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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 .

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Answer:

Protein/nucleic acid/Carbohydrates/lipid

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The correct and most appropriate words to fill in the blanks are: peptide, water and protein.

An amino acid can be defined as a simple organic chemical compound that is made up of an acidic carboxyl group (COOH), a basic amino group ([tex]NH_2[/tex]), and a variable (unique) side chain group.

Generally, an amino acid is typically named after two (2) of its functional groups and these are:

  • An acidic carboxyl group (COOH): it acts like an acid.
  • A basic amino group ([tex]NH_2[/tex]): it acts like a base.

Basically, a peptide bond is formed between two amino acids when they unite. Also, this chemical reaction lead to the release of a molecule of water.

Finally, the union of many amino acids forms a macromolecule called a protein.

In conclusion, protein is a macromolecule which is formed as a result of the union of many amino acids.

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