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Biology 1060 Chapter 8

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Biology 1060 Chapter 8 Introduction to Metabolism Metabolism List the kinds of chemical reactions occurring in cells and organisms Define metabolism and discuss how ... – PowerPoint PPT presentation

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Title: Biology 1060 Chapter 8


1
Biology 1060Chapter 8
  • Introduction to Metabolism

2
Metabolism
  • List the kinds of chemical reactions occurring in
    cells and organisms
  • Define metabolism and discuss how it is organized
  • Differentiate between catabolic and anabolic
    pathways
  • Give an example of each

3
Energy
  • Define energy and differentiate between kinetic
    and potential energy
  • Give examples of each
  • State the first law of thermodynamics
  • Describe its meaning
  • State the second law of thermodynamics
  • Describe its meaning using the term entropy
  • Apply these laws to cells and organisms

4
Free Energy
  • Define free energy
  • Discuss the equation allowing its calculation
  • Relate ? G to spontaneous reactions
  • Discuss chemical equilibrium using the concept of
    free energy

5
Exergonic and Endergonic
  • Define and describe endergonic and exergonic
    reactions
  • Discuss metabolism
  • Explain why a cells metabolism never reaches
    equilibrium

6
ATP
  • Describe the three types of work performed by the
    cell
  • Define energy coupling
  • Describe the role of ATP in the cell
  • Define phosphorylation
  • Describe how ATP transfers energy
  • Describe the ATP cycle

7
Activation Energy
  • Define activation energy
  • Describe its importance in chemical reactions
  • Describe how enzymes function in the cell
  • Explain why this is a more appropriate mechanism
    than other ways to lower the activation energy
    barrier

8
Enzyme Specificity
  • Describe how an enzyme functions as a catalyst
  • Describe the changes in the substrate and enzyme
    as products form
  • Discuss the active site and reversible reactions
    catalyzed by an enzyme

9
Enzyme Action
  • Discuss how an enzyme helps the reaction proceed
  • Name the factors that determine the rate of a
    reaction
  • describe the effect of each
  • Discuss the ways in which chemicals may inhibit
    an enzyme

10
Control of Metabolism
  • Define and describe allosteric regulation
  • Define and describe feedback inhibition
  • Discuss how the cell optimizes enzyme action

11
Questions p. 159
  • Evolution Connection
  • Scientific Inquiry
  • Science, Technology, and Society
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