Biology • Biomolecules
Dehydration Synthesis
Compare the reactants before and after the reaction. Identify the highlighted functional groups, follow the atoms removed as water, and locate the new covalent bond.
Glucose + Glucose → DisaccharideBefore reaction
Before → after comparison
+
→
Water appears
after reaction
after reaction
+
Highlighted reaction group / new bond Oxygen (O) Nitrogen (N) Carbon (C)
01Identify the reactants
02Track the atoms
03Compare the product
Reactants2
Main product1 joined molecule
Water producedNot yet formed
New bondNot yet formed
Before reaction: Compare both reactants. Find the highlighted functional groups and predict which atoms will be removed to make water.