Study Guide 4-2

Lecture 4.2 Competencies and Study Guide

Introduction to Metabolism

Vocabulary

  • Entropy
  • Free energy
  • Enthalpy
  • Endergoinc
  • Exergonic

Competencies

  1. State the first and second laws of thermodynamics.
  2. Define work and energy.
  3. Describe potential and kinetic energy.
  4. Define entropy and Gibbs free energy.
  5. Explain the relationship between enthalpy, Gibbs free energy and entropy.
  6. Compare and contrast exergonic and endergonic reactions, including their ΔG and spontaneity.
  7. Describe the main endergonic and exergonic reactions involving ATP.
  8. State the ΔG of the ATP→ADP reaction.
  9. Explain why life and evolution do not violate the second law of thermodynamics.
  10. Explain, using the concept of coupled chemical reactions, how the amino acid glutamine is made even though its construction from glutamic acid and ammonia has a positive ΔG.