AP Biology Unit 2 Test Prep BundleLessons • MCQs • FRQs • Worksheets • AssessmentUpdated for the 2025 AP Biology Course and Exam Description, this resource includes a video lesson and specialized practice to help AP Biology students learn, study, and confidently review Unit 2: Cells, covering cell structure and function, cell size, plasma membranes, membrane permeability and transport, facilitated diffusion, tonicity and osmoregulation, mechanisms of transport, and cell compartmentalization.From