Unit at a Glance
Unit 2. The Chemistry of Life (12 days)
• Chapters1, 2, 3, 4, 5, 6 or 8
1.d.1 There are several hypotheses about the natural origin of life on Earth, each with
supporting scientific evidence.
2.a.1 All living systems require constant input of free energy.
2.a.3 Organisms must exchange matter with the environment to grow, reproduce, and
4.A.1: The subcomponents of biological molecules and their sequence determine the
properties of that molecule.
4.B.1: Interactions between molecules affect their structure and function.
4.C.1: Variation in molecular units provides cells with a wider range of functions.
• Macromolecules: Building Macromolecules
Enzymes: Effect of Temperature, pH, Enzyme Concentration, and Substrate
Concentration on Enzyme Activity [C8] [C4]from Helms
o Goal: To determine the effect of temperature, pH, enyzyme concentration,
and substrate concentration on the activity of catecholase (wet lab)
Equations and Formulas
• Gibbs Free Energy
Traditional test using a free response essay question and numerous multiple choice
Topics addressed in Past AP Exams
Chapter 1 Exploring Life
Chapter 2 The Chemical Context of Life
Van der Waals
Chapter 3: Water and Fitness of the Environment
Properties of water as they relate to biological events
Chapter 4: Carbon and the Molecular Diversity of Life
Chapter 5: Structure and Function of Macromolecules
Monomers vs. polymers
Dehydration synthesis vs. hydrolysis
Level of Proteins structure
Chapter 6/8: Metabolism
Anabolic vs. catabolic reactions
Endergonic vs. exergonic reactions
Regulation of enzymes