Which term refers to the specific biological catalysts that speed up chemical reactions in cells?

• A. Enzymes
• B. Inhibitors
• C. Cofactors
• D. Substrates

Answer: (A)

Verified step by step guidance

1. Identify the role of each term in a biological context: Enzymes, Inhibitors, Cofactors, and Substrates.
2. Understand that enzymes are proteins that act as biological catalysts, speeding up chemical reactions in cells without being consumed in the process.
3. Recognize that inhibitors are molecules that decrease the activity of enzymes, often by binding to the enzyme and preventing substrate interaction.
4. Note that cofactors are non-protein chemical compounds that assist enzymes in catalyzing reactions, often by stabilizing the enzyme or substrate.
5. Understand that substrates are the specific reactants that enzymes act upon during a chemical reaction, binding to the enzyme's active site.