Characteristics of hormones, Biology

Assignment Help:

CHARACTERISTICS OF HORMONES -

(1)      They are regulatory chemicals that control and coordinate functions of different body organs.

(2)      Hormones are formed by ductless or endocrine glands.

(3)      Hormones are poured into circulatory system in which they are soluble and carried to target cells.

(4)      They function as chemical messengers or information molecules.

(5)      Hormones generally function away from the area