What is hormones??

Hormone is a chemical substence that secreted into the internal body fluid by one cell or group of cella and exerts a physiological control effect on other cells of the body. Example - growth hormones,oxytocin etc.

Classification of Hormones

Based on Chemical nature: 1.Proteins or polypeptides hormones-example:growth hormone, prolactin,oxytocin,insulin etc. 2.Steroid hormone -example:eateogen,progesterone,testosterone hormone etc. 3.Derivatives of the amino acid tyrosine-example:thyroxine ( T4),tri-idothyronine,calcitonin etc. Based on the site of action: 1.General hormone-example-growth hormone,thyroid hormone,insulin etc. 2.Local hormone-example:local hormones of GIT. Tropic hormone-example:thyroid stimulating hormone (TSH),lutenizing hormone(LH) etc.

What is Enzymes??

Enzymes are organic catalysts that is produced by the living cells.Enzymes are protein in nature.Example -Amaylase,lipase,pepsin,urease etc which causes hydrolysis of food staffs.

Classification of Enzymes

There are aix major classification of enzyme.They are given bellow- 1.Oxidoreductase. 2.Transferase. 3.Hydrolase. 4.Lyase. 5.Isomerase. 6.Ligase.

What are the properties of enzymes??

1.Enzymes are heat liable. 2.Enzymes are made of protein. 3.It is not dialysable. 4.Enzymes remain unchanged after reaction. 5.Specificity of enzymes.

What are the Difference between hormones and enzymes

                                    

Hormonones	Enzymes
1. Hormones are generally both protein and steroid in nature	1.Enzymes are always protein in nature
2.They are secretedby definite endocrine gland or cell or group of cell	2.Enzymes are always secreted by any tissue or cell
3.Hormones act upon target tissue.It may be locally or distally.	3.Enzymes generally act locally.
4.Hormones generally act by produching 3-5 cyclic AMP or specific protein which may be an enzymes.	4.Enzymes are organic catalysts and they act upon biochemical reactions.
5.Hormones are named according to the nature, source of origin and function.	5.Enzymes are named according to the chemical change they have done.
6.For hormone action definite receptor is required.	6.For enzymes action definite receptor is not required.
7.They generally regulate morphogenesis, developments of gonads,secondary sex character etc.	7.They cannot regulate morphogenesis.
8.Hormones generally stimulate or inhibit hormone secretion by feed back mechanism.	8.Enzyme cannot do so.