Let's Review the Unit 4 of AP BIOLOGY in 20 minutes!

Hey everyone! This is Mikey from Aevo Prep Academy—and in this video, we’re reviewing AP Biology Unit 4, which covers Cell Communication and the Cell Cycle—two of the most conceptually rich yet high-yield topics on the AP Bio exam. We’ll break it down step-by-step: Cell Communication: signal transduction pathways, G-protein coupled receptors, phosphorylation cascades, and feedback mechanisms. Cell Cycle: Interphase, mitosis, cyclins, CDKs, checkpoints, and how cells regulate division. By the end of this review, you’ll understand not just what happens in these processes, but why they matter to homeostasis and multicellular coordination. Perfect for last-minute exam prep, unit tests, or anyone who wants to truly understand the logic behind cellular regulation. Subscribe for more AP Biology crash courses, FRQ walkthroughs, and practice sessions:    / @aevoprepacademy   Cell Cycle:    • AP Biology: Chapter 12 - Cell Cycle REGULA...   #apbio #apbiology #biology #ibbiology #science #collegebard