Why is the active site specific for only one type of substrate? Enzymes have a lock and key type fit so only a specific substrate fits in the activation site.
        
             
        
        
        
Answer;
im confuzzled but it might obviously be B. if im correct.
Explanation:
 
        
                    
             
        
        
        
Digestion begins in the mouth with chewing and ends in the small intestine. As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. ...Digestive juices contain enzymes that break food down into different nutrients.
        
             
        
        
        
Sedimentary and metamorphic rocks?