Anabolic reactions are chemical reactions of the body that build things, make them bigger or more complex. catabolic reactions break things down making them smaller or less complex. if the rate of anabolic reaction in the body is much faster than the rate of catabolic reactions which necessary life function will be accomplished?

Growth

Explanation:

Living beings are characterized by performing certain vital functions which in turn set them apart from the nonliving things. These life processes are namely, growth, reproduction, metabolism, excretion, digestion, sensitivity to surroundings, etc.  

The growth of living beings occurs by an increase in cell number and cell enlargement. Anabolic reactions are the ones that make complex molecules using simpler substances. Some of these complex molecules are proteins, fats, various fibers such as collagen, components of matrices of various connective tissues, etc.  

When the rate of anabolic reactions is higher than that of catabolic reactions, more of these complex biomolecules are being formed. The synthesized proteins are incorporated into muscles, bone matrices are deposited to support the skeletal growth.

The newly formed proteins and DNA support the cell division which in turn increases the total number of cells in the body. All these events together bring about the growth of the organism.