Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 6, Problem 7TY
Summary Introduction
Introduction: ATP (Adenosine triphosphate) and proteins are very important constituents of
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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 of the following is associated with the process of ATP re-synthesis during exercise?
a.
The energy necessary is captured, in part, by the oxidation of electron transporter molecules (NADH, FADH2)
b.
Reliant upon release of stored energy obtained from dietary intake
c.
A process that requires energy as a substrate in order to drive the biochemistry of re-synthesis
d.
Facilitated through a blending of both anaerobic and aerobic metabolic pathways
e.
All of the above are true
f.
Only B and D are true
Which of the following statements is/are true regarding ATP?a. It is the body’s primary source of chemical energy.b. Its production is the main reason humans breathe oxygen.c. It is produced through the oxidation of molecular fuels like glucose.d. All of the above statements are true.
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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- Which of the following is a primary function of the active site of an enzyme? a. It binds allosteric regulators of the enzyme. b. It binds noncompetitive inhibitors of the enzyme. c. It catalyzes the reaction associated with the enzyme. d. It is activated by the presence of the end product of the metabolic pathway in which the enzyme is involved. Clear my choice Question 2 Not yet answered Points out of 2.00 Flag question Question text Which of the following statement about the mass spectrometry is true? a. Large amount of protein sample is needed for mass spectrum, and thus it is very expensive. b. It is a powerful method to determine the 3-dimensional structure of proteins. c. It can be sued for protein location in a living cell. d. It can be used to measure the molecular weight of proteins. e. It can be used to determine the stability of a protein structure in solution. Clear my choice…arrow_forwardThe following statements are either True or False. Please label accordingly. a. L-Amino reductase is an enzyme. b. Allosteric enzymes are composed of two or more protein chains. Heavy metals are examples of inhibitors. They function by binding to sulfur on cysteine amino acid residues. C. d. A reversible noncompetitive inhibitor temporarily blocks an enzyme's active site. Enzymes don't denature as easily as smaller proteins when heated or stressed due to their complex secondary and tertiary structure. e. Oxidative phosphorylation is the biochemical process by which ATP is synthesized from ADP when protons cross the inner mitochondrial membrane. f. g. DNA and RNA strands differ only in the fact that DNA forms a double helix. h. There is no secondary structure in RNA strands.arrow_forwardRecognize the true fact about coenzymes. * A. Are called prosthetic group that tightly and permanently bound to enzyme. B. Are vitamin derivatives. C. Are inorganic ions such as Zn2+ and Mg2+. D. All of the above is correct.arrow_forward
- Most synthetic reactions in which carbon dioxide is used require vitamin biotin. The biotin becomes covalently bound to a lysine molecule that is part of an enzyme, and the biotin can then attach to and carry the carbon dioxide molecule. Biotin is best referred to as: a. Prosthetic group b. Enzyme inhibitor c. Competitive inhibitor d. Organic acid e. Non-competitive inhibitorarrow_forwardMillions of people take drugs called statins to lower serum cholesterol levels. In a small percentage of people taking these drugs, muscle pain, termed myopathy, is an adverse effect. In a small percentage of these individuals, the condition progresses to rhabdomyolysis, in which the sarcolemma breaks down. a. Physicians can measure a patient’s levels of creatine phosphokinase to track the safety of using a statin. Enzyme levels that exceed ten times what is normal indicate possible rhabdomyolysis. Explain what this elevated enzyme level indicates about the physiology of the muscle cell. b. Explain why a dusky, dark color in the urine, resulting from the presence of myoglobin, also indicates muscle breakdown. HINT When muscle cells break down, where do the molecules that were inside the cell go?arrow_forwardThe correct enzyme involved in synthesizing atp from adp is: a. Kinase b. Protease c. Phosphorylasearrow_forward
- The electrogenic sodium/potassium ATPase plays a critical role in cellular physiology by A. using the energy in ATP to extrude three potassium ions out of the cell in exchange for taking two sodium ions into the cell. B. using the energy in moving sodium ions out of the cell or potassium into the cell to make ATP. C. using the energy in moving sodium ions into the cell or potassium ions out of the cell to make ATP. D. using the energy in ATP to extrude three sodium ions out of the cell in exchange for taking two potassium ions into the cell.arrow_forwardEnzymes play a fundamental role in cell function. Regarding the biochemistry of enzymes, which of the following statements is correct? A. Enzymes increase the number of molecules that get to the transition state. B. Enzymes increase the rate of a spontaneous reaction by lowering the ΔG. C. Enzymes increase the enthalpy (H) of the products compared to the reactants. D. Most enzymes can bind and react with a wide range of different substrate molecules.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_forward
- Enzymes increase a reaction’s rate by a. changing its equilibrium constant to a more favorable value. b. using specific prosthetic groups c. decreasing the reaction’s activation energy d. decreasing the reaction’s ΔG valuearrow_forwardWhich of the following statements about allosteric enzyme regulations are true. A. Allosteric regulations is always used to negatively regulate enzyme activity. B. Allosteric regulations are often end products of a biochemical pathway. C. Diffrent allosteric regulators turn enzyme activity on or off by binding the same site. D. Binding of allosteric regulators alters the conformation of an enzyme. B only B and C B and D D only A and Darrow_forwardWhich of the following statements is (are) accurate about aerobic and anaerobic respiration?a. Aerobic respiration is best for sprints.b. Anaerobic respiration is best for long distances because it does not need large amounts of oxygen.c. Aerobic respiration is faster.d. Aerobic respiration produces more energy per glucose molecule.e. Both aerobic respiration and anaerobic respiration start with glycolysis.arrow_forward
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Biomolecules - Protein - Amino acids; Author: Tutorials Point (India) Ltd.;https://www.youtube.com/watch?v=ySNVPDHJ0ek;License: Standard YouTube License, CC-BY