Which of the following is True? a. Enzymes increase activation energy requirements. b. Activation energy is required to initiate exergonic reactions. c. Heat cannot supply activation energy. d. Stomach acid inactivates pepsin.

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 6, Problem 1MC

Which of the following is True?

a. Enzymes increase activation energy requirements.

b. Activation energy is required to initiate exergonic reactions.

c. Heat cannot supply activation energy.

d. Stomach acid inactivates pepsin.

Expert Solution & Answer

Summary Introduction

Introduction:

Enzymes are mostly proteins that catalyze a reaction. Some reactions require a lot of energy input. These are called as endergonic reactions. The reactions that release energy are called as exergonic.

Answer to Problem 1MC

Correct answer:

Activation energy initiates reactions that are exergonic.

Explanation of Solution

Explanation for the correct answer:

Option (b) is given that to initiate an exergonic reaction, activation energy is required. This is true as activation energy refers to that minimum energy, which is necessary to carry a reaction even in the case of those that release energy at the end of the process. Hence, option (b) is correct.

Explanation for incorrect answers:

Option (a) is given that enzymes promote the need for higher activation energy. This statement is incorrect as enzymes work by lowering the activation energy and not the other way round. So, it is an incorrect option.

Option (c) is given that heat does not aid as activation energy. This is incorrect as heat increases the temperature; as a result, the reactant molecules involved collide faster and thus react quickly. So, it is an incorrect option.

Option (d) is given that pepsin is inactivated by the acid in the stomach. This is false as pepsin is the activated form. The inactive form, which is pepsinogen, is activated by hydrochloric acid that is released by the cells of the stomach. So, it is an incorrect option.

Hence, options, (a), (c), and (d) are incorrect.

Conclusion

Thus, it can be concluded that all reactions require activation energy be it exergonic or endergonic. It is whether these reactions release energy at the end determines their type.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

Normal dive (for diving humans) normal breathing dive normal breathing Oz level CO2 level urgent need to breathe Oz blackout zone high CO2 triggers breathing 6. This diagram shows rates of oxygen depletion and carbon dioxide accumulation in the blood in relation to the levels needed to maintain consciousness and trigger the urgent need to breathe in diving humans. How might the location and slope of the O₂ line differ for diving marine mammals such as whales and dolphins? • How might the location and slope of the CO₂ line differ for diving marine mammals such as whales and dolphins? • • Draw in predicted lines for O2 and CO2, based on your reasoning above. How might the location of the Urgent Need to Breathe line and the O2 Blackout Zone line differ for diving marine mammals? What physiological mechanisms account for each of these differences, resulting in the ability of marine mammals to stay submerged for long periods of time?

foraging/diet type teeth tongue stomach intestines cecum Insectivory numerous, spiky, incisors procumbentExample: moleExample: shrew -- simple short mostly lacking Myrmecophagy absent or reduced in numbers, peg-likeExample: tamandua anteater extremely long simple, often roughened short small or lacking Terrestrial carnivory sharp incisors; long, conical canines; often carnassial cheek teeth; may have crushing molarsExample: dog -- simple short small Aquatic carnivory homodont, spiky, numerousExample: common dolphin -- simple or multichambered (cetaceans only) variable small or absent Sanguinivory very sharp upper incisors; reduced cheek teethExample: vampire bat grooved tubular, highly extensible long small or lacking Herbivory (except nectivores) incisors robust or absent; canines reduced or absent; diastema; cheek teeth enlarged with complex occlusal surfacesExample: beaver -- simple (hindgut fermenters) or multichambered (ruminants) long large Filter feeding none…

3. Shown below is the dental formula and digestive tract anatomy of three mammalian species (A, B, and C). What kind of diet would you expect each species to have? Support your answers with what you can infer from the dental formula and what you can see in the diagram. Broadly speaking, what accounts for the differences? Species A 3/3, 1/1, 4/4, 3/3 པར『ན་ cm 30 Species B 4/3, 1/1, 2/2, 4/4 cm 10 Species C 0/4, 0/0,3/3, 3/3 020

Answer 2

Textbook Question

Chapter 6, Problem 1MC

Which of the following is True?

a. Enzymes increase activation energy requirements.

b. Activation energy is required to initiate exergonic reactions.

c. Heat cannot supply activation energy.

d. Stomach acid inactivates pepsin.

Expert Solution & Answer

Summary Introduction

Introduction:

Enzymes are mostly proteins that catalyze a reaction. Some reactions require a lot of energy input. These are called as endergonic reactions. The reactions that release energy are called as exergonic.

Answer to Problem 1MC

Correct answer:

Activation energy initiates reactions that are exergonic.

