G Consider the compound. This is pyridoxal phosphate (P L P) with several functional groups selected. P L P is a heterocyclic 6 membered ring. The first position is a nitrogen which is selected and labeled D. The carbon in the third position is bound a side chain C H 2 P O 4 2 minus. The phosphate group is selected and labeled A. The carbon in the third position is single bound to a C O H group. The C O H is selected and labeled B. The carbon in the fourth position is single bonded to an O H group. The O H group is selected and labeled C. The carbon in the fifth position is single bonded to an unselected methyl group. Identify the group in pyridoxal phosphate (PLP) that covalently binds enzyme and substrate. D A B C Aminotransferases (transaminases) must deaminate one amino acid and add an amino group to another amino acid during transamination. How do the two processes differ

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.