Which of the following statements is true concerning catabolic pathways? Question 8 options: They are nonspontaneous and do not need enzyme catalysis. They supply energy, primarily in the form of ATP, for the cell's work. They are endergonic. They build up complex molecules such as proteins from simpler compounds. They combine molecules into more energy-rich molecules.
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Catabolic pathways _____. A) combine molecules into more energy-rich molecules B) supply energy, primarily in the form of ATP, for the cell's work C) are endergonic D) are spontaneous and do not need enzyme catalysis
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Which of the following is TRUE for exergonic reactions? The products have more free energy than the reactants. The products have less free energy than the reactants. Exergonic reactions can always be completed spontaneously. An input of energy from the surroundings is required for the reactants to proceed. The reactions upgrade the free energy of the products at the expense of energy from the surroundings. ATP generally energizes cellular processes by releasing heat upon hydrolysis, acting as a catalyst for the direct chemical transfer of a phosphate group. By releasing an inorganic phosphate, it drives reactions by coupling with them. Light flashes can also energize chemical reactions. Which of the following statements is TRUE concerning catabolic pathways? They combine molecules into more complex and energy-rich molecules. They are usually coupled with anabolic pathways, which supply energy in the form of ATP. They involve endergonic reactions that break down complex molecules into simpler ones. They are spontaneous and do not need enzyme catalysis. They build up complex molecules such as proteins from simpler compounds. In an organism, the energy available for work is called free energy because it can be obtained without any cost. It can be spent with no cost to the universe. An organism can live off of it if necessary, and it is available for work. It is equivalent to the system's total energy.
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Which of the following statements is TRUE about catabolic reactions? They are non-spontaneous. They are energetically coupled to anabolic reactions through ATP. They are exergonic. They break down complex molecules into simpler ones.
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