Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 6, Problem 21CTQ
Energy transfers take place constantly in everyday activities. Think of two scenarios: cooking on a stove and driving. Explain how the second law of
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Chapter 6 Solutions
Biology 2e
Ch. 6 - Figure 6.8 Look at each of the processes shown,...Ch. 6 - Figure 6.10 If no activation energy were required...Ch. 6 - Figure 6.14 The hydrolysis of one ATP molecule...Ch. 6 - Energy is stored long-term in the bonds of and...Ch. 6 - DNA replication involves unwinding two strands of...Ch. 6 - Consider a pendulum swinging. Which type(s) of...Ch. 6 - Which of the following comparisons or contrasts...Ch. 6 - Which of the following is the best way to judge...Ch. 6 - Which of the following is not an example of an...Ch. 6 - In each of the three systems, determine the state...
Ch. 6 - The energy released by the hydrolysis of ATP is...Ch. 6 - Which of the following molecules is likely to have...Ch. 6 - Which of the following is not true about enzymes...Ch. 6 - An allosteric inhibitor does which of the...Ch. 6 - Which of the following analogies best describes...Ch. 6 - Does physical exercise involve anabolic and/or...Ch. 6 - Name two different cellular functions that require...Ch. 6 - Explain in your own words the difference between a...Ch. 6 - Describe the position of the transition state on a...Ch. 6 - Imagine an elaborate ant farm with tunnels and...Ch. 6 - Energy transfers take place constantly in everyday...Ch. 6 - Do you think that the Ea for ATP hydrolysis is...Ch. 6 - With regard to enzymes, why are vitamins necessary...Ch. 6 - Explain in your own words how enzyme feedback...
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- Within biological systems, there are always reactions that seem to occur when thermodynamically, they should not. An example is in the process of glycolysis (the conversion of glucose to pyruvate) which has ΔG°' = 2183.6 kJ/mol. How is glycolysis possible with such a large, positive ΔG°', when cells are governed by the laws of thermodynamics?arrow_forwardCalculate the concentration of CuS in a solution in which [H3O+] is held constant at 2.0×10-4 M. (Cite the source of your thermodynamic constants)arrow_forwardWhy the endergonic reactions are thermodynamically unfavorable?Although endergonic reactions are thermodynamically unfavorable, yet many such reactions occur in the human body. Suppose the human body is an isolated system. Then how those reactions can be carried out in the human body?arrow_forward
- The existence of life is dependents on bioenergetics to overcome the restrictions of thermodynamics. What does the term bioenergetics mean? Provide one well-structured example of how bioenergetics provides the necessary conditions required for life to exist given the restrictions of thermodynamics.arrow_forwardUse the Michaelis-Menten equation to complete the enzyme kinetic data set, when Km is known to have a value of 1 mmol L-1arrow_forwardWhich of the following is a description of an example of the second law of thermodynamics? Some chemical energy in glucose transforms to chemical energy in ATP. O The kinetic energy of wind turns the blades of a wind turbine. The chemical energy in gasoline is transformed to kinetic energy to drive a car. The mechanical energy of flowing water turns a turbine. Some chemical energy in gasoline is transformed to heat while driving a car.arrow_forward
- On the free energy diagram shown, label the intermediate (s) and transition state(s). Is the reaction thermodynamically favorable? Reaction.arrow_forwardWhy the endergonic reactions are thermodynamically unfavorable?arrow_forwardWhat terms would best describe the above coupled reaction?A. it is non-spontaneous and endothermic (because the overall Go is positive)B. it is spontaneous and exothermic (because the overall Go is positive)C. it is non-spontaneous and exothermic (because the overall Go is positive)D. it is spontaneous and exothermic (because the overall Go is negative)E. it is non-spontaneous and endothermic (because the overall Go is negative)arrow_forward
- The following were obtained in a study of an enzyme known to follow Michaelis-Menten kinetics: Reaction Velocity (mmol/min) Substrate added (mmol/L) 217 0.8 325 2 433 4 488 6 647 20 652 1000 The Km for this enzyme is approximately _____________. (Round to the nearest integer)arrow_forwardRefer to the figure shown here, and determine the value of E for the overall oxidation/reduction reaction (refer to the book/lecture slides if you need help with the overall reaction). 11/12102 + 2H* + 2e¯ → H₂0 NAD + H* + 2e → NADH O-1.136 volts 0.496 volts +1.136 volts -0.496 volts EU (volts) – 0.320arrow_forwardGiven the following enzyme kinetics data, determine the maximal velocity and the Michaelis constant of the enzyme. Show your solutionsarrow_forward
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