Multiple choice

The breakdown of proteins results in _________.

  1. sugars

  2. glycerol

  3. fatty acids

  4. amino acids

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Amino acids are the chemical units or building blocks of the body that make up proteins. Protein substances make up the muscles, tendons, organs, glands, nails, and hair. The final digestion products of proteins are amino acids.