| 单词 | exergonic |
| 例句 | Reactions that have a negative change in free energy and consequently release free energy are called exergonic reactions. Concepts of Biology 2013-04-25T00:00:00Z Important macromolecules, such as proteins, DNA, and RNA, store considerable energy, and their breakdown is exergonic. Biology for AP Courses 2022-06-09T00:00:00Z Chemical reactions that release more energy than they absorb are characterized as exergonic. Anatomy and Physiology 2013-06-19T00:00:00Z Both endergonic and exergonic reactions require a small amount of energy to overcome an activation barrier. Biology for AP Courses 2022-06-09T00:00:00Z Endergonic reactions consume energy and exergonic reactions release energy. Biology for AP Courses 2022-06-09T00:00:00Z There is another important concept that must be considered regarding endergonic and exergonic reactions. Concepts of Biology 2013-04-25T00:00:00Z Activation energy is always negative regardless of whether the reaction is exergonic or endergonic. Biology for AP Courses 2022-06-09T00:00:00Z In many cases, it comes from exergonic reactions. Anatomy and Physiology 2013-06-19T00:00:00Z Describe the position of the transition state on a vertical energy scale, from low to high, relative to the position of the reactants and products, for both endergonic and exergonic reactions. Biology for AP Courses 2022-06-09T00:00:00Z Activation energy is always positive regardless of whether the reaction is exergonic or endergonic. Biology for AP Courses 2022-06-09T00:00:00Z Even exergonic, energy-releasing reactions require a small amount of activation energy to proceed. Concepts of Biology 2013-04-25T00:00:00Z Identify if the breakdown of sucrose is endergonic or exergonic. Biology for AP Courses 2022-06-09T00:00:00Z Activation energy is always positive regardless of whether the reaction is exergonic or endergonic. Biology for AP Courses 2022-06-09T00:00:00Z Activation energy is always positive regardless of whether the reaction is exergonic or endergonic. Biology for AP Courses 2022-06-09T00:00:00Z In this way, ATP is a direct link between the limited set of exergonic pathways of glucose catabolism and the multitude of endergonic pathways that power living cells. Biology for AP Courses 2022-06-09T00:00:00Z A reaction with a negative ∆G that gives off energy is called an exergonic reaction. Biology for AP Courses 2022-06-09T00:00:00Z Look at each of the processes shown in Figure 6.8 that show examples of endergonic and exergonic processes. Biology for AP Courses 2022-06-09T00:00:00Z Cells use ATP to perform work by coupling the exergonic reaction of ATP hydrolysis with endergonic reactions. Biology for AP Courses 2022-06-09T00:00:00Z Endergonic reactions take place slowly and exergonic reactions take place quickly. Biology for AP Courses 2022-06-09T00:00:00Z ATP utilizes energy to power exergonic reactions by hydrolysis of ATP molecule. Biology for AP Courses 2022-06-09T00:00:00Z Reactions that have a negative ∆G and consequently release free energy are called exergonic reactions. Biology for AP Courses 2022-06-09T00:00:00Z The free energy derived from exergonic ATP hydrolysis is used to pump sodium and potassium ions across the cell membrane. Biology for AP Courses 2022-06-09T00:00:00Z Think: exergonic means energy is exiting the system. Biology for AP Courses 2022-06-09T00:00:00Z Look at each of the processes shown, and decide if it is endergonic or exergonic. Biology for AP Courses 2022-06-09T00:00:00Z Sand art being destroyed is exergonic, no change in enthalpy and entropy increases. Biology for AP Courses 2022-06-09T00:00:00Z Sand art being destroyed is exergonic, no change in enthalpy and entropy decreases. Biology for AP Courses 2022-06-09T00:00:00Z Sand art being destroyed is exergonic, no change in enthalpy and entropy increases. Biology for AP Courses 2022-06-09T00:00:00Z A ball rolling downhill is exergonic process, enthalpy decreases and no change in entropy. Biology for AP Courses 2022-06-09T00:00:00Z On the other hand, the catabolic process of breaking sugar down into simpler molecules releases energy in a series of exergonic reactions. Biology for AP Courses 2022-06-09T00:00:00Z Figure 6.8 shows some other examples of endergonic and exergonic reactions. Biology for AP Courses 2022-06-09T00:00:00Z A ball rolling downhill is exergonic process, enthalpy decreases and no change in entropy. Biology for AP Courses 2022-06-09T00:00:00Z A ball rolling downhill is exergonic process, enthalpy decreases and entropy increases. Biology for AP Courses 2022-06-09T00:00:00Z Compost pile decomposition is exergonic, enthalpy increases and entropy increases. Biology for AP Courses 2022-06-09T00:00:00Z Compost pile decomposition is exergonic, enthalpy increases and entropy increases. Biology for AP Courses 2022-06-09T00:00:00Z Additionally, the burning of many fuels, which is strongly exergonic, will take place at a negligible rate unless their activation energy is overcome by sufficient heat from a spark. Biology for AP Courses 2022-06-09T00:00:00Z If cellular temperatures alone provided enough heat energy for these exergonic reactions to overcome their activation barriers, the essential components of a cell would disintegrate. Biology for AP Courses 2022-06-09T00:00:00Z Even exergonic reactions require a small amount of energy input to get going before they can proceed with their energy-releasing steps. Biology for AP Courses 2022-06-09T00:00:00Z A reaction with a negative ∆G that gives off energy is called an exergonic reaction. Biology for AP Courses 2022-06-09T00:00:00Z Cells use ATP by coupling the exergonic reaction of ATP hydrolysis with endergonic reactions, with ATP donating its phosphate group to another molecule via a process called phosphorylation. Biology for AP Courses 2022-06-09T00:00:00Z Cells couple the exergonic reaction of ATP hydrolysis with endergonic reactions, allowing them to proceed. Biology for AP Courses 2022-06-09T00:00:00Z Here, the exergonic reaction of ATP hydrolysis is coupled with the endergonic reaction of converting glucose into a phosphorylated intermediate in the pathway. Biology for AP Courses 2022-06-09T00:00:00Z Whether the reaction is exergonic or endergonic determines whether the products in the diagram will exist at a lower or higher energy state than both the reactants and the products. Biology for AP Courses 2022-06-09T00:00:00Z Cells use ATP to perform work by coupling the exergonic reaction of ATP hydrolysis with endergonic reactions. Biology for AP Courses 2022-06-09T00:00:00Z ATP utilizes the energy released from the coupling reactions and that energy is used to power the endergonic and exergonic reactions. Biology for AP Courses 2022-06-09T00:00:00Z This step is irreversible because it is highly exergonic. Biology for AP Courses 2022-06-09T00:00:00Z |
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