Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Briefly explain the concept of coupled reactions.
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- Label the following statements true or false: (a) A reaction is said to be spontaneous when it can proceed in either the forward or reverse direction. (b) A spontaneous process always happens very quickly.arrow_forwardWhich answers apply. (There could be more than one) Hydrolysis of ATP into ADP and inorganic phosphate releases energy because the reaction... a.) oxidizes ATP b.) reduces ATP c.) increases resonance d.) decreases resonance e.) increases entropy f.) decreases entropyarrow_forwardContrast synthesis and decomposition reactions, andexplain how catabolism and anabolism relate to these twotypes of reactionsarrow_forward
- Briefly explain how enzymes decrease the activation energy of biochemical reactions.arrow_forwardConsider the following free energy diagram for an uncatalyzed and enzyme-catalyzed reaction. Select all the statements that are true. Without enzyme With enzyme A+B Time AB Oa. The reaction is now spontaneous due to the addition of enzyme b. The rate of the enzyme catalyzed reaction is faster than the uncatalyzed reaction O C. The reaction is exergonic O d. The change in free energy for the reaction is greater in the catalyzed reaction, compared to the uncatalyzed reaction e. The enzyme stabilizes the transition state for the reaction Released Energy pesarrow_forwardDefine the three major types of chemical reactions: synthesis, decomposition, and exchange. Comment on the nature of oxidation-reduction reactions and their importance.arrow_forward
- Distinguish between exergonic and endergonic reactions, and give examples of how they may be coupled.arrow_forwardThe following questions are based on the reaction A+ B ↔ C+D shown in Figure 8.1. 1. Which of the following terms best describes the progress of the reaction with respect to free energy change? a) endergonic, ∆G> 0 b) exergonic, ∆G> 0 c) exergonic, ∆G< 0 d) endergonic, ∆G< 0 2. Which of the following in Figure 8.1 remains unchanged by having an enzyme included? a) b b) d c) a d) c 3. The part labeled “C” on the above graph represents a) Energy of activation without enzyme b) Energy of activation with enzyme c) Amount of free energy released d) amount of energy required for the reaction progressarrow_forward
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