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What are Catalysts in Biology? PDF | Download eBooks

Learn Catalysts definition in biology with explanation to study “What are Catalysts”. Study catalysts explanation with biology terms to review biology course for online degree programs.

Catalysts Definition

  • Catalysts are chemical agents that selectively speed up chemical reactions without being consumed by the reaction.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson



Catalysts Explanation

Generally, the rate of a chemical reaction is increased by adding a substance known as a catalyst, which is not consumed in the catalyzed reaction and can continue to act repeatedly. Because of this, only very small amounts of catalyst are required to alter the reaction rate in principle. In general, chemical reactions occur faster in the presence of a catalyst because the catalyst provides an alternative reaction pathway with a lower activation energy than the non-catalyzed mechanism. In catalyzed mechanisms, the catalyst usually reacts to form a temporary intermediate, which then regenerates the original catalyst in a cyclic process.

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