10 Difference between Enzymes and Hormones

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

Character Enzymes Hormones
ChemistryThey are only proteins in nature and may have a metallic group. They are proteins, amino-acids, steroids etc.
Prosthetic groupEnzymes have vitamins and inorganic element are prosthetic groups. Without which, they do not act.They have no prosthetic groups.
SizeRelatively large in sizeSmall in size.
RoleCatalysts to enhance rate of reactionsSignal passers from one cell to other or between organs.
Chemical stabilityThey stay as such after their function.They are damage during the process and hence cannot be reused
RegulationThey 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 actionThey are formed and also act at the site of actionThey are formed and act at a distant site
Contribution to lifeThey have limited but essential functionsThey have diverse functions to control body growth, reproduction and physiology
ExamplesHydrolases, oxidases, isomerase etc. in both plants and animalsOxytocin, 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.

Before going further, read what are hormones and also enzymes.

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.

Character Enzymes Hormones
Formation In animals enzymes are synthesized and secreted by exocrine glands While the hormones are synthesized and secreted by endocrine glands
ReleaseThey act at the site of formation or carried to near by organThey are carried by blood to distant organs
FunctionTheir function depends on presence of substrateTheir function depends on positive and negative feedback mechanism.
DiseasesTheir diseases are less comparatively and mostly due to insufficiency.Hormones changes cause many disorders. It can be due to excess or even insufficiency
InterdependencyEnzymes are in work after getting message from hormonesThey convey message and do not depend on enzyme for function.
Variation with ageThey 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.

3 thoughts on “10 Difference between Enzymes and Hormones”

Leave a Comment