Essentials of Biology (5th International Edition)
5th Edition
ISBN: 9781259660269
Author: Sylvia S. Mader, Dr., Michael Windelspecht
Publisher: Mcgraw-Hill
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Textbook Question
Chapter 5.2, Problem 4A
Identify the incorrect statement
a. When ATP becomes ADP + ℗ the amount of energy released is enough for a biological purpose.
b. The structure of ATP allows its breakdown to be easily coupled.
c. ATP can be easily recycled
d. ATP consists of an adenine ,a sugar, and two phosphates.
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Which 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.
Which one of the following statement is CORRECT for ATP? Select one:
a. Divalent cation C12- stabilize ATP and blocks the driving force for association and make ATP unstable
b. In pure water ATP Is very stable and high water concentration would only drive this reaction forward with the help of enzyme
c. Phosphate bonds of ATP is "highly transferable" bonds. d. ATP is very unstable in salt solutions having near neutral pH therefore spontaneously dissociate into ADP and P
Synthesis of proteins requires the input of energy, which can be provided by: a. enzymes b. synthesis of ATP from ADP and Pi c. hydrolysis of ATP to form ADP and Pi d. amino acids e. isotopes
Chapter 5 Solutions
Essentials of Biology (5th International Edition)
Ch. 5.1 - Prob. 5.1LOCh. 5.1 - Prob. 1LOCh. 5.1 - Prob. 2LOCh. 5.1 - Prob. 3LOCh. 5.1 - Prob. 1CYPCh. 5.1 - Prob. 2CYPCh. 5.1 - Prob. 3CYPCh. 5.1 - Prob. 1ACh. 5.1 - Prob. 2ACh. 5.1 - Prob. 3A
Ch. 5.2 - Prob. 1LOCh. 5.2 - Prob. 2LOCh. 5.2 - Prob. 3LOCh. 5.2 - Prob. 1CYPCh. 5.2 - Prob. 2CYPCh. 5.2 - Prob. 3CYPCh. 5.2 - Identify the incorrect statement a. When ATP...Ch. 5.2 - Prob. 5ACh. 5.3 - Illustrate how metabolic reactions are catalyzed...Ch. 5.3 - Identify the role that enzymes play in metabolic...Ch. 5.3 - Prob. 3LOCh. 5.3 - Prob. 4LOCh. 5.3 - Prob. 5LOCh. 5.3 - Prob. 1CYPCh. 5.3 - Prob. 2CYPCh. 5.3 - Summarize the benefit of using feedback inhibition...Ch. 5.3 - 6. In the induced fit model of enzyme action,
a....Ch. 5.3 - Prob. 7ACh. 5.3 - Prob. 8ACh. 5.4 - Prob. 1LOCh. 5.4 - Prob. 2LOCh. 5.4 - Prob. 3LOCh. 5.4 - Prob. 4LOCh. 5.4 - Prob. 5LOCh. 5.4 - Prob. 1CYPCh. 5.4 - Prob. 2CYPCh. 5.4 - Prob. 3CYPCh. 5.4 - Prob. 4CYPCh. 5.4 - Prob. 9ACh. 5.4 - Prob. 10ACh. 5.4 - Match the items to the correct answers in the key....Ch. 5.4 - Prob. 12ACh. 5.4 - Prob. 13ACh. 5.4 - Prob. 14ACh. 5.4 - Prob. 15ACh. 5 - Prob. 1BYBCh. 5 - Prob. 2BYBCh. 5 - Prob. S1.1BYBCh. 5 - Section 3.2 What are the four levels of structure...Ch. 5 - Prob. S4.2BYBCh. 5 - Prob. 1TCCh. 5 - Cystic fibrosis is a genetic disorder that results...Ch. 5 - Prob. 3TC
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- You are studying a biochemical pathway that requires ATP as an energy source. To your dismay, the reactions soon stop, partly because the ATP is rapidly used up and partly because an excess of ADP builds up and inhibits the enzymes involved. You are about to give up when the following table from a biochemistry textbook catches your eye. A. ذن فه B. Substrates C. Creatine + ATP ATP + H₂O Pyrophosphate + H₂O Glucose-6-phosphate + H₂O Enzyme A Enzyme B Enzyme C Enzyme D Products Creatine-phosphate + ADP Which of the following reagents is/are most likely to revitalize your reaction? a vast excess of ATP glucose 6-phosphate and enzyme D creatine phosphate and enzyme A D. pyrophosphate ADP + Phosphate 2 Phosphate Glucose + Phosphate AG (kJ/mol) +3 -7.3 -7.0 -3.3arrow_forwardRegarding phosphofructokinase, which of the following statements is true: a. Low [ATP] stimulates the enzyme, but fructose-2,6-bisphosphate inhibits. b. High [ATP] stimulates the enzyme, but fructose-2,6-bisphosphate inhibits. c. The enzyme is more active at low [ATP] than at high, and fructose-2,6-bisphosphate activates the enzyme. d. High [ATP] stimulates the enzyme, and fructose-2,6-bisphosphate activates.arrow_forwardPlease help with hw :} ATP is the energy currency of the cell.a. What about the structure of ATP makes it effective at storing free energy? b. Define what is meant by an endergonic or exergonic reaction. c. Explain how ATP can facilitate chemical reactions in the cell, using the terms endergonic and exergonic d. An enzyme is a biological catalyst. Explain what that means in terms of chemical reactions, including a discussion of transition states. e. Do enzymes affect the overall free energy change of a reaction? Explain.arrow_forward
- For the following tetrapeptide: CKSWa. Draw its complete protonic equilibria. Indicate the net charge of each form and encircle the zwitterionic form. b. Give the full name of the tetrapeptide. c. Calculate its IpH. d. If the tetrapeptide was subjected to electrophoresis using a buffer solution at pH 7, at which electrode it will migrate?arrow_forwardATP is high-energy storage molecule in part because: A. Its hydrolysis results in separation of like charges. B. The hydrolysis reaction has a high activation energy.C. Its ribose is oxidized during the process, which is exergonic.D. It is very soluble.arrow_forwardCells need to be buffered because A. they need to be able to increase or decrease their cytosolic pH to adapt to various environmental conditions. B. their proteins work best at low pH. C. they need to maintain a specific cytosolic pH to keep biomolecules from being ionized. D. they need to maintain a specific cytosolic pH to keep biomolecules at their optimal ionic state.arrow_forward
- Which one of the following statement is CORRECT for ATP? Select one: a. Divalent cation Cl2- stabilize ATP and blocks the driving force for association and make ATP unstable. O b. Phosphate bonds of ATP is "highly transferable" bonds. O c. ATP is very unstable in salt solutions having near neutral pH therefore spontaneously dissociate into ADP and Pi. O d. In pure water ATP is very stable and high water concentration would only drive this reaction forward with the help of enzyme.arrow_forwardWhich 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_forwardWhich of the following statements is a lie? Select one: a.Energy is released when the terminal phosphate group is removed, known as dephosphorylation, whereas energy is needed when a phosphate group is added, also known as phosphorylation. b.A living organism has an unlimited supply of energy. c.Energy mediated by ATP comes from the metabolism of different isomers of C6H12O6 (sugar), such as glucose, fructose, and galactose. Which of the following statements is a lie? Select one: a.The transfer of energy in living systems use electrons to allow the cell to transfer energy in large amounts. b.Electrons play an important role in redox reactions. This is true because it is the electrons that undergo the redox reactions in living systems. c.For nicotinamide adenine (NAD), its oxidized form is NAD+ while its reduced form is NADH. This is true because NAD+ can accept electrons from an organic molecule.arrow_forward
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