Question

Hormones are proteins that regulate many functions in the body, such as growth and cell differentiation. Which of the following does NOT describe a function of proteins in living organisms?

Answer 1

Answer Options:

• Proteins store energy long term, provide lubrication, and insulate the body
• Proteins in the form of enzymes catalyze chemical reactions
• Proteins provide structures in the body, such as hair and muscles
• Proteins in the cell membrane help transport substances into and out of cells

Answer:

• Proteins store energy long term, provide lubrication, and insulate the body

Explanation:

• Proteins store energy long term, provide lubrication, and insulate the body  - this is false, this describes the role of fats.
• Proteins in the form of enzymes catalyze chemical reactions  - this is true, enzymes are an important class of proteins in the body
• Proteins provide structures in the body, such as hair and muscles  - this is true, for example our hair is made of a protein called keratin
• Proteins in the cell membrane help transport substances into and out of cells  - this is true, proteins form important pumps and channels in the cell membrane