Explanation of Solution

Explanation for the correct answer:

Option (b) is given that to initiate an exergonic reaction, activation energy is required. This is true as activation energy refers to that minimum energy, which is necessary to carry a reaction even in the case of those that release energy at the end of the process. Hence, option (b) is correct.

Explanation for incorrect answers:

Option (a) is given that enzymes promote the need for higher activation energy. This statement is incorrect as enzymes work by lowering the activation energy and not the other way round. So, it is an incorrect option.

Option (c) is given that heat does not aid as activation energy. This is incorrect as heat increases the temperature; as a result, the reactant molecules involved collide faster and thus react quickly. So, it is an incorrect option.

Option (d) is given that pepsin is inactivated by the acid in the stomach. This is false as pepsin is the activated form. The inactive form, which is pepsinogen, is activated by hydrochloric acid that is released by the cells of the stomach. So, it is an incorrect option.

Hence, options, (a), (c), and (d) are incorrect.

Conclusion

Thus, it can be concluded that all reactions require activation energy be it exergonic or endergonic. It is whether these reactions release energy at the end determines their type.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Textbook Question

Chapter 6, Problem 1MC

Which of the following is True?

a. Enzymes increase activation energy requirements.

b. Activation energy is required to initiate exergonic reactions.

c. Heat cannot supply activation energy.

d. Stomach acid inactivates pepsin.

Expert Solution & Answer

Summary Introduction

Introduction:

Enzymes are mostly proteins that catalyze a reaction. Some reactions require a lot of energy input. These are called as endergonic reactions. The reactions that release energy are called as exergonic.

Answer to Problem 1MC

Correct answer:

Activation energy initiates reactions that are exergonic.

Explanation of Solution

Explanation for the correct answer:

Option (b) is given that to initiate an exergonic reaction, activation energy is required. This is true as activation energy refers to that minimum energy, which is necessary to carry a reaction even in the case of those that release energy at the end of the process. Hence, option (b) is correct.

Explanation for incorrect answers:

Option (a) is given that enzymes promote the need for higher activation energy. This statement is incorrect as enzymes work by lowering the activation energy and not the other way round. So, it is an incorrect option.

Option (c) is given that heat does not aid as activation energy. This is incorrect as heat increases the temperature; as a result, the reactant molecules involved collide faster and thus react quickly. So, it is an incorrect option.

Option (d) is given that pepsin is inactivated by the acid in the stomach. This is false as pepsin is the activated form. The inactive form, which is pepsinogen, is activated by hydrochloric acid that is released by the cells of the stomach. So, it is an incorrect option.

Hence, options, (a), (c), and (d) are incorrect.

Conclusion

Thus, it can be concluded that all reactions require activation energy be it exergonic or endergonic. It is whether these reactions release energy at the end determines their type.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

Chapter 6, Problem 1MC

Which of the following is True?

a. Enzymes increase activation energy requirements.

b. Activation energy is required to initiate exergonic reactions.

c. Heat cannot supply activation energy.

d. Stomach acid inactivates pepsin.

Expert Solution & Answer

Summary Introduction

Introduction:

Enzymes are mostly proteins that catalyze a reaction. Some reactions require a lot of energy input. These are called as endergonic reactions. The reactions that release energy are called as exergonic.

Answer to Problem 1MC

Correct answer:

Activation energy initiates reactions that are exergonic.

Explanation of Solution

Explanation for the correct answer:

Option (b) is given that to initiate an exergonic reaction, activation energy is required. This is true as activation energy refers to that minimum energy, which is necessary to carry a reaction even in the case of those that release energy at the end of the process. Hence, option (b) is correct.

Explanation for incorrect answers:

Option (a) is given that enzymes promote the need for higher activation energy. This statement is incorrect as enzymes work by lowering the activation energy and not the other way round. So, it is an incorrect option.

Option (c) is given that heat does not aid as activation energy. This is incorrect as heat increases the temperature; as a result, the reactant molecules involved collide faster and thus react quickly. So, it is an incorrect option.

Option (d) is given that pepsin is inactivated by the acid in the stomach. This is false as pepsin is the activated form. The inactive form, which is pepsinogen, is activated by hydrochloric acid that is released by the cells of the stomach. So, it is an incorrect option.

Hence, options, (a), (c), and (d) are incorrect.

Conclusion

Thus, it can be concluded that all reactions require activation energy be it exergonic or endergonic. It is whether these reactions release energy at the end determines their type.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

Introduction:

Enzymes are mostly proteins that catalyze a reaction. Some reactions require a lot of energy input. These are called as endergonic reactions. The reactions that release energy are called as exergonic.

Answer to Problem 1MC

Correct answer:

Activation energy initiates reactions that are exergonic.

