AP BIOLOGY

Detailed explanation-1: -Answer and Explanation: A dehydration reaction can be reversed by a hydration reaction. In this reaction, a large molecule is broken into smaller molecules when water is added. For example, a disaccharide would be broken down into two monosaccharides.

Detailed explanation-2: -Dehydration synthesis reactions build molecules up and generally require energy, while hydrolysis reactions break molecules down and generally release energy. Carbohydrates, proteins, and nucleic acids are built up and broken down via these types of reactions, although the monomers involved are different in each case.

Detailed explanation-3: -Dehydration synthesis leads to the formation of polymers from small monomers where monomers are combined together by the removal of small molecules such as water. Dehydration reaction results in the formation of a covalent bond.

Detailed explanation-4: -Hydrolysis reactions use water to breakdown polymers into monomers and is the opposite of dehydration synthesis, which forms water when synthesizing a polymer from monomers. Hydrolysis reactions break bonds and release energy.