Which of the following is/are TRUE of an enzyme? Enzymes lower the release of free energy Enzymes are not consumed in a reaction Not all enzymes are proteins Enzymes only affect endergonic reactions Enzymes only affect exergonic reactions
Q: What is activation energy?
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Q: Which of the following describe(s) an exergonic reaction?
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A: In biological system reaction the reactant is converted into product through intermediates.
Q: Which of the following will occur if there is an increase in enzyme or substrate concentration?…
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Q: Which of the following statements about enzymes are true? Choose all that apply. Group of answer…
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Q: Endergonic reactions ____. result in products with less energy than the reactants require a net…
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Q: ich of the following statements is FALSE? Select one: a. Enzymes lower the amount of energy…
A: Answer
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Q: enzyme-controlled reactions
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Q: Answer true or false to the following statements based on the graphic:
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Q: Which of the following statements is true concerning thermodynamics of reactions within a cell? a)…
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A: Enzymes are biocatalysts that accelerate the rate of biochemical reactions. If there are no enzymes…
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A: Enzymes are proteins that catalyze or accelerate chemical processes in living organisms. Enzymes…
Q: Which of the following statements is NOT true? None of the other four answers (all are true)…
A: The energy required to break and make new bonds is known as activation energy. The reaction will…
Q: graph shows the rate of reaction data for 2 different enzymes. one of these enzymes is found in the…
A: Enzymes are biocatalysts that have a role in boosting the rate of a reaction. They are proteins that…
Q: Label the enzyme graph: 3. H F.
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Q: If energy-coupling between the reactions ADP ---> ATP and H-P --> H is direct, how many enzymes and…
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Q: Which of the following statements regarding catalysts is false? * A catalyst increases the rate of…
A: Enzymes are catalysts that work in the living body. They are the class of proteins except for…
Q: Which of the following statements is false regarding an enzyme's ability to catalyse a reaction? an…
A: Enzymes are the protein molecules which are of biological origins or sometimes may be produced…
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Q: How does an enzyme affect a chemical reaction? Select all that apply. A. Lowers the activation…
A: ENZYMES An enzyme is a type of protein found within a cell. Enzymes facilitate chemical reactions in…
Q: Which of the following statement/s is/are TRUE of enzymes? 1. They increase the rate of reaction by…
A: Answer is option c.
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Which of the following is/are TRUE of an enzyme?
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- The capacity to do work best defines: a metabolic pathway. entropy. kinetic or potential energy. a chemical equilibrium. thermodynamics.Which of the following statements is not true? Metabolic pathways _____. a. occur in a stepwise series of chemical reactions b. are speeded up by enzymes c. may break down or assemble molecules d. always produce energy (such as ATP)________ are always changed by participating in a reaction. a. Enzymes c. Reactants b. Cofactors d. Coenzymes
- Enzymes are key components in biological reactions. Which of the following statements about enzyme function in biological systems is FALSE? Enzymes are key components in biological reactions. Which of the following statements about enzyme function in biological systems is FALSE? Enzymes increase the rate of a reaction, but do not change the free energy of a reaction. Enzymes frequently work in metabolic pathways, such that the activity of one enzyme can affect the activity of a second enzyme in the pathway by altering the concentration of a substrate or product of the second enzyme. Enzymes will alter the equilibrium of a reaction such that the enzyme increases the exergonic reaction relative to the endergonic reaction. Even if the enzyme forms a bond with a substrate during a reaction, the enzyme returns to its original form at the end of the reaction.In general, catabolic reactions are oxidative and release energy are reductive and require energy are oxidative and require energy are reductive and release energyWhich of the following is correct regarding enzymes? Enzymes can speed up the rate of reaction by shifting the equilibrium of the reaction forward. Enzymes can make a nonspontaneous reaction spontaneous. Most enzymes are made up of DNA and RNA and are named based on the reaction that they catalyze. Enzymes can increase the rate of a reaction, but do not shift the equilibrium of a reaction.
- Which of the following statements is NOT true? Enzymes increase the probability that a chemical reaction will take place by lowering the activation energy The energy required to cause a chemical reaction to occur is called the activation energy Chemical reactions in living cells are catalyzed by enzymes None of the other four answers (all are true) Decomposition (degradation, catabolic) reactions are usually endergonicWhich of the following describe(s) an exergonic reaction? energy is released non-spontaneous energy is absorbed spontaneousWhich of the following statements is false regarding an enzyme's ability to catalyse a reaction? an enzyme provides a reaction surface and a hydrophilic environment for the reaction to take place an enzyme binds reactants such that they are positioned correctly and can attain their transition-state configurations an enzyme allows the reaction to go through a more stable transition state than would normally be the case an enzyme can weaken bonds in reactants through the binding process
- The energy in organic molecules is released in a series of steps rather than a single step because: the amount of energy released would be too much to capture in one reaction. more total energy is released in multiple steps than would be released in a single step. less total energy is released in multiple steps than would be released in a single step. it is not possible to release it in a single step. only a single electron can be moved at a time in a cellular reaction. IncorrectWhich statements are true? The transition state is the highest free energy that a reaction reaches during its progress from reactants to products. Enzymes alter the free energy of the transition state but not its chemical nature. High affinity binding of substrate by enzymes alters the equilibrium between reactants (substrates) and products. High affinity binding of substrate by enzymes can impede reaching the transition state. Steric and electrostatic interactions between the enzyme and substrate usually disfavor the ground state of substrate and favor the formation of the transition state. If ∆G‡(catalyzed) is less positive than ∆G‡(uncatalyzed) then the enzyme is enhancing the rate of the reaction. Low affinity binding of substrate by the enzyme must always lead to a slower rate of reaction compared to the uncatalyzed rate. There is no barrier to substrate binding to an enzyme, only to the chemical step.Which of the following statements about enzyme function is FALSE? Enzymes change shape permanently after a reaction, and can’t be re-used. Enzymes are types of proteins. Enzymes are highly specific molecules. Enzymes lower the activation energy of a reaction. Enzymes bind to substrates a an area called the “active site."
