"describe the mechanism of feedback inhibition and the role this process plays in controlling enzyme activity."

In biochemistry, feedback inhibition occurs when the end product produced by the reaction using an enzyme, interacts with the enzyme again such that it inhibits the initial reactants. This is important in metabolic reactions to control too much production of amino acids or too much work done by enzymes to break down macromolecules. 

Glucose, also called grape sugar, blood sugar or corn sugar, is among the simplest and one of the primary naturally occurring sugars. produced naturally by plants as the primary photosynthesis product, it is heavily used by living beings as a main energy source and is necessary for cellular respiration. chemically, it is a monosaccharide carbohydrate and serves as a building block for complex sugars like starch.

Photo means light and synthesis means combination so combination of light