BIOCHEM-ACHIEVE(FIRST DAY DISCOUNTED)
9th Edition
ISBN: 2818000069358
Author: BERG
Publisher: MAC HIGHER
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Question
Chapter 26, Problem 4P
Interpretation Introduction
Interpretation:
The correct option that is needed for the formation of cholesterol should be determined.
Concept introduction:
The steroid can be defined as a
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Compare and contrast the following items related to lipid metabolism. Cite their main similarities/or differences.
1.lysophosphatidylcholine vs. phosphatidylethanolamine
2.trimyristin vs. triolein.
3. ACP vs. carnitine-acyl transferase.
CHOOSE THE CORRECT LETTER.
1. Which of the following molecules is NOT a ketone body?A.B-hydroxybutyrateB.acetoneC. acetyl-CoAD.acetoacetate
2.What intermediate is necessary for glycogenesis to occur?A. UTPB.glucose-1-phosphateC.UDP-glucoseD. UDP
-CHOOSE THE CORRECT LETTER-
1.Which of the following molecules were derived from acetyl CoA?A. amino acids, cholesterol, beta-hydroxybutyrateB.fatty acids, cholesterol, beta-hydroxybutyrateC. fatty acids, alpha-ketoglutarate, acetoacetateD. fatty acids, cholesterol, pyruvate
2.All the following statements about the free energy of glycolysis and gluconeogenesis are true, EXCEPTA. The conversion of glucose to 2 lactate yields a net of 2 ATPB. The conversion of glucose to 2 pyruvate yields 2 NADH and a net of 2 ATPC. The conversion of 2 pyruvates to glucose requires 4ATP, 2 GTP and 2 NADHD. Gluconeogenesis requires 6 more ATP per glucose that what were derive from glucose to glycolysis
Chapter 26 Solutions
BIOCHEM-ACHIEVE(FIRST DAY DISCOUNTED)
Ch. 26 - Prob. 1PCh. 26 - Prob. 2PCh. 26 - Prob. 3PCh. 26 - Prob. 4PCh. 26 - Prob. 5PCh. 26 - Prob. 6PCh. 26 - Prob. 7PCh. 26 - Prob. 8PCh. 26 - Prob. 9PCh. 26 - Prob. 10P
Ch. 26 - Prob. 11PCh. 26 - Prob. 12PCh. 26 - Prob. 13PCh. 26 - Prob. 14PCh. 26 - Prob. 15PCh. 26 - Prob. 16PCh. 26 - Prob. 17PCh. 26 - Prob. 18PCh. 26 - Prob. 19PCh. 26 - Prob. 20PCh. 26 - Prob. 21PCh. 26 - Prob. 22PCh. 26 - Prob. 23PCh. 26 - Prob. 24PCh. 26 - Prob. 25PCh. 26 - Prob. 26PCh. 26 - Prob. 27PCh. 26 - Prob. 28PCh. 26 - Prob. 29PCh. 26 - Prob. 30PCh. 26 - Prob. 31PCh. 26 - Prob. 32PCh. 26 - Prob. 33PCh. 26 - Prob. 34PCh. 26 - Prob. 35PCh. 26 - Prob. 36PCh. 26 - Prob. 37PCh. 26 - Prob. 38PCh. 26 - Prob. 39PCh. 26 - Prob. 40PCh. 26 - Prob. 41PCh. 26 - Prob. 42PCh. 26 - Prob. 43PCh. 26 - Prob. 44PCh. 26 - Prob. 45PCh. 26 - Prob. 46PCh. 26 - Prob. 47P
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- Select the BEST answer. Increasing the concentration of Fructose-2,6 bisphosphate would Inhibit Phosphofructokinase 2 Increase the concentration of Fructose-1,6 bisphosphate (phosphofructose isomerase) O increase the synthesis of glycogen Increase the carboxylation of Ac-CoA to make more malonyl-CoA increase the concentration of Pyruvatearrow_forwardUsing the list of enzymes given below, provide all chemical structures and reactions for complete metabolism of the fatty acids 8:0, 18:145 and 12:247,10. It is unnecessary to repeat a reaction once it has been drawn out previously. Refer to the repeated reaction by group and number. Use the next pages if necessary and clearly identify