Enzymes are biological catalysts that speed up chemical reactions without being consumed. Key features include high specificity, meaning they act on specific substrates, and their ability to function under mild conditions. Enzymes have an active site where the substrate binds, forming an enzyme-substrate complex. They are sensitive to temperature and pH, which can affect their activity. Enzyme action is also reversible and follows the “lock and key” or “induced fit” model. If you're struggling to explain enzyme features in detail, BookMyEssay provides expert features of enzymes Assignment Help in biology and biochemistry to ensure accurate, well-researched answers that meet academic standards.