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Unit 1 - Chemistry of Life
Unit 2 - Cell Structure and Function
Unit 3 - Cellular Energetics
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Unit 4 - Cell Communication and Cell Cycle
Unit 5 - Heredity
Unit 6 - Gene Expression and Regulation
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🧬ap biology review

Unit 4 - Cell Communication and Cell Cycle

Verified for the 2025 AP Biology exam•Last Updated on May 9, 2020

Caroline Koffke

Caroline Koffke

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In this session, Caroline reviews cell communication, signal transduction pathways, positive and negative feedback mechanisms, and the regulation of the cell cycle.

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Resources
Cram ModeAP Score CalculatorsStudy GuidesPractice QuizzesGlossaryCrisis Text LineRequest a Feature
© 2025 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
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Unit 5 - Heredity