Signaling begins with the recognition of a chemical messenger—a ligand—by a receptor protein in a target cell.
Standard detail
4.2.B.1
Depth 3Parent ID: 9CB0890A66454EFFB27509D52BE2354AStandard set: AP Biology (2025)
Original statement
Quick facts
- Statement code
- 4.2.B.1
- List ID
- 1
- Standard ID
- BB7B4BECE12B47959B63BAB8C97190EB
- Subject
- AP Biology
- Grades
- 09, 10, 11, 12
- Ancestor IDs
- 9CB0890A66454EFFB27509D52BE2354A9CC258102D414B99886ACA2D9DA1804921AB51D3A50F4C7D833823E3FA1F4EDA
- Source document
- AP® Biology COURSE AND EXAM DESCRIPTION Effective Fall 2025
- License
- CC BY 4.0 US