Question

required information
enzymes are __________.
multiple choice
lipids
proteins
carbohydrates
steroids
nucleic acids

Explanation:

Enzymes are biological catalysts. Most enzymes are proteins, although some RNA - based enzymes (ribozymes) also exist. Proteins are the main class of molecules that function as enzymes due to their complex 3 - D structures which allow them to bind to specific substrates and facilitate chemical reactions.

Answer:

proteins