Question

what is the building of macromolecules by removing water called?
dehydration synthesis
hydrolysis
catalysts

Explanation:

Dehydration synthesis is a chemical reaction where two molecules are joined together with the removal of a water molecule. This process is fundamental in building macromolecules like polysaccharides (from monosaccharides), proteins (from amino acids), and nucleic acids (from nucleotides). Hydrolysis is the opposite process (adding water to break macromolecules), catalysts are substances that speed up reactions without being consumed, and they are not the process of building macromolecules by removing water.

Answer:

dehydration synthesis