Enzymes Practice 9M2

Write your FULL name and class section Fill in the blanks using words from the word bank provided Enzymes are special types of proteins that act as a catalyst in chemical reactions. Catalysts help speed up chemical reactions by lowering the activation energy of a reaction. Choose the best answerWhich letter represents the activation energy of a chemical reaction with an enzyme present? A B C Without the presence of enzymes, the reactions necessary to sustain life would require _ in order to occur. larger cells higher temperatures larger proteins smaller atoms In what way could you increase the rate of the reaction as it taking place in image C. add more substrate add more enzyme remove enzymes remove substrate What does the term optimum mean for enzyme temperature? The lowest temperature at which the enzyme works The temperature which gives the highest enzyme activity The highest temperature before denaturing occurs Experiments were designed to study the effect of pH on the rate of enzyme action for 2 different enzymes found in animals, Enzyme A and Enzyme B. Enzyme A is found in the stomach and digests meats. Enzyme B is found in the intestine and digests facts. Use the graph to answer the following questions:Since Enzyme B is found in the intestine, what is the probable pH of the intestine? 3 7 2 8 Match the following Enzymes Catalyst that speed up chemical reaction Optimum Temperature or pH that enzyme works best denature when enzyme active site changes and substrate can no longer fit catalyst substance that speeds up chemical reaction