AP Bio Midterm Review

Format:

• 20 FRQs

• 2 MCQs

Unit 1: Chemistry of Life 🧪

• Structure of water: Hydrogen bonding and polar covalent bonds

Properties

• Cohesion: water molecules stick to each other

• Adhesion: negative charges are binding to positive

• Surface Tension: allows liquid to resist on external force → water is the universal solvent

• Heat of Vaporization: the amount of heat required to convert a liquid to a gas

• Hydrophobic: water-fearing

• Hydrophilic: water-loving

• Water can act as both an acid and a base

Backbone of Life

• Oxygen, hydrogen, and carbon

• ATP: Adenosine Triphosphate: needed for energy

Hypotheses

• Alternative Hypothesis: there is an effect or relationship between variables in an experiment → Ex: vinegar/baking soda (acid/base), temperature (light), medication (drug sensitivity)

• Null Hypothesis: a defaul assumption where there is no relationship between things