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When two monomers join to build a polymer, the small molecule released is:
AOxygen
BWater
CCarbon
DSodium
Answer & Solution
Correct answer: B. Water
1. Polymers are assembled by dehydration synthesis reactions.
2. The name means 'to put together while losing water'.
3. One monomer gives up a hydroxyl group and the other a hydrogen, and these leave together.
4. The molecule released is therefore water.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 3 'Biological Macromolecules', sections 3.1-3.5_
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