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๐ŸงฌAP Biology Review

QR code for AP Biology practice questions

Photosynthesis

๐ŸงฌAP Biology
Review

Photosynthesis

Written by the Fiveable Content Team โ€ข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโ€ขWritten by the Fiveable Content Team โ€ข Last updated September 2025

Resources

In this session, we cover photosynthesis. We begin by discussing the purpose of photosynthesis (converting light into usable, chemical energy). We cover the two major steps of photosynthesis (by discussing light reactions and the Calvin cycle). We understand the multi-step process of light reactions (chloroplast stroma and thylakoid lumen). We discuss what goes in and what comes out with light reactions, and we discuss what goes in and what comes out with the Calvin cycle. We give an overview of the entire process, before ending with multiple choice practice (in a lab set up).