Question

which type of biological molecule are most all enzymes?
nucleic acids
carbohydrates
proteins
lipids/fats

Explanation:

Enzymes are biological catalysts. Most enzymes are proteins. Proteins are made up of amino acids linked by peptide bonds. Their complex three - dimensional structure allows them to specifically bind to substrates and catalyze chemical reactions. Nucleic acids (like DNA and RNA) store genetic information. Carbohydrates are mainly for energy storage (e.g., starch, glycogen) and structural purposes (e.g., cellulose). Lipids/fats are important for energy storage (triglycerides), membrane structure (phospholipids), and as signaling molecules (steroids like hormones), but they are not the main class of molecules for enzymatic function.

Answer:

Proteins