How does your body speed up these important reactions? The answer is enzymes. Enzymes in our bodies are catalysts that speed up reactions by helping to lower the activation energy needed to start a ...

This number is used to establish how elevated your liver enzymes are. High AST or ALT levels can indicate a problem with your liver. However, it does not usually mean you have a medical condition ...

Enzymes catalyze nearly all of the chemical reactions that occur in biological systems. Enzymes are generally proteins but also include catalytic DNA and catalytic RNA. As effective biological ...