Question

A condensation reaction joins two molecules with a release of a molecule of:

• A. ATP
• B. Water
• C. Hydrogen
• D. NAD

Answer 1

The correct option is B Water

Condensation reaction joins two molecules by releasing a molecule of water. This reaction is responsible for joining of monomer units to form a polymeric biomolecule or biomacromolecules.

ATP is the energy currency of the cell and is used and replenished continuously during metabolic reactions.
Hydrogen is released during dehydrogenation reactions.
${\mathrm{NAD}}^{+}$is reduced to NADH during some reactions. NADH is one of the high energy chemical intermediates i.e form in which energy is stored in our body.