Question

Which one of the following is NOT a simple protein

• A. Casein
• B. Collagen
• C. Gluten
• D. Keratin

Answer 1

Answer:

A. Casein

casein is a complex protein. It's a complete protein, meaning it contains all the essential amino acids the body needs for growth and repair. Casein is a milk protein that's produced by mammals. It's found in the milk of all mammals, but human breast milk is 40% casein and cow's milk is 80% casein.