What happens to an enzyme after it catalyzes a chemical reaction?

The shape of the enzyme will be changed by the presence of two or more chemical reactants. Then the enzyme catalyzes the reaction. After the reaction is catalyzed, the producet will be released. Then the enzyme will be able to relax. So this means that the enzyme is back to its normal shape and it will get ready to do it again. 

What is your question then

the glands which are associated with each description is given below:

pancreas - is an endocrine and exocrine gland that secretes juices with enzymes for digestion. salivary glands- with protection and digestion in the mouth. liver- secretes bile for digestion.   lachrymal glands - secrete tears to moisten eyes and protect them from particles and infection.   sweat gland -regulates water, salt, and temperature. oil glands - to form a protective barrier on the skin.   goblet cells - secrete mucus for protection.