Sulfonamides (sulfa drugs) such as sulfanilamide are antibacterial drugs that inhibit the enzyme dihydropteroate synthase (DS) that is required for the synthesis of folic acid in bacteria. There is no corresponding enzyme inhibition in animals because folic acid is a required vitamin and cannot be synthesized. If p aminobenzoic acid (PABA) is a substrate for DS, what type of inhibition can be predicted for the bacterial synthase enzyme in the presence of sulfonamides

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions

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1. an enzyme is considered a(n) because it speeds up a chemical reaction without being used up.2. in a catalyzed reaction, a reactant is often called a(n) . an enzyme is specific because the shape of its matches only particular reactants.4. an enzyme speeds up reactions by lowering the . the between an active site and its substrate often strains bonds and the reaction proceed.6. a( , which is often a vitamin, binds to an enzyme and plays a role in catalysis.7. high temperatures or changes in ph can an enzyme, causing it to lose its shape and biological activity.