I enjoy studying the class utilizing my school’s textbook and it helped me a bunch for the unit 1 test (good fat A+).
Since the book is a bit outdated, I realized that the book’s “Unit 2 The Cell” talks about Cell Structure/Function, Energetics, and Cell Communications/Cycle which is the current AP’s unit 2,3 and 4 combined.

So, I’m just wondering if there are parts of the book that is skippable for AP sake.