Tian2 田二
Library AP Biology Unit 1: Chemistry of Life
⁂   AP Biology · Unit 1

1. Chemistry of Life

8–11% of the AP exam. Key topics: Elements essential for carbon-based life, Properties of water: cohesion, adhesion, specific heat, polarity, hydrogen bonding, Biological macromolecules: carbohydrates, lipids, proteins, nucleic acids — structure and function, Enzyme structure: active site, substrate specificity, activation energy, Factors affecting enzyme activity: temperature, pH, substrate concentration, inhibitors, Free energy and thermodynamics: Gibbs free energy (ΔG), endergonic vs. exergonic reactions, ATP as biological energy currency.

6 instructional periods 8–11% exam weight standard track

Unit 1: Chemistry of Life

Study guide content for this unit is being prepared. Check back soon for complete lesson notes, formula sheets, and worked examples.

Topics in this unit

  • Elements essential for carbon-based life
  • Properties of water: cohesion, adhesion, specific heat, polarity, hydrogen bonding
  • Biological macromolecules: carbohydrates, lipids, proteins, nucleic acids — structure and function
  • Enzyme structure: active site, substrate specificity, activation energy
  • Factors affecting enzyme activity: temperature, pH, substrate concentration, inhibitors
  • Free energy and thermodynamics: Gibbs free energy (ΔG), endergonic vs. exergonic reactions
  • ATP as biological energy currency