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24. Examine the graph to the right. Is the reaction depicted exothermic or endothermic? Explain your answer. 25. The graph to the right represents a non-enzyme catalyzed reaction. Draw a line on the graph indicating what the activation energy would look like if there was an enzyme present. 26. Which letter depicts the activation energy (EA) without the enzyme present? 27. What does the letter 'E' represent? Energy D A A Progress of Reaction

24. Examine the graph to the right. Is the reaction depicted exothermic or endothermic? Explain your answer. 25. The graph to the right represents a non-enzyme catalyzed reaction. Draw a line on the graph indicating what the activation energy would look like if there was an enzyme present. 26. Which letter depicts the activation energy (EA) without the enzyme present? 27. What does the letter 'E' represent? Energy D A A Progress of Reaction

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Can i have a check on 24-27
BIOL 150. Enzymes Conversely, in the graph below, the products have more free energy than the reactants. Reactions that absorb heat from the environment are known as endothermic reactions. A common example is a chemical ice pack which typically contains water and a packet of ammonium chloride. To activate the ice pack, the barrier separating the two substances must be physically broken so the two substances may react. Enzymes may also facilitate endothermic reactions. 24. Examine the graph to the right. Is the reaction depicted exothermic or endothermic? Explain your answer. Mon 25. The graph to the right represents a non-enzyme catalyzed reaction. Draw a line on the graph indicating what the activation energy would look like if there was an enzyme present. 26. Which letter depicts the activation energy (EA) without the enzyme present? 27. What does the letter 'E' represent? Name: Activation energy Energy Reactants Progress of Reaction Products Endothermic 8 2007 In D A Heat absorbed Progress of Reaction 8
Transcribed Image Text:BIOL 150. Enzymes Conversely, in the graph below, the products have more free energy than the reactants. Reactions that absorb heat from the environment are known as endothermic reactions. A common example is a chemical ice pack which typically contains water and a packet of ammonium chloride. To activate the ice pack, the barrier separating the two substances must be physically broken so the two substances may react. Enzymes may also facilitate endothermic reactions. 24. Examine the graph to the right. Is the reaction depicted exothermic or endothermic? Explain your answer. Mon 25. The graph to the right represents a non-enzyme catalyzed reaction. Draw a line on the graph indicating what the activation energy would look like if there was an enzyme present. 26. Which letter depicts the activation energy (EA) without the enzyme present? 27. What does the letter 'E' represent? Name: Activation energy Energy Reactants Progress of Reaction Products Endothermic 8 2007 In D A Heat absorbed Progress of Reaction 8
BIOL 150. Enzymes Activity 7. Activation Energy Activation energy may be defined as the minimum amount of energy required to get the reactants in a chemical reaction to the transition state, in which bonds are broken and new bonds are formed. The activation energy of a reaction is usually denoted by E. By now you know that enzymes are proteins that catalyze chemical reactions. Enzymes lower the activation energy needed to start a reaction. Name: You may use the foam pieces to simulate the activation energy needed in a reaction with and without an enzyme. Begin by connecting the green foam pieces. To illustrate the activation energy without the enzyme interaction, pull the apart the two green pieces with your hands. Reconnect the green pieces. This time lock them into the active site on the gray A enzyme (without stickers) foam piece. With the help of the enzyme it takes less energy to pull the pieces apart. The activation energy has been lowered! Notice in the graph below that the resulting products have less free energy than the reactants. In such a boo reaction, energy has been released and the reaction is said to be exothermic. A specific example of an exothermic reaction is the breakdown of hydrogen peroxide into hydrogen and oxygen. The enzyme used to facilitate this reaction is known as catalase. Free Energy (G) Energy of reactants 2H₂O₂ → 2H₂O + 0₂ Activation energy (E) with enzymes sino and wa Progress of Reaction Change ou in free doigsb 18 energy (AG) Energy of products
Transcribed Image Text:BIOL 150. Enzymes Activity 7. Activation Energy Activation energy may be defined as the minimum amount of energy required to get the reactants in a chemical reaction to the transition state, in which bonds are broken and new bonds are formed. The activation energy of a reaction is usually denoted by E. By now you know that enzymes are proteins that catalyze chemical reactions. Enzymes lower the activation energy needed to start a reaction. Name: You may use the foam pieces to simulate the activation energy needed in a reaction with and without an enzyme. Begin by connecting the green foam pieces. To illustrate the activation energy without the enzyme interaction, pull the apart the two green pieces with your hands. Reconnect the green pieces. This time lock them into the active site on the gray A enzyme (without stickers) foam piece. With the help of the enzyme it takes less energy to pull the pieces apart. The activation energy has been lowered! Notice in the graph below that the resulting products have less free energy than the reactants. In such a boo reaction, energy has been released and the reaction is said to be exothermic. A specific example of an exothermic reaction is the breakdown of hydrogen peroxide into hydrogen and oxygen. The enzyme used to facilitate this reaction is known as catalase. Free Energy (G) Energy of reactants 2H₂O₂ → 2H₂O + 0₂ Activation energy (E) with enzymes sino and wa Progress of Reaction Change ou in free doigsb 18 energy (AG) Energy of products
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