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                              Q:
                           
                           
                                                      | A) Enzymes lowers the activation energy for the chemical reaction | B) Enzymes speed up the rate of a chemical reaction | 
| C) Both A & B | D) Neither A nor B | 
                              Answer:   C) Both A & B
                              
                                                            
                              
Explanation:
                               
                           
                           Explanation:
Enzymes are macromolecular biological catalysts. Enzymes accelerate chemical reactions. The molecules upon which enzymes may act are called substrates and the enzyme converts the substrates into different molecules known as products.
 
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