Red Seal Cosmetology Practice Exam

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Prepare for the Red Seal Cosmetology Exam. Our quiz features engaging multiple-choice questions and detailed hints to help you master essential concepts for your examination. Gear up for success in your cosmetology career!

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What type of bond joins amino acids?

  1. Hydrogen bond

  2. Ionic bond

  3. Peptide bond

  4. Covalent bond

The correct answer is: Peptide bond

A peptide bond is the correct answer because it is a specific type of covalent bond that joins together amino acids to form proteins. While hydrogen bonds and ionic bonds can also play a role in protein structure, the primary bond that joins amino acids together is the peptide bond. It is formed through a condensation reaction between the carboxyl group of one amino acid and the amino group of another. This creates a strong and stable covalent bond that is essential for the proper functioning of proteins. Therefore, options A, B, and D are incorrect as they do not specifically refer to the bond that joins amino acids together.

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