AP®︎ Biology Unit 4: Notes & Study Guide
Prepare for your quiz, test, or the AP exam with a comprehensive review on Unit 4 of AP Biology – Cell Communication and Cell Cycle.
Unit 4: Cell Communication and Cell Cycle
How cells send and receive signals, how the cell cycle is regulated, and what goes wrong in diseases like cancer.
Begin with Topic 4.1: Cell CommunicationTo review Unit 4, go through each of the 6 topics below.
Everything you actually need to know for your Unit 4 test, pulled directly from the AP® Biology curriculum.
Cell Communication
Cell Communication
- What Cell Communication Is
- The Three Main Ways Cells Communicate
- How Distance Affects Speed and Specificity
Introduction to Signal Transduction
Introduction to Signal Transduction
- Signal Transduction Pathways
- Components of a Signal Transduction Pathway
- Amplification and Specific Responses
Signal Transduction Pathways
Signal Transduction Pathways
- What Signal Transduction Is
- The Three Stages of a Signaling Pathway
- Types of Cellular Responses
Feedback
Feedback
- What Feedback Does in Homeostasis
- The Two Types of Feedback
- Blood Glucose Regulation by Insulin and Glucagon
Cell Cycle
Cell Cycle
- The Cell Cycle
- The Stages of the Cell Cycle
- G0 and Cell Cycle Regulation
Regulation of Cell Cycle
Regulation of Cell Cycle
- The Cell Cycle and Why It Must Be Controlled
- The Three Major Cell Cycle Checkpoints
- How Cyclins and CDKs Control the Cell Cycle
Notes
1 credit used · 5/5 remaining