19. The activation of long chain fatty acids requires which of the following components?B. ATP and CoAE. Carnitine acyl transferase I and IIC. ATP, COA and fatty acyl CoAA. ATPD. Fatty acyl carnitine20. Which of the following statements best describes the B-oxidation of fatty acids?A. B-oxidation of fatty acids is an extra mitochondrial process.B. The enzymes present in the form of multienzyme complexes.C. One acetyl CoA is produced in each turn of the B-oxidation spiral.D. The intermediates are carried by Acyl carrier protein.E. 129 ATP are required for the formation of one mol of palmitic acid.

Fatty acids are a long hydrocarbon chain of carboxylic acid. They can be either saturated or…

Answered: 19. The activation of long chain fatty…

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 5TYK

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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?
1. Under anaerobic conditions where does the NAD⁺ necessary for the complete oxidation of glucose come from? a. oxidation of acetaldehyde b. reduction of pyruvate c. reduction of lactate d. oxidation of ethanol
14. How many cycles of O-H-O-T would it take to complete the B-oxidation of an 18-C fatty acid? a. 6 b. 7 c. 8 d. 9 15. Which lipid metabolism pathway does NOT involve acetvI-CoA? a. lipogenesis b. ketogenesis c. both a and b d. neither a nor b 16. How is fatty acyl-CoA transported from the cytosol into the mitochondrial matrix? a. via CPT I and II b. via citrate-malate transport system c. via lipoproteins d. via albumin
6.Carbohydrate oxidation is faster than fat oxidation, and glucose is used first as the preferred energy source in skeletal muscles during intense physical activity. A.Explain the roles of anaerobic and aerobic oxidation of glucose for energy (ATP) production during intense physical activity. You may draw a figure to explain the anaerobic and aerobic oxidative phases of glucose oxidation. B.Explain what oxygen debt means, and how it is related to oxygen deficit during intense physical activity.
2. A fat cell is involved in the fatty acid biosynthesis a. Will it chose oxidative phase, non-oxidative phase or both phases of the pentose phosphate pathway for its need? Give reason. b. Explain in detail the mechanism by which theses phases are utilized by this cell to fulfill its need
3. How is acetyl coA carboxylase being regulated?
1. Why is the chemical logic behind the phosphorylation of glucose by hexokinase? a. So that we end the preparatory phase with 2 3-carbon compounds. b. to provide a substrate for phosphohexose isomerase. c. "Locks" Glucose in the cell. d. to decrease the ΔG of the next reaction. 2. What type of reaction does glyceraldehyde-3-phosphate dehydrogenase catalyze? a. isomerization b. group transfer c. oxidation d. dehydration
1. What molecule are released in the formation of alpha- ketoglutarate into succinyl CoA? A. fad - fadh + h20 B. Fad- fadh C. Nadh+ co2 D. Acetl coa + co2 2.fad is reduced in which of the reaction of the krebs cycle? 3. How many nadh and fadh2 molecules are prodcues respectively during one turn of the citric acid cycle? 4. Acetyl coa is formed from pyruvate by ___ reaction. 5. What enzyme un the ETC is responsibke for generating the atp molecules?
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
The Krebs cycle converts ________ through a cycle of reactions. In the process, ATP, ________, and ________ are produced. acetyl CoA; FAD, NAD acetyl CoA; FADH2; NADH pyruvate; NAD; FADH2 pyruvate; oxygen; oxaloacetate
Which of the following reaction pathways is not part of the second stage of aerobic respiration? a. electron transfer phosphorylation b. acetyl-CoA formation c. Krebs cycle d. glycolysis e. a and d
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

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