which fatty acid is being metabolized.arrow_forwardCHOOSE THE CORRECT LETTER 1.What are the B-oxidation products of lauric acid (C12H2402), a major component of coconut oil?A.6 acetyl-CoA, 6 NADH, 6 FADH2B. 6 acetyl-CoA, 5 NADH, 5 FADH2C. 5 acetyl-CoA, 6 NADH, 6 FADH2D. 5 acetyl-CoA, 5 NADH, 5 FADH2 2.What is the mechanism of ATP synthesis in glycolysis?A. substrate level phosphorylationB. reductionC. oxidationD. oxidative phosphorylation 3.Which of the following enzymes need ATP as a substrate in the reaction?A.phosphoglycerate kinaseB. phosphofructokinaseC. pyruvate kinaseD.glyceraldehyde-3-phosphate dehydrogenasearrow_forward
- G. ENZYME CLASSIFICATION. Identify the main class of enzymes used to catalyzed the following reactions: 1. Lactate dehydrogenase: NADH+H NAD HC-OH CH3 CH Pynnte Lactate 2. Methylmalonyl-CoA mutase: CH CH SCOA CH,CH, SCOA coenzyme B12 COO COO methylmalonyl-CoA succinyl-CoA 3. Enolase: 0. H–Ċ–0–P–0- C-0–P-0- + H,0 HO–CH, CH 6 Phosphoenolpyruvate 2-Phosphoglycerate 4. Chymotrypsin: -0–CH,CH3 + H2O - RCOOH + HOCH,CH3 5. Pyruvate carboxylase: coo • co, • ATP + H,0 H-C-H . ADP + P, + 2H čoo CH, Pyruvate Oxaleacetatearrow_forwardCHOOSE THE CORRECT LETTER. Which of the following reactions require ATP in glycolysis?A. glucose-6-phosphate to fructose-6-phosphateB. fructose-1,6-bisphosphate to glyceraldehyde-3-phosphateC. 3-phosphoglycerate to 2-phosphoglycerateD. fructose-6-phosphate to fructose-1,6-bisphosphatearrow_forwardGive the process/pathway where each of the following enzymes is involved. _______________________ a. HMG CoA lyase _______________________ b. HMG CoA reductase _______________________ c. Acetyl CoA carboxylase _______________________ d. Acyl CoA dehydrogenasearrow_forward
- Although both acetyl-CoA and succinyl-CoA are high-energy thioesters, their chemical energy is used in distinct ways. Elaborate.arrow_forwardAdipose tissue cannot resynthesize triacylglycerols from glycerol released during lipolysis (fat breakdown). Why not? Describe the metabolic route that is used to generate a glycerol compound for tri- acylglycerol synthesis.arrow_forwardWhich of the followinga. phosphopentose isomeraseb. acetyl CoA carboxylasec. isocitrate dehydrogenased. fructose 1,6,biphosphatase-1e. glucose 6-phosphate dehydrogenaseis appropriate for this analogyglycolysis:phosphofructokinase-1:______:pentose phosphate pathwayarrow_forward
- ENZYMES. Match the name of the enzyme with the biochemical reaction. Enzymes may be used more than once. a. amylase b. cysteine desulfurase c. lipase d. protease e. tryptophanase f. urease casein hydrolysis gelatin liquefaction hydrogen sulfide production indole starch hydrolysis triglyceride hydrolysis urea hydrolysisarrow_forwardLong explanations are not needed. Direct answers would suffice. a. High concentration of glucose 6-phosphate is inhibitory to the enzyme hexokinase. I. True II. False b. Which compound is formed when NAH reduces pyruvate (anaerobic condition)? I. lactate II. alpha-ketoglutarate III. glucose IV. oxaloacetatearrow_forwardAcetyl-CoA and succinyl-CoA are both highenergy thioesters, but their chemical energy is put to differentuses. Elaborate.arrow_forward
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