Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 9, Problem 9.3PS
Glycolysis in 25 Words or Fewer. Complete each of the following statements about the glycolytic pathway in 25 words or fewer.
(a) Although the brain is an obligately aerobic organ, it still depends on glycolysis because …
(b) Although one of its reactions is an oxidation, glycolysis can proceed in the absence of oxygen because …
(c) What happens to the pyruvate generated by the glycolytic pathway depends on …
(d) If you bake bread or brew beer, you depend on glycolysis for …
(e) Two organs in your body that can use lactate are …
(f) The synthesis of glucose from lactate in a liver cell requires more molecules of nucleoside triphosphates (ATP and GTP) than are formed during the catabolism of glucose to lactate in a muscle cell because …
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
I'm confused about glycolysis and gluconeogenesis.
Question:
What is the function of glyceraldehyde 3-phosphate dehydrogenase?
Is it because of
-> The incorporation of a phosphate from ATP and reduction of glyceraldehyde 3-phosphate
or
->The incorporation of phosphate from inorganic phosphate and reduction of glyceraldehyde 3-phosphate.
or
-> The incorporation of phosphate from inorganic phosphate and oxidation of glyceraldehyde 3-phosphate
True or false?
Under anaerobic conditions, the pyruvate dehydrogenase complex is responsible for the irreversible conversion of pyruvate to acetyl CoA.
BIOMOLECULES
- MULTIPLE CHOICE
- Please answer properly
QUESTION :
In the final step of glycolysis, identify the name of the enzyme that converts phosphoenolpyruvate into pyruvate
A. Phosphofructokinase-1
B. hexokinase
C. aldolase
D. pyruvate kinase
Chapter 9 Solutions
Becker's World of the Cell (9th Edition)
Ch. 9 - How are catabolic and anabolic pathways similar?...Ch. 9 - Prob. 9.2CCCh. 9 - Why do oxidation and reduction reactions always...Ch. 9 - How can glucose be oxidized in the absence of...Ch. 9 - In the absence of oxygen, why is it necessary to...Ch. 9 - Prob. 9.6CCCh. 9 - Prob. 1QCh. 9 - Why dont glycolysis (glucose to pyruvate) and...Ch. 9 - Why are the key regulatory enzymes in glycolysis...Ch. 9 - Why do cancer cells carry out high rates of...
Ch. 9 - High-Energy Bonds. When first introduced by Fritz...Ch. 9 - The History of Glycolysis. Following are several...Ch. 9 - Glycolysis in 25 Words or Fewer. Complete each of...Ch. 9 - Energetics of Carbohydrate Utilization. The...Ch. 9 - QUANTITATIVE Glucose Phosphorylation. The direct...Ch. 9 - Ethanol Intoxication and Methanol Toxicity. The...Ch. 9 - Propionate Fermentation. Although lactate and...Ch. 9 - QUANTITATIVE Glycolysis and Gluconeogenesis. As...Ch. 9 - Prob. 9.9PSCh. 9 - Youve Got Some Explaining to Do. Explain each of...Ch. 9 - Arsenate Poisoning. Arsenate (HAsO42) is a potent...Ch. 9 - Life Without Phosphofructokinase. Many bacteria do...Ch. 9 - Prob. 9.13PS
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Calculate the number of ATPs generated by the complete metabolic oxidation of tripalmitin (tripalmitoylglycerol). Hydrolysis of the triacylglycerol occurs at the cell surface. Consider the energy yield from catabolism of glycerol, as well as from the fatty acids. Calculate the ATP yield per carbon atom oxidized, and compare it with the energy yield from glucose.arrow_forwardConsidering the fatty acids: (a) Arachidic acid (C20H40O2); molar mass = 312.5 g/mol) (b) Palmitoleic acid (C16H30O2); molar mass = 256.4 g/mol). How many cycles of β -oxidation are needed for complete oxidation? How many molecules of acetyl CoA are formed from its complete catabolism? How can you calculate the number of molecules (moles) of ATP formed (net) by the complete catabolism of each fatty acid? and the number of moles of ATP formed per gram of each fatty acid metabolized??arrow_forwardNeed help, please. Given that the enzyme pyruvate carboxylase converts Pyruvate into Oxaloacetate and this is an anapleurotic reaction. In the liver, what is most of the OAA converted into under these conditions? Please explain. 1. When blood glucose levels are low and the energy charge in the cell is high. 2. When mitochondrial acetyl-CoA levels are high and the energy charge is low.arrow_forward
