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SECTION 2.4: ENZYMES

SECTION 2.4: ENZYMES. WHAT ARE ENZYMES? Biological catalysts Proteins! Very large!!!. Enzymes lower the energy needed for a chemical reaction to occur ENERGY OF ACTIVATION!!!!. Enzymes speed up chemical reactions. HOW DO ENZYMES WORK? Each enzyme catalyzes only ONE chemical reaction

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SECTION 2.4: ENZYMES

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  1. SECTION 2.4: ENZYMES

  2. WHAT ARE ENZYMES? • Biological catalysts • Proteins! • Very large!!!

  3. Enzymes lower the energy needed for a chemical reaction to occur • ENERGY OF ACTIVATION!!!!

  4. Enzymes speed up chemical reactions

  5. HOW DO ENZYMES WORK? • Each enzyme catalyzes only ONE chemical reaction • Enzymes are SPECIFIC • A particular enzyme can only speed up its own unique reaction • Why? Enzymes have a unique shape

  6. Because enzymes are proteins, they can be damaged (denatured) by changes in: • pH • Salt concentration • Heat

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