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Below is an example of dehydration synthesis. In dehydration synthesis, a hydrogen atom from one molecule joins with a hydroxyl group.

A) Formation of a peptide bond
B) DNA replication
C) Photosynthesis
D) Cellular respiration

User MattDavey
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1 Answer

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Final answer:

In dehydration synthesis, molecules combine by forming a covalent bond and releasing water, as seen in peptide bond formation between amino acids. Therefore, the correct option is A.

Step-by-step explanation:

In dehydration synthesis, a hydrogen atom from one molecule combines with a hydroxyl group (OH) from another molecule, causing the two molecules to form a covalent bond and release a water molecule. This process is exemplified in the formation of a peptide bond between amino acids, which is a typical dehydration synthesis reaction. When the carboxyl group of one amino acid pairs with the amino group of another, they release water and create a peptide bond that links the amino acids together, thus forming proteins.

User Ismail Sahin
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