Explanation of Solution

Explanation for the correct answer:

Option (b) is given that to initiate an exergonic reaction, activation energy is required. This is true as activation energy refers to that minimum energy, which is necessary to carry a reaction even in the case of those that release energy at the end of the process. Hence, option (b) is correct.

Explanation for incorrect answers:

Option (a) is given that enzymes promote the need for higher activation energy. This statement is incorrect as enzymes work by lowering the activation energy and not the other way round. So, it is an incorrect option.

Option (c) is given that heat does not aid as activation energy. This is incorrect as heat increases the temperature; as a result, the reactant molecules involved collide faster and thus react quickly. So, it is an incorrect option.

Option (d) is given that pepsin is inactivated by the acid in the stomach. This is false as pepsin is the activated form. The inactive form, which is pepsinogen, is activated by hydrochloric acid that is released by the cells of the stomach. So, it is an incorrect option.

Hence, options, (a), (c), and (d) are incorrect.

Conclusion

Thus, it can be concluded that all reactions require activation energy be it exergonic or endergonic. It is whether these reactions release energy at the end determines their type.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

Enzymes are mostly proteins that catalyze a reaction. Some reactions require a lot of energy input. These are called as endergonic reactions. The reactions that release energy are called as exergonic.

Answer to Problem 1MC

Correct answer:

Activation energy initiates reactions that are exergonic.

Explanation of Solution

Explanation for the correct answer:

Option (b) is given that to initiate an exergonic reaction, activation energy is required. This is true as activation energy refers to that minimum energy, which is necessary to carry a reaction even in the case of those that release energy at the end of the process. Hence, option (b) is correct.

Explanation for incorrect answers:

Option (a) is given that enzymes promote the need for higher activation energy. This statement is incorrect as enzymes work by lowering the activation energy and not the other way round. So, it is an incorrect option.

Option (c) is given that heat does not aid as activation energy. This is incorrect as heat increases the temperature; as a result, the reactant molecules involved collide faster and thus react quickly. So, it is an incorrect option.

Option (d) is given that pepsin is inactivated by the acid in the stomach. This is false as pepsin is the activated form. The inactive form, which is pepsinogen, is activated by hydrochloric acid that is released by the cells of the stomach. So, it is an incorrect option.

Hence, options, (a), (c), and (d) are incorrect.

Conclusion

Thus, it can be concluded that all reactions require activation energy be it exergonic or endergonic. It is whether these reactions release energy at the end determines their type.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

Enzymes are mostly proteins that catalyze a reaction. Some reactions require a lot of energy input. These are called as endergonic reactions. The reactions that release energy are called as exergonic.

Answer 12

Answer to Problem 1MC

Correct answer:

Activation energy initiates reactions that are exergonic.

Answer 13

Explanation of Solution

Explanation for the correct answer:

Option (b) is given that to initiate an exergonic reaction, activation energy is required. This is true as activation energy refers to that minimum energy, which is necessary to carry a reaction even in the case of those that release energy at the end of the process. Hence, option (b) is correct.

Explanation for incorrect answers:

Option (a) is given that enzymes promote the need for higher activation energy. This statement is incorrect as enzymes work by lowering the activation energy and not the other way round. So, it is an incorrect option.

Option (c) is given that heat does not aid as activation energy. This is incorrect as heat increases the temperature; as a result, the reactant molecules involved collide faster and thus react quickly. So, it is an incorrect option.

Option (d) is given that pepsin is inactivated by the acid in the stomach. This is false as pepsin is the activated form. The inactive form, which is pepsinogen, is activated by hydrochloric acid that is released by the cells of the stomach. So, it is an incorrect option.

Hence, options, (a), (c), and (d) are incorrect.

Answer 14

Conclusion

Thus, it can be concluded that all reactions require activation energy be it exergonic or endergonic. It is whether these reactions release energy at the end determines their type.

Answer 15

Ch. 6 - Which of the following is True? a. Enzymes...Ch. 6 - 2. Which is not an example of an exergonic...Ch. 6 - Which of the following is True? ATP is a long-term...Ch. 6 - Prob. 4MC Ch. 6 - Which of the following is False? a. Allosteric...Ch. 6 - 1. According to the first law of thermodynamics,...Ch. 6 - Prob. 2FTB Ch. 6 - Prob. 3FTB Ch. 6 - The abbreviation ATP stands for ___. The molecule...Ch. 6 - 5. Enzymes are what type of biological molecule?...

Which of the following is True? a. Enzymes increase activation energy requirements. b. Activation energy is required to initiate exergonic reactions. c. Heat cannot supply activation energy. d. Stomach acid inactivates pepsin.

Videos

Answer to Problem 1MC

Explanation of Solution

Want to see more full solutions like this?

Chapter 6 Solutions