Differ-enzymes and hormone.

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Differ-enzymes and hormone.

Posted by Sachin Kumar 8 years, 1 month ago

CBSE > Class 11 > Biology

1 answers

Varun Banda 8 years, 1 month ago

Enzymes are biological catalysts which speed up the the rate of biochemical reactions without undergoing any change. ... A hormone, on the other hand , enzymes are biological catalysts released by glands where as hormones are chemicals released by glands.

<th>Character</th> <th>Enzymes</th> <th>Hormones</th>

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.