Endergonic reactions do which of the following? Select all that apply. A. Are nonspontaneous B. Consume energy C. Are spontaneous D. Release energy
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- Which of the following is not an example of an energy transformation? a. Heating up dinner in a microwave b. Solar panels a work c. Formation of static electricity d. None of the aboveWhich of the following statements is not correct? a. Energy cannot be created or destroyed. b. Energy cannot change from one form to another. c. Energy tends to disperse spontaneously. d. Energy can be transferred.Substance A is converted to substance B in a metabolic reaction. Which statement best describes the role of enzyme during this reaction? A. It dissolves substance A in the reaction medium. B. It speeds up the reaction without it being consumed in the process. C. It provides energy to the reaction system D. It adjusts the pH of the reaction medium.
- Which of the following statements is true concerning thermodynamics of reactions within a cell? a) Spontaneous reactions always consume energy b) Unfavorable reactions can be coupled to nonspontaneous reactions c) Compartmentalization can be used to drive up the concentration of substrates to force a reaction to occur d) All important reactions are spontaneousWhich of the following is true for all exergonic reactions? Group of answer choices A. The reactions are nonspontaneous B. A net input of energy from the surroundings is required for the reactions to proceed C. Some reactants will be converted to products D. The products have more total energy than the reactants E. The reaction proceeds with a net release of free energyA spontaneous reaction is one in which the change in free energy (ΔG) has a _______ value. (a) positive (b) negative (c) positive or negative (d) none of the preceding (ΔG has no measurable value)
- What 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)An exergonic reaction has which of the following properties? A) The △G is negative and the reaction is spontaneous. B) The △G is negative and the reaction is non-spontaneous. C) The △G is positive and the reaction is spontaneous.You have a reaction that takes 8 hours to reach completion at 20 degrees celcius. What is the likely result of changing the temperature to 30 degrees celcius? a. the reaction should take less times b. reaction time would be unaffected c. the reaction should take more time Which would be the correct answer to this question?
- the energy released by ___ reactions is used to run ________ reactions A. ENDERGONIC; ENDERGONIC B. EXERGONIC; ENDERGONIC C. EXERGONIC; EXERGONIC D. ENDERGONIC; EXERGONICWhich of the following statements is FALSE? Select one: a. Enzymes lower the amount of energy needed for a reaction. b. Enzymes are chemically unchanged during the actual catalytic process. c. Enzymes speed up the attainment of a reaction equilibrium. d. Enzymes make reactions 103 to 1020 times faster.What law of chemistry determines how much energy can be transferred when it is converted from one form to another? a. the first law of thermodynamics b. the second law of thermodynamics c. the conservation of matter d. the conservation of energy
