Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 7, Problem 6SQ
Summary Introduction
Introduction:
Glycolysis is the series of reactions that produce ATP by converting glucose to pyruvate. The glycolysis pathway occurs in the cytoplasm of all cells, and it is the first steps in aerobic respiration. The reactions convert one six-carbon molecule of glucose to two three-carbon molecules of pyruvate. Each of the two pyruvate molecules that formed in glycolysis has two carbon–carbon bonds. The next two steps of aerobic respiration, acetyl-CoA formation and the citric acid cycle break both of these bonds. The energy released when the bond breaks is captured in electrons carried by NADH and in high-energy phosphate bonds of ATP. All the carbon atoms that were once part of glucose end up in CO2, which diffuses out of the cell.
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Students have asked these similar questions
After the citric acid cycle reactions run________ , one six-carbon glucose molecule has been completely broken down to CO2. a. once b. twice c. six times d. twelve times
D
Question 3
3. The following descriptions are for the components of oxidative phosphorylation. List the name
of the complex, coenzyme, cytochrome, or enzyme describe.
a. Utilizes FADH₂.
b. Delivers e from CoQH₂ to cytochrome c.
c. Protons flow through this from high concentration to
low concentration and ATP is produced.
d. Combines oxygen and protons to make water. Pumps
protons across the membrane.
e. Utilizes NADH/H* to pump protons across the
membrane.
f. Mobile carrier of e. Moves in the intermembrane
space.
wadrone
g. Also known as ubiquinone and is soluble in the lipid
membrane.
The direct products from the citric acid cycle are ________.
a.
temporary electron storage compounds
b.
final products of cellular respiration
c.
formed from the direct consumption of oxygen
Chapter 7 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 7 - Prob. 1DAACh. 7 - Prob. 2DAACh. 7 - Prob. 3DAACh. 7 - Is the following statement true or false? Unlike...Ch. 7 - Glycolysis starts and ends in the ___. a. nucleus...Ch. 7 - Which of the following pathways requires molecular...Ch. 7 - Which molecule does not form during glycolysis? a....Ch. 7 - In eukaryotes, the final reactions of aerobic...Ch. 7 - Prob. 6SQCh. 7 - Prob. 7SQ
Ch. 7 - Most of the energy that aerobic respiration...Ch. 7 - Put the following pathways in the order they occur...Ch. 7 - Which of the following is not produced by an...Ch. 7 - Prob. 11SQCh. 7 - Prob. 12SQCh. 7 - Which of the following molecules can be oxidized...Ch. 7 - Prob. 14SQCh. 7 - Match the term with the best description. _____...Ch. 7 - Prob. 1CTCh. 7 - Prob. 2CT
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- Glycolysis, which can occur in all living cells, correctly occurs in the cell structure _____, and the products that result respectively are Select one: a. mitochondria: 2 ATP, pyruvate, NADH b. cytoplasm: 2 ATP, pyruvate, NADH c. cytoplasm: 36 ATP, CO2, H2O d. mitochondria: 36 ATP, CO2, H2Oarrow_forwardGlycolysis and Krebs cycle pror TWGPalygXphYW9-zKh7Bt-bdNc75nprw176dBUWOA mResponse 23. Select the situation that will NOT happen if ATP synthase is not functioning. O A. Damage to the chemiosmosis process. B. The number of ATP produced is reduced. C. ATP can be produced through oxidative phosphorylation. D. Accumulation of proton ions in the intercellular membrane. 