Question

multiple choice 1 point
when proteins are broken down, phenylalanine is sometimes produced. phenylalanine contains the elements carbon, nitrogen,
hydrogen, and oxygen. phenylalanine is which type of compound?
monosaccharide
fatty acid
amino acid
phospholipid
multiple choice 1 point
which of the following categories of organic molecules is correctly paired with one of its functions?
nucleic acids—digest dead cells
proteins—provide structure in skin, hair, and nails
lipids—give quick energy to cells
carbohydrates—store genetic information

Explanation:

• Question 7: Proteins are made up of amino acids. Phenylalanine is an amino acid, which is a building block of proteins.
• Question 8: Proteins provide structure in skin, hair, and nails. Keratin, a type of protein, is a major component of these structures.

Answer:

• Question 7: amino acid
• Question 8: proteins—provide structure in skin, hair, and nails