🧬ap biology review

Phosphate Group

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

A phosphate group is a molecule in the chemical form PO4 that is part of many important biological structures such as DNA, RNA, ATP (adenosine triphosphate), and phospholipids.