What is what macromolecule is an enzyme?

Enzymes are macromolecules that act as biological catalysts, speeding up chemical reactions in living organisms. They are typically proteins, although some RNA molecules can also act as enzymes. Enzymes work by binding to specific substrates and facilitating the conversion of these molecules into products. They lower the activation energy needed for a reaction to occur, making it faster and more efficient. Enzymes are highly specific, meaning they only catalyze specific reactions and will only bind to specific substrates. They are essential for all biochemical processes in living organisms and play a crucial role in maintaining overall cellular function.