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Catalyst Definition and Explanation PDF | Download eBooks

Learn Catalyst definition in microbiology with explanation to study “What is Catalyst”. Study catalyst explanation with microbiology terms to review microbiology course for online degree programs.

Catalyst Definitions:

  1. A catalyst is a substance that increases the rate of a chemical reaction without being permanently altered itself.

    Prescott's Microbiology 9th Edition by Joanne Willey, Linda Sherwood, Christopher J. Woolverton



  2. A substance that alters the rate of a reaction without being consumed or permanently changed by it. In cells, enzymes are catalysts.

    Foundations in Microbiology by Kathleen Park Talaro, Arthur Talaro



Catalyst Explanation:

Catalysts are those substances which when added to a reaction speeds up the rate of reaction and is not consumed in the process. They either change the reaction mechanism or reduce the activation energy to speed up a reaction. Enzymes are biological catalysts which speed up a chemical reaction.

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