Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
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Chapter 7, Problem 14SQ
Summary Introduction
To match: The reactions with the events.
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Match the reactions with the events. _____ glycolysis a. ATP, NADH, FADH2, _____ fermentation and CO2 form _____ citric acid cycle b. glucose to two pyruvate _____ electron transfer c. NAD+ regenerated, little ATP phosphorylation d. H+ flow via ATP synthases
Why cannot gluconeogenesis and glycolysis be active at the same time?
a. False! Gluconeogenesis starts in mitochondria, glycolysis in cytoplasm, so they can be active at the same time!
b. True! Gluconeogenesis and Glycolysis use the same reversible enzyme, so these enzymes cannot support both reactions.
c. False! Gluconeogensis uses bypasses, so that's why both pathways can be active at the same time.
d. True! Gluconeogensis makes glucose, glycolysis breaks glucose. The purpose of both enzymes is clearly opposed.
e. False! Gluconeogenesis is in the liver, glycolysis is not - it's in the muscle, so a different organ.
Which of the following statement about ATP formation in Glycolysis is True?
a. Four ATP molecules are used in the Glycolysis of one molecule of Glucose
b. Three ATP molecules are formed in the Glycolysis of one molecule of Glucose
c. Two ATP molecules are used in the Glycolysis of one molecule of Glucose
d. Two ATP molecules are formed in the Glycolysis of one molecule of Glucose
Chapter 7 Solutions
Biology: The Unity and Diversity of Life
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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- Match 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_forwardWhat is NOT required for glycolysis to occur? C a. enzymes O b.mitochondrion CC.ATP Cd.phosphate group A mutation has damaged the formation of oxaloacetate. What process will be impaired? C chemiosmosis electron transport chain citric acid cycle C ATP synthase D, Focu panon) DELLarrow_forwardEnergy investment phase in glycolysis a. Energy is generated in the form of ATP b. Oxidation reaction happens c. Phase requiring energy in the form of ATP d. Sugar 6 carbon is cleaved into 3 carbon molecules.arrow_forward
- With regards to glycolysis, all of the following statements are FALSE except . a. glycolysis does not require oxygen o b. 4 net ATP are formed O c. 2 ATP gre formed in the energy payoff phase d. 1 ATP are used in the energy payoff phase e. glycolysis occurs in the mitochondriaarrow_forwardWhich of the following statements summarizes glycolysis?O c. Consume 4 ATP and produces 2 ATP, 2 NADH and 2 pyruvatesO a. Consume 2 ATP and produces 2 ATP, 2 NADH and 2 pyruvatesO d. Consume 2 ATP and produces 4 ATP, 4 NADH and 2 pyruvatesO b. Consume 2 ATP and produces 4 ATP, 2 NADH and 2 pyruvatesarrow_forwardWith regards to glycolysis, all of the following statements are FALSE except. O a. glycolysis occurs in the mitochondria O b. 1 ATP are used in the energy payoff phase c. 2 ATP are formed in the energy payoff phase d. 4 net ATP are formed e. glycolysis does not require oxygen Next page Oarrow_forward
- Six-carbon Glucose is completely oxidized to CO2 and H2O during respiratory metabolism. When do these "decarboxylation" reactions occur? A. First five steps of glycolysis B. Last five steps of glycolysis C. Pyruvate Oxidation D. Citric Acid/Krebs Cycle E. Both C and D abovearrow_forwardCHOOSE THE CORRECT LETTER What is the mechanism of ATP synthesis in glycolysis?A.oxidative phosphorylationB.substrate level phosphorylationC. reductionD.oxidationarrow_forwardChoose TRUE statements regarding the process that occurs in cristae. I. ATP is synthesized by ATP synthase in inner membrane of mitochondrion. II. FADH2 transfers its hydrogen atoms to Citrate. III. Formation of water molecule. IV. Production of ATP in the electron transport chain is called oxidative phosphorylation. * A. I, II and IIII B. II and IV C. I, III and IV D. I, II, III and IVarrow_forward
- Steps in oxidative phosphorylation involves all of the following except 11. a. The phosphorylation energy is supplied by ATP metabolism b. Electron transfer chain moves electron from NADH and FADH2 to O2 c. Phosphorylation of ADP to ATP catalyzed by ATP synthase d. Electron do not flow to oxygen unless ATP is needed 12. List factors that can activate glucokinase for glucose metabolism in the liver 13. What are the functions of macromolecules with examples? Write the general balanced equation that shows the catabolism of glucose (GLYCOSLYSIS) to ATPS, carbon dioxide, and water. Include in the equation the formation of ATP from ADP and phosphate and oxygen utilization. 14. 15. What is post-translational processing of proteins and list 3 things that can happen to the proteins synthesized at this stage:arrow_forwardMatch the descriptions below with the correct Aerobic Respiration stage. Answers may be used more than once. first stage in which carbon is released as carbon dioxide |first stage that occurs within the mitochondria stage that does not produce any ATP A. Glycolysis |stage in which FAD is reduced B. Pyruvate oxidation |stage that produces the most ATP C. Citric acid cycle pyruvate is formed in this stage D. Oxidative phosphorylation |only stage that occurs entirely in the cytosol Jonly stage where we discussed a net gain of energy stage during which electron carriers are oxidizedarrow_forwardThe committed step of glycolysis is catalyzed by which of the follwing enzymes? a. aldolase b. hexokinase c. Phosphofructokinase-1 d. Pyruvate kinasearrow_forward
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