Hormones and vitamins: Major differences
Hormone
|
Vitamin
|
1.
Synthesized in
endocrine glands and some by neurosecretory cells.
|
Taken along with
food from outside.
|
2.
These are steroids
or proteinous or amino acid derivatives.
|
Simple organic
compounds like amines, esters, organic acids etc.
|
3.
These are excitatory
or inhibitory in action. They never act as coenzymes.
|
These are generally
acts as coenzymes or constituents of coenzymes for enzyme action.
|
4.
Hormones directly
influence gene expressions.
|
Vitamins have
catalytic action.
|
5.
Their deficiency and
overproduction cause metabolic disorders
|
Their deficiency (avitaminosis)
causes specific deficiency diseases.
|