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Biochemistry
SECTION 1: ACTIVATION ENERGY The picture to the right shows someone trying to push a boulder up a hill. In order for the boulder to reach its final destination at point B, it must be pushed to the top of the hill because once it reaches the top of the hill it will roll down the rest of the way. A similar scenario exists in chemistry, before a chemical reaction will take place, energy must be put into the system. The energy needed for a chemical reaction to move from point A to the top of the hill is known as activation energy, also written as Ea. Increasing Energy Activation Energy Activation Energy Energy Content of Reactants A + B Reactants FIGURE 3 Progress of Reaction FIGURE 2 Uncatalyzed Reaction (without enzyme) J Catalyzed Reaction (with enzyme) Energy Content of Products C + D Products (TIME) 3. Compare Figure 3 above to the Figure 1 (comparing the heights of 2 mountains), determine how using an enzyme in a chemical reaction impacts the reaction by answering these questions. As seen in the graph a. Does it speed up or slow down the reaction? b. What does the enzyme do to activation energy? c. Based on your answers to questions a and b, what do you think the term "catalyzed" means?

SECTION 1: ACTIVATION ENERGY The picture to the right shows someone trying to push a boulder up a hill. In order for the boulder to reach its final destination at point B, it must be pushed to the top of the hill because once it reaches the top of the hill it will roll down the rest of the way. A similar scenario exists in chemistry, before a chemical reaction will take place, energy must be put into the system. The energy needed for a chemical reaction to move from point A to the top of the hill is known as activation energy, also written as Ea. Increasing Energy Activation Energy Activation Energy Energy Content of Reactants A + B Reactants FIGURE 3 Progress of Reaction FIGURE 2 Uncatalyzed Reaction (without enzyme) J Catalyzed Reaction (with enzyme) Energy Content of Products C + D Products (TIME) 3. Compare Figure 3 above to the Figure 1 (comparing the heights of 2 mountains), determine how using an enzyme in a chemical reaction impacts the reaction by answering these questions. As seen in the graph a. Does it speed up or slow down the reaction? b. What does the enzyme do to activation energy? c. Based on your answers to questions a and b, what do you think the term "catalyzed" means?

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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SECTION 1: ACTIVATION ENERGY The picture to the right shows someone trying to push a boulder up a hill. In order for the boulder to reach its final destination at point B, it must be pushed to the top of the hill because once it reaches the top of the hill it will roll down the rest of the way. A similar scenario exists in chemistry, before a chemical reaction will take place, energy must be put into the system. The energy needed for a chemical reaction to move from point A to the top of the hill is known as activation energy, also written as Ea. Increasing Energy. Activation Energy Activation Energy Energy Content of Reactants A + B Reactants FIGURE 3 J Progress of Reaction t $ Uncatalyzed Reaction (without enzyme) Energy Content of Products V FIGURE 2 Catalyzed Reaction (with enzyme) C + D Products A 1₁² م اسکات (TIME) 3. Compare Figure 3 above to the Figure 1 (comparing the heights of 2 mountains), determine how using an enzyme in a chemical reaction impacts the reaction by answering these questions. As seen in the graph a. Does it speed up or slow down the reaction? b. What does the enzyme do to activation energy? c. Based on your answers to questions a and b, what do you think the term "catalyzed" means?
Transcribed Image Text:SECTION 1: ACTIVATION ENERGY The picture to the right shows someone trying to push a boulder up a hill. In order for the boulder to reach its final destination at point B, it must be pushed to the top of the hill because once it reaches the top of the hill it will roll down the rest of the way. A similar scenario exists in chemistry, before a chemical reaction will take place, energy must be put into the system. The energy needed for a chemical reaction to move from point A to the top of the hill is known as activation energy, also written as Ea. Increasing Energy. Activation Energy Activation Energy Energy Content of Reactants A + B Reactants FIGURE 3 J Progress of Reaction t $ Uncatalyzed Reaction (without enzyme) Energy Content of Products V FIGURE 2 Catalyzed Reaction (with enzyme) C + D Products A 1₁² م اسکات (TIME) 3. Compare Figure 3 above to the Figure 1 (comparing the heights of 2 mountains), determine how using an enzyme in a chemical reaction impacts the reaction by answering these questions. As seen in the graph a. Does it speed up or slow down the reaction? b. What does the enzyme do to activation energy? c. Based on your answers to questions a and b, what do you think the term "catalyzed" means?
Enzyme Structure & Function FIGURE 1 A. 650 m B. 1400 m INTRODUCTORY QUESTIONS 1. If you're going hiking this weekend and you have the option of hiking a mountain that is 1400 meters in height and a mountain that is 650 meters in height, BUT you know that you have limited time because of other plans - which mountain would you choose to hike, A or B? EXPLAIN WHY. 2. If you're hiking at the same pace, which of these mountains would require MORE energy to hike up (A or B)? Explain.
Transcribed Image Text:Enzyme Structure & Function FIGURE 1 A. 650 m B. 1400 m INTRODUCTORY QUESTIONS 1. If you're going hiking this weekend and you have the option of hiking a mountain that is 1400 meters in height and a mountain that is 650 meters in height, BUT you know that you have limited time because of other plans - which mountain would you choose to hike, A or B? EXPLAIN WHY. 2. If you're hiking at the same pace, which of these mountains would require MORE energy to hike up (A or B)? Explain.
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