- ATP Accounting Upon digestion of strach, isomaltose, one of its degradation products is further hydrolized into its monosaccharide components prior to intestinal absorption and entry into the glycolysis. Calculate the number of ATP molecules produced from the digestion and complete oxidation of 43 molecules of isomaltose considering the glycerol - phosphate shuttle. a. total number of glucose molecules entering glycolysis b. total number of pyruvate molecules produced at the end of glycolysis c. total number of mitochondrial NADH produced after pyruvate is acted upon the pyruvate dehydrogenase complex d. total number of CO2 released right after the pyruvate dehydrogenase complex reaction e. total number of acetyl CoA molecules entering citric acid cycle f. total number of net cytosolic ATP molecules produced right after glycolysis g. total number of all NADH molecules produced after complete oxidation h. total number of all FADH2 molecules procuced after complete oxidation i. total…arrow_forwardChemistry 1. Explain why gluconeogenesis is NOT just a reversal of glycolysis.2. Briefly but comprehensively discuss the purpose of the hexose monphosphate shunt, and explain the relationship to this pathway and the aetiology of gout. please include pictures if you can. Thank you!arrow_forwardInstructions. Given each set of information which may include common name(s) and the reaction catalyzed, you are required to identify the main class of the specific enzyme described. Name: citryl-CoA synthetase Reaction: ATP + citrate + CoA = ADP + phosphate + (3S)-citryl-CoA Name: D-xylulose reductase Reaction: xylitol + NAD+ = D-xylulose + NADH + H+ Name: cellobiose phosphorylase Reaction: cellobiose phosphate = α-D-glucose 1-phosphate + D-glucose Name: carbonic anhydrase Reaction: H2CO3 = CO2 + H2O Other info: The enzyme catalyzes the reversible hydration of gaseous CO2 to carbonic acid, which dissociates to give hydrogencarbonate above neutral pH. Name: pantoate activating enzyme Reaction: ATP + (R)-pantoate = AMP + diphosphate + (R)-pantothenate.arrow_forward
- Inhibiting which of the following enzymes will block gluconeogenesis but not glycolysis? Pyruvate carboxylase Pyruvate kinase Phosphoglycerokinase Phosphenolpyruvate carboxykinase Phosphofructokinase-1arrow_forward6. Cycle of tricarboxylic acids (TCA):• importance for cellular metabolism;• intracellular localization of TCA enzymes;• sequence of TCA reactions;• TCA enzymes and coenzymes;• substrate phosphorylation reactions in TCA;• decarboxylation reactions in TCA;• enzymes and coenzymes in dihydrogen reactions in TCA;• mechanisms of regulation of TCA.arrow_forwardStructure, function, Oxidative decarboxylation of pyruvate reactions and mechanisms of activity regulation of pyruvatedehydrogenase multi-enzyme complex.arrow_forward
- State the steps of ketone body formation, starting with two acetyl CoA. Please make sure to state all the enzymes and co-factors for each reaction.arrow_forwardEfficiency of ATP Production in Muscle: The transformation of glucose to lactate in myocytes releases only about 7% of the free energy released when glucose is completely oxidized to CO2 and H2O. Does this mean that anaerobic glycolysis in muscle is a wasteful use of glucose? Explain.arrow_forwardTrue or False? Intermediates in the glycolysis pathway can be a source of raw material if the cell wants to construct biological molecules such as triglycerides or amino acids, but the citric acid cycle cannot be used this way.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
BiochemistryBiochemistryISBN:9781305577206Author:Reginald H. Garrett, Charles M. GrishamPublisher:Cengage Learning
Biochemistry
Biochemistry
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Cengage Learning
Anaerobic Respiration; Author: Bozeman Science;https://www.youtube.com/watch?v=cDC29iBxb3w;License: Standard YouTube License, CC-BY