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AP Biology: Chemistry of Life

~8%–11% of multiple-choice exam weight

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Students often underestimate Chemistry of Life because it appears early in the syllabus, but AP questions here test application, not memorized definitions alone.

Biochemical foundations: water properties, macromolecules, and chemical reactions vital to living systems. Expect questions involving Properties of water, pH, buffers; Structure and function of macromolecules: carbohydrates, lipids, proteins, nucleic acids; Basic energetics of biochemical reactions.

Mix MCQ practice with sketching diagrams or timelines from memory. AP Biology rewards recall under time pressure, not just recognition.

Select Generate above to pull a fresh MCQ for this unit. You can still switch subjects or units if you want to compare topics side by side.