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🧬ap biology review

Ligand in AP Biology

Written by the Fiveable Content Team
Verified for the 2027 exam
Verified for the 2027 exam•Written by the Fiveable Content Team

Definition

A ligand is a molecule that binds to another (usually larger) molecule. In cell communication, it's often the signal molecule that binds to a receptor.

AP course connection

Topic 4.4: 4.4 Feedback

Unit 4