During photosynthesis, chlorophylls absorb energy from light, boosting electrons to a higher energy level in photosystems I and II. Water then splits, supplying electrons to replace those lost from photosystem II.
Standard detail
3.4.B.2
Depth 3Parent ID: 9A14C4D1E4F54E13B7A8C76314327990Standard set: AP Biology (2025)
Original statement
Quick facts
- Statement code
- 3.4.B.2
- List ID
- 2
- Standard ID
- 6C495C0DA0C54028828B5299F6892F09
- Subject
- AP Biology
- Grades
- 09, 10, 11, 12
- Ancestor IDs
- 9A14C4D1E4F54E13B7A8C76314327990357F1F99485044F1893BDA7791EE3C49E8EE8244CBC242BFB4FBCC87127919A7
- Source document
- AP® Biology COURSE AND EXAM DESCRIPTION Effective Fall 2025
- License
- CC BY 4.0 US