Enzymes and hormones are bio-genic substances present in all the living organisms. They are present in both plants and animals. But their functions and roles in the body are quite different.
Difference between Enzymes and Hormones
|Chemistry||They are only proteins in nature and may have a metallic group.||They are proteins, amino-acids, steroids etc.|
|Prosthetic group||Enzymes have vitamins and inorganic element are prosthetic groups. Without which, they do not act.||They have no prosthetic groups.|
|Size||Relatively large in size||Small in size.|
|Role||Catalysts to enhance rate of reactions||Signal passers from one cell to other or between organs.|
|Chemical stability||They stay as such after their function.||They are damage during the process and hence cannot be reused|
|Regulation||They function under strict conditions of temperature and pH in body.||They are not limited by temperature or pH but controlled by brain or external factors.|
|Formation and action||They are formed and also act at the site of action||They are formed and act at a distant site|
|Contribution to life||They have limited but essential functions||They have diverse functions to control body growth, reproduction and physiology|
|Examples||Hydrolases, oxidases, isomerase etc. in both plants and animals||Oxytocin, testosterone, cortisol in animals.|
Absicic acid, cytokines, gibberlins in plants.
Also their formation and secretion varies in both plants and animals.
Enzymes are bio-catalysts which help in speeding up biochemical reactions.
While hormones are substances which act as messengers to communicate in between cells and organs.
So the above difference are common in animals and plant.
But there are also differences in only animals. Before you read further, read hormones of plants and animals.
|Formation||In animals enzymes are synthesized and secreted by exocrine glands||While the hormones are synthesized and secreted by endocrine glands|
|Release||They act at the site of formation or carried to near by organ||They are carried by blood to distant organs|
|Function||Their function depends on presence of substrate||Their function depends on positive and negative feedback mechanism.|
|Diseases||Their diseases are less comparatively and mostly due to insufficiency.||Hormones changes cause many disorders. It can be due to excess or even insufficiency|
|Interdependency||Enzymes are in work after getting message from hormones||They convey message and do not depend on enzyme for function.|
|Variation with age||They are same and do not change with age.||They tend to change with age. As the age grows some hormones start to appear and at old age some hormones start to disappear like in menopause.|
Thus enzymes and hormones function and features differ to each other. But both of them are essential to body and should not be neglected if there are disturbances.