In the biosynthetic pathway of carotenoids and chlorophyll, small five-carbon units are polymerized. What is the name of these repeating building blocks?
Q1. In the biosynthetic pathway of carotenoids and chlorophyll, small five-carbon units are polymerized. What is the name of these repeating building blocks?
Answer: Isoprenoid units
Explanation: Terpenoids like carotenoids are built from repeating 5-carbon isoprenoid units. Acetyl groups are precursors but not the direct repeating unit.