Chapter 8 An Introduction to Metabolism Lecture Presentations Quiz
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Questions and Answers

Which type of reaction proceeds with a net release of free energy and is spontaneous?

  • Catabolic reaction
  • Anabolic reaction
  • Exergonic reaction (correct)
  • Endergonic reaction

In the context of bioenergetics, what is the study of how organisms manage their energy resources called?

  • Biochemistry
  • Ecology
  • Bioenergetics (correct)
  • Thermodynamics

How is ATP (adenosine triphosphate) composed?

  • Deoxyribose, guanine, and three phosphate groups
  • Ribose, adenine, and two phosphate groups
  • Ribose, thymine, and three phosphate groups
  • Ribose, adenine, and three phosphate groups (correct)

What type of pathways release energy by breaking down complex molecules into simpler compounds?

<p>Catabolic pathways (D)</p> Signup and view all the answers

Which type of cellular work is powered by the hydrolysis of ATP?

<p>Chemical work (D)</p> Signup and view all the answers

What is metabolism?

<p>The totality of an organism's chemical reactions (A)</p> Signup and view all the answers

In the context of metabolism, what is an emergent property of life?

<p>The totality of an organism's chemical reactions (B)</p> Signup and view all the answers

What is a metabolic pathway?

<p>A series of chemical reactions catalyzed by specific enzymes (D)</p> Signup and view all the answers

What role do enzymes play in metabolic pathways?

<p>Catalyzing specific steps in the pathway (C)</p> Signup and view all the answers

How does the living cell utilize energy obtained through metabolism?

<p>To perform work and carry out cellular functions (A)</p> Signup and view all the answers

In the context of metabolism, what is the role of enzymes in metabolic pathways?

<p>Enzymes catalyze each step of the metabolic pathway (D)</p> Signup and view all the answers

What is the purpose of a metabolic pathway in an organism?

<p>To break down complex molecules into simpler compounds (C)</p> Signup and view all the answers

Which type of reaction is typically involved in a metabolic pathway?

<p>Exothermic reaction (C)</p> Signup and view all the answers

What is the primary function of ATP (adenosine triphosphate) in cellular metabolism?

<p>To provide energy for anabolic pathways (D)</p> Signup and view all the answers

How does an organism's metabolism relate to the laws of thermodynamics?

<p>Metabolism adheres to the second law of thermodynamics by decreasing entropy (D)</p> Signup and view all the answers

In the context of bioenergetics, which type of reaction absorbs free energy from its surroundings and is nonspontaneous?

<p>Endergonic reaction (A)</p> Signup and view all the answers

What is the role of ATP in cellular work?

<p>It provides energy for cellular work (B)</p> Signup and view all the answers

What is an emergent property of life in the context of metabolism?

<p>Energy storage in ATP (B)</p> Signup and view all the answers

What is the study of how organisms manage their energy resources called?

<p>Bioenergetics (D)</p> Signup and view all the answers

Which type of pathways release energy by breaking down complex molecules into simpler compounds?

<p>Catabolic pathways (C)</p> Signup and view all the answers

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