Question

3.10-12 p
choose words to complete the sentence
two amino acids unite by forming a(n) − bond between them and releasing a molecule of −. the union of many
amino acids forms a macromolecule called a − (protein / nucleic acid / carbohydrate / lipid).
lipid
carbohydrate
nucleic acid
protein

Explanation:

Amino acids are the building blocks of proteins. When two amino acids combine, they form a peptide bond, and water is released as a by - product. Proteins are macromolecules made up of amino acid chains.

Answer:

First blank: peptide; Second blank: protein