Microbiology: An Introduction, Global Edition
12th Edition
ISBN: 9781292099149
Author: Tortora J. Gerard
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 5, Problem 5MCQ
Summary Introduction
Introduction:
The Krebs cycle is also known as the citric acid cycle (TCA). It consists of multi-step chemical mechanisms used by all aerobic organisms for releasing stored energy by oxidization of the two pyruvates into high energy yielding molecules such as NADH, FADH2, and some ATP molecules.
Expert Solution & Answer
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Students have asked these similar questions
Which of the following statements does NOT explain the Krebs cycle?
a. It produces 6 carbon dioxide in the breakdown of a molecule of glucose.
b. t produces 6 NADH from the breakdown of a molecule of glucose.
c.It produces 2 ATP molecules in substrate level phosphorylation.
d.It produces 2 FADH2 in the breakdown of a molecule of glucose.
Which of the following statements is NOT true about Krebs Cycle?
a.
Krebs cycle is composed of 8-step enzymatic reactions.
b.
For every CO2 released in the cycle, NADH is produced.
c.
Succinyl-CoA allows the phosphorylation of GDP (Guanosine Diphosphate)
d.
The carbon atoms from the glucose that enters the cycle are released from the mitochondrion immediately.
Which of the following statements concerning the location of the metabolic pathways is correct?
a.
All reactions of the glycolysis take place in the mitochondria.
b.
All reactions of the TCA cycle take place in the mitochondria.
c.
Some reactions of the TCA cycle take place in the cytosol, and some in mitochondria.
d.
Some reactions of the glycolysis take place in the cytosol, and some in mitochondria.
Chapter 5 Solutions
Microbiology: An Introduction, Global Edition
Ch. 5 - Prob. 1RCh. 5 - DRAW ITUsing the diagrams below, show each of the...Ch. 5 - DRAW IT An enzyme and substrate are combined. The...Ch. 5 - Define oxidation-reduction, and differentiate the...Ch. 5 - There are three mechanisms for the phosphorylation...Ch. 5 - All of the energy-producing biochemical reactions...Ch. 5 - Fill in the following table with the carbon source...Ch. 5 - Write your own definition of the chemiosmotic...Ch. 5 - Why must NADH be reoxidized? How does this happen...Ch. 5 - NAME IT What nutritional type is a colorless...
Ch. 5 - Which substance in the following reaction is being...Ch. 5 - Which of the following reactions produces the most...Ch. 5 - Prob. 3MCQCh. 5 - Which of the following compounds has the greatest...Ch. 5 - Prob. 5MCQCh. 5 - Prob. 6MCQCh. 5 - Which culture produces the most lactic acid? Use...Ch. 5 - Which culture produces the most ATP? Use the...Ch. 5 - Which culture uses NAD+? Use the following choices...Ch. 5 - Which culture uses the most glucose? Use the...Ch. 5 - Explain why, even under ideal conditions,...Ch. 5 - The following graph shows the normal rate of...Ch. 5 - Compare and contrast carbohydrate catabolism and...Ch. 5 - How much ATP could be obtained from the complete...Ch. 5 - The chemoautotroph Acidithiobacillus can obtain...Ch. 5 - Haemophilus influenzae requires hemin (X factor)...Ch. 5 - The drug Hivid, also called ddC, inhibits DNA...Ch. 5 - The bacterial enzyme streptokinase is used to...
Knowledge Booster
Similar questions
- Which of the following statements about the TCA cycle is INCORRECT? O a. The TCA cycle can recover much more energy than homolactic fermentation. b. All reactions of the TCA cycle take place in the mitochondria. C. The energy released in the TCA cycle is mainly stored in the reduced electron carriers NADH and FADH₂. O d. Under anaerobic conditions the TCA cycle is used to oxidize pyruvate. Oe. The TCA cycle is also called the citric acid cycle after the product of the first reaction catalyzed by pyruvate dehydrogenase.arrow_forwardIn which of the given steps of TCA cycle one C is lost from substrate in the form of CO2 as well as a molecule of NAD+ is reduced? a.Oxalosuccinic acid to a-ketoglutaric acid b.Isocitrate to oxalosuccinic acid c.Malic acid to oxaloacetic acid d.a-ketoglutaric acid to succinyl CoAarrow_forwardWhich of the following number of products from the Krebs Cycle is a manifestation of 4 pyruvate molecules generated from glycolysis? A. 2 ATP, 6 NADH, 2 FADH₂ B. 3 ATP, 9 NADH, 3 FADH₂ C. 4 ATP, 4 NADH, 4 FADH₂ D. 4 ATP, 12 NADH, 4 FADH₂arrow_forward
- In the first stage of glycolysis, the hydroxyl group on C6 of glucose is phosphorylated to form glucose-6-phosphate (G6P). In this reaction, which of the following statements is true? a. O b. d. e. Glucose kinase is used to catalyze the reaction. Hexokinase is used to catalyze the reaction. A molecule of NADH is synthesized. One ATP is synthesized. Fructose kinase is used to catalyze the reaction.arrow_forwardAll of the following are generated directly during the Krebs (TCA) cycle except? a. ATP b. GTP c. Oxaloacetate d. FADH2 e. NADHarrow_forwardWhich of the following citric acid cycle intermediates is decarboxylated during the operation of the cycle? A. More than one correct response B. No correct response C. Isocitrate D. Succinate E. Oxaloacetatearrow_forward
- Which of the following statements is correct? a. Glycolysis and Krebs cycle produce ATP in substrate level phosphorylation b. Glycolysis and Krebs cycle produce ATP in oxidative level phosphorylation. c. Glycolysis and pyruvate oxidation produce ATP in substrate level phosphorylation. d. Glycolysis and pyruvate oxidation produce ATP in oxidative level phosphorylation.arrow_forwardBased on their roles in the metabolic process, classify the following substances as an oxidizing agent, reducing agent or neither. a. FADH2 b. ATP c. NAD+ d. NADH e. GTParrow_forwardWhich of the following cofactors is NOT used by the pyruvate dehydrogenase complex? a. NAD+ b. FAD c. tetrahydrofolate d. coenzyme Aarrow_forward
- Phosphofructokinase is an important control enzyme in the regulation of cellular respiration. Which of the following statements correctly describes phosphofructokinase activity? a. It is inhibited by citrate, an intermediate of the citric acid cycle. b. It catalyzes a reaction which increases the rate of the overall pathway. c. It catalyzes an early step of glycolysis which has the lowest level of activation energy among the overall pathway. d. It is activated by ATP. e. It is inhibited by AMP.arrow_forwardidentify the reactions of the citric acid cycle that provide reducing power for the electron-transport chain a. conversion of succinyl-CoA to succinate b. conversion of fumarate to malate c. conversion of succinate to fumarate d. conversion of malate to oxaloacetatearrow_forwardExplain why the hydrolysis of the following compounds releases energy. A. phosphoenol pyruvate B. 1,3-diphosphoglycerate C. succinyl CoAarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
![Text book image](https://www.bartleby.com/isbn_cover_images/9780134580999/9780134580999_smallCoverImage.gif)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
![Text book image](https://www.bartleby.com/isbn_cover_images/9781947172517/9781947172517_coverImage_Textbooks.gif)
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
![Text book image](https://www.bartleby.com/isbn_cover_images/9781259398629/9781259398629_smallCoverImage.gif)
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
![Text book image](https://www.bartleby.com/isbn_cover_images/9780815344322/9780815344322_smallCoverImage.gif)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
![Text book image](https://www.bartleby.com/isbn_cover_images/9781260159363/9781260159363_smallCoverImage.gif)
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
![Text book image](https://www.bartleby.com/isbn_cover_images/9781260231700/9781260231700_smallCoverImage.gif)
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education