vitamin homeostasis 2012-06-04T01:28:58Z PW:0001006 Those pathways involved in the proper balance of vitamin levels, uptake and transport, utilization and storage, as demanded by the needs of cells tissues and organs. Disruption of vitamin homeostasis can have harmful consequences. Collectively they represent a class of organic chemicals that the organism cannot synthesize or does not in adequate quantities. pathway vpetri organic chemical homeostasis pathway