions

Problem 2TYK

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4. If lots of acetyl-CoA is being formed in the mitochondrial matrix, a particular compound will be exported into the cytosol. a.What compound is this? b. What effect does this compound have on fatty acid synthesis? c. How does the compound produce this effect?
3. These are the by-products of aerobic respiration that are considered low-energymolecules.
3. How is acetyl coA carboxylase being regulated?
The reactions of _____ take place within the cytosol of eukaryotic cells. (a) glycolysis (b) oxidation of pyruvate (c) the citric acid cycle (d) chemiosmosis (e) the electron transport chain
1. Compare the β-oxidation of fatty acid with that of the fatty acid synthesis.
1.Linoleic acid and linoleic acid cannot be synthesized in human tissues, because of _____. * a.Human cells cannot synthesize unsaturated fatty acids. b.Human cells can synthesize only mono-unsaturated fatty acids. c.The corresponding biosynthetic pathway was lost during evolution. d.Humans are diploid organisms; only polyploidy organisms have enough genes for the synthesis of these fatty acids 2.What product could be formed from the breakdown of amylopectin and cellulose? * a.Cellulose could be broken down into chitin b.Cellulose could be broken down into sucrose c.Amylopectin could be broken down into maltose d.Amylopectin could be broken down into glucosamine 3. Which characteristics distinguishes amylopectin and glycogen? * a.Only glycogen has a coiled shape. b.They have different degrees of branching c.Only amylopectin can form hydrogen bonds d.They have different types of glycosidic bond
4. Glycolysis takes place in the: _____ A) nucleus B) lysosome C) cytoplasm D) mitochondria 6. Which of the following pathways directly produces acetyl CoA? _____ A) Hydrolysis of proteins B) glycolysis C) β-oxidation D) Hydrolysis of a polysaccharide E) All of the above
4) a)Fill in the blanks: When oxygen is the final energy carrier in the production of ATP, the process is called _________________. When an inorganic molecule is used to drive theoxidation in a cell to produce ATP, the process is called _______________.b)How is energy transferred to proteins in the process called phosphorylation?c) Fill in the blanks: When a molecule is oxidized it has (more/less) _________ electrons than it did before being oxidized. When a molecule is reducedit has (more/less)_________ electrons than it did before being reduced.d) Is NADH is the oxidized or reduced form of NAD+?
E n e r g y is released by the ________ of ATP. a. removal of the terminal phosphate group b. addition of an electron c. oxidative cleavage of the hydroxyl group
2. Which statement is NOT true of the reaction producing malonyl-CoA during fatty acid synthesis? It is stimulated by citrate. It requires acyl carrier protein (ACP). It requires CO2 (or bicarbonate). One mole of ATP is converted to ADP + Pi for each malonyl-CoA synthesized. The cofactor is biotin.
4. Consider the structure shown below. Give one cycle of the reactions of the - oxidation of fatty acids. Show all the structures of the compounds involved; indicate whether the reactions are reversible or not; show the use or generation of co-factors wherever it occurs.
2. The induced fit conformational change in hexokinase occurs when— the allosteric site is saturated. ADP is released. glucose binds. ATP binds. glucose-6-phosphate is released.

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