24. Oxidation of organic compounds that produced carbon dioxide, water and release of free energy causing reduction of the final acceptor molecule: oxygen. Justify the reason. ray bonds than those inarrow_forward51. THE ONLY INTERMEDIATE IN THE CITRIC ACID CYCLE WHICH HAVE FIVE CARBON?A. OXALOACETATE B. ALPHA-KETOGLUTARATEC. SUCCINATED. ISOCITRATE 52. THE RATE AT WHICH CITRIC ACID CYCLE OPERATES IS/ARE CONTROLLED BY WHICH OF THE FOLLOWING?A. ATP & NADH LEVELSB. FADH2 & NADH LEVELS C. AMP & ATP LEVELS D. ATP & GTP LEVELS 53. CITRIC ACID CYCLEOR THE KREB'S CYCLE IS WHAT TYPE OF METABOLIC PATHWAY? A. NEITHER LINEAR NOR CYCLIC B. CYCLIC C. LINEAR D. BOTH LINEAR & CYCLIC 54. A NUCLEOTIDE TRIPHOSPHATE WHICH IS INVOLVED IN BOTH PROTEIN AND CARBOHYDRATE METABOLISM? A. UTP B. GTP C. CTPD. ATP 55. A COENZYME WHICH HAVE RIBITOL, THE REDUCED FORM OF RIBOSEAS IT'S SUGAR?A. NAD B. FADH2 C. FAD D. NADHarrow_forward
- Each turn of the citric acid cycle directly produces ________. a. 2 carbon dioxide molecules b. 2 ATP molecules c. 3 NADH and 1 FADH 2arrow_forward1. Numbers of hydrogen formed between adenine and thymine. 2. What is the general description of what occurs in the first step of citric acid cycle. 3. Which electron carrier shuttles between protein complexes I and III? a. CoQ B. CoB C. CoA D. CoC 4.which stage of cellular respiration produces the most atp? A.etc B. Atceyl CoA charging C. Krebs cycle D. Glycolysis 5. Oxidative decarboxylation involves loss of?arrow_forwardMatch each term with its description. a. Electron transport system Part of the cell in which citric acid cycles take place Last step in cellular respiration Compound that carries high energy electrons to the electron transport system b. Pyruvate C Mitochondria d. Acetyl coenzyme A e. Glycolysis f. NAD 9-Cytosol h. Lactate 1. Anaerobic i. Citric acid cyclearrow_forward
- 42 Products of glucose oxidation essential for electron transport chain are ____. Select one: a. pyruvate b. NADPH and ATP c. acetyl-CoA d. NADH and FADH2arrow_forwardMatch each term with its description. g.vPart of the cell in which citric acid cycles take place a. Cytosol |Converted from pyruvic acid if no oxygen is present b. NAD End product of glycolysis C. Electron transport system d. Acetyl coenzyme A e. Lactate f. Pyruvate g. Mitochondria h. Anaerobic i. Glycolysis j. Citric acid cyclearrow_forward1. Label each statement about citric acid cycle as true or false. a. The citric acid cycle is a cyclic metabolic pathway that involves eight steps. b. Four molecules of NADH and one molecule of FADH2 are formed in the cycle. c. The cycle is activated when the amount of available ATP is low and energy demands are high. d. The cycle is inhibited when the concentration of NADH is low.arrow_forward
- 1. Label each statement about citric acid cycle as true or false and state why you say so. a. The citric acid cycle is a cyclic metabolic pathway that involves eight steps. b. Four molecules of NADH and one molecule of FADH2 are formed in the cycle. c. The cycle is activated when the amount of available ATP is low and energy demands are high. d. The cycle is inhibited when the concentration of NADH is low.arrow_forwardThe Citric Acid Cycle takes the molecule of acetyl CoA and generates ________ per glucose molecule. Group of answer choices A. 3 ATP B. 2 NADH, 4 ATP C. NADH, 2 ATP D. 6 NADH, 2 FADH2, and 2 ATParrow_forwardWhich of the following statements is true about the citric acid cycle a. The Citric Acid Cycle is an 8-step cycle that produces the most electron carrier molecules throughout the process of cellular respiration. b. In Citric Acid Cycle, both the acetyl group and coenzyme A of Acetyl CoA are combined to oxaloacetate. c. In Citric Acid Cycle, glucose is only partially broken down and there are still remnants of glucose after this process. d. The ATP produced during this process is via oxidative phosphorylationarrow_forward
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