Question

The biological catalyst present in living cells is called _______

• A. Hormone
• B. Enzyme
• C. Vitamin
• D. Mineral

Hint:

Enzymes are biological catalysts that speed up biochemical reactions in living cells.

Answer 1

The Correct Option is B

In biological and pharmaceutical chemistry, a catalyst is a substance that speeds up a chemical reaction without being consumed in the process. Within living cells, these biological catalysts are crucial for facilitating various biochemical reactions. The correct answer to the question, "The biological catalyst present in living cells is called _______" is Enzyme.

1. Understanding Biological Catalysts:
   • An enzyme is a protein molecule that acts as a catalyst in living organisms. It accelerates the rate of chemical reactions by lowering the activation energy required for those reactions.
   • Enzymes are highly specific for their respective substrates and typically work under mild conditions, such as temperature and pH, suitable for life.
2. Why Not Other Options?
   • Hormone: Hormones are signaling molecules that regulate physiology and behavior, not catalysts.
   • Vitamin: Vitamins are organic compounds and essential nutrients that the body needs in small amounts but are not catalysts themselves.
   • Mineral: Minerals are inorganic elements that serve as essential nutrients but do not act as catalysts in cellular processes.
3. Conclusion: The only option that fits the definition of a biological catalyst is an enzyme, since it facilitates and accelerates reactions without being consumed, which is crucial for maintaining life's processes.

Understanding the role of enzymes is essential for grasping how biological reactions occur efficiently within living organisms.