Red Seal Cosmetology Practice Exam

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What are the chemical bonds called that join amino acids together?

  1. Hydrogen bonds

  2. Salt bonds

  3. Peptide bonds

  4. Sulfur bonds

The correct answer is: Peptide bonds

Peptide bonds are the specific type of chemical bonds that join amino acids together. This is because peptides are composed of amino acids linked together by peptide bonds. Option A Hydrogen bonds are also important in the structure of proteins, but they do not specifically join amino acids together. Option B: Salt bonds are also known as ionic bonds and are not involved in joining amino acids together. Option D: Sulfur bonds can contribute to the overall structure of a protein, but they are not the main bonds involved in joining amino acids together.

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