Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Textbook Question
Chapter 6, Problem 6TY
In a
- a. reduced.
- b. phosphorylated.
- c. oxidized.
- d. decarboxylated.
- e. methylated.
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Students have asked these similar questions
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.
Succinate dehydrogenase catalyzes the stereospecific dehydrogenation of succinate to fumarate. In this reaction, two electrons are stored in a chemical called:
a.
GTP
b.
cAMP
c.
ATP
d.
NADH
e.
FADH2
In the first step of glycolysis, glucose can be phosphorylated to glucose-6-phosphate, because..
A. transfer of a phosphate from ATP to glucose is endergonic.
B. a phosphoanhydride bond has higher energy of hydrolysis than is required for formation of a phosphoester bond.
C. the reaction does not require an enzyme.
D. the reaction is highly reversible.
E. All of the above are correct.
Chapter 6 Solutions
Biology
Ch. 6.1 - Which do you think has more entropy, a NaCl...Ch. 6.1 - Prob. 2CCCh. 6.2 - Prob. 1CCCh. 6.2 - Prob. 2CCCh. 6.2 - Prob. 1CSCh. 6.2 - Prob. 1EQCh. 6.2 - Prob. 2EQCh. 6.2 - Prob. 3EQCh. 6.3 - Prob. 1CSCh. 6.3 - Prob. 2CS
Ch. 6.4 - What are advantages of protein degradation?Ch. 6 - Reactions that release free energy are a....Ch. 6 - Enzymes speed up reactions by a. providing...Ch. 6 - Prob. 3TYCh. 6 - Researchers analyzed a cell extracta mixture of...Ch. 6 - In biological systems, ATP functions by a....Ch. 6 - In a chemical reaction, NADH is converted to NAD+...Ch. 6 - Prob. 7TYCh. 6 - Prob. 8TYCh. 6 - Prob. 9TYCh. 6 - Autophagy provides a way for cells to a. degrade...Ch. 6 - Prob. 1CQCh. 6 - Prob. 2CQCh. 6 - Prob. 3CQCh. 6 - Prob. 1COQCh. 6 - Prob. 2COQ
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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
- Which of the following is true about the phosphorylation of proteins? A. Proteins are usually phosphorylated at amino acids that have hydroxyl group-containing side chains. B. Phosphorylation of proteins is catalyzed by phosphatases. C. Phosphoryation always activates enzymes. D. The specificity in phosphorylation is conferred solely by the amino acid to be phosphorylated.arrow_forwardNAD+ and FAD are molecules that: (Select all choices that apply) A. Are integral with the membrane B. Are found inside of animal cells C. are the reduced forms of the molecules D. Are found inside of plant cells E. Are involved in cellular respiration F. Serve as the Terminal Electron Acceptor G. Transport electrons from one metabolic pathway to anotherarrow_forwardNAD+ and FAD are examples of a. enzymes. b. high-energy organic molecules that are digested in cellular respiration. c. allosteric inhibitors, which participate in regulating enzymes. d. coenzymes that are required by some enzymes to function.arrow_forward
- 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.arrow_forwardWhich of the following statements is TRUE? Select one: A. Lactic acid is a product of aerobic respiration; ethyl alcohol is a product of fermentation. B. Oxidation is the loss of electrons; reduction is the gain of electrons. C. Oxygen is a product of cellular respiration; carbon dioxide is a product of photosynthesis. D. Glucose is a product of aerobic respiration; lactic acid is a product of anaerobic respiration.arrow_forwardWhich of these statements about ATP is true?a.The bond joining ADP and the third phosphate is a high-energy bond.b.The formation of ATP is coupled to energy-liberating reactions.c.The conversion of ATP to ADP and Pi provides energy for biosynthesis, cell movement, and other cellular processes that require energy.d.ATP is the “universal energy carrier” of cells.e. .All of these are true.arrow_forward
- Which of the following statements concerning ATP is true? a. The free energy value for the hydrolysis of ATP is nearly the same for ADP. b. The free energy value for the hydrolysis of ATP is greater than that for ADP. c. ATP hydrolysis is more likely at pH 5 than at pH 7. d. One mole of glycerate-1,3-bisphosphate can phosphorylate one mole of AMP to yield ATP.arrow_forwardOne of the enzymes involved in glycolysis, aldolase, requires Zn2+ for catalysis. Under conditions of zinc deficiency and the enzyme lacks zinc, it would be referred to as the: a. apoenzyme. b. coenzyme. c. holoenzyme. d. prosthetic group. e. substrate.arrow_forwardThe complete catabolism of one molecule of C6H12O6 into carbon dioxide and water produces a larger amount of ATP in aerobic prokaryotes than it does in aerobic eukaryotes because aerobic prokaryotes: A. always produce ethanol rather than lactic acid as a byproduct B. generate more molecules of NADH during aerobic respiration C. have no transport costs to get NADH into mitochondria D. generate more molecules of FADH2 during aerobic respiration E. are able to use pyruvate as a substrate for fermentationarrow_forward
- Which of the following statements about folic acid is not true? a. Folic acid is activated by folate synthase. b. Folic acid structure contains a pteridine ring and para-amino benzoic acid. c. NADPH is required in the reactions activating folic acid. d. Tetrahydrofolate is the biologically active derivative of folic acid.arrow_forwardWhich of the following statements regarding protein phosphorylation is FALSE? Select one: A. Phosphorylation is catalyzed by enzymes called protein kinases. B. Phosphorylation inhibits the activity of enzymes C. Aspartate residues can be phosphorylated. D. Phosphorylation is a reversible covalent modification of enzymes. Which is usually the slowest way to regulate a reaction in a metabolic pathway? Select one: A. Allosteric modulation B. Covalent modification C. Changing the enzyme concentration D. All of the above are usually equally as fastarrow_forwardWhich of the following is true of metabolism? A. Degradative reactions require an input of energy. B. Synthetic pathways are anabolic. C. Catabolism and anabolism are linked by O2. D. Catabolic reactions require the breakdown of ATP, and anabolic reactions generate ATP.arrow_forward
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