Plants turn the energy of sunlight directly into food by tying sunlight energy into chemical bonds in the form of sugar. Enzymes are responsible here, too, they control the absorption of radiant energy. The sunshine will be hot enough to melt tar on the streets, but plant leaves remain bearly warm to the touch. It is slowly being tied up in the chemical bonds of sugar. The process is photosynthesis and it is the basis of all life on earth, but without enzymes controls this process would be impossible.
Enzymes are at work wherever there is life.
Yeast use enzymes to levin bread and ferment sugar into alcohol. Bateria use enzymes to break down cellulose fiber in the stomachs of cows and the stomachs of termites. Plants, animals, bacteria, or fungi, if they are alive, use enzymes to control all living chemical reactions. Reproduction, growth, metabolism, synthesis, are all enzymes regulated reactions in living things. Enzymes are the chemicals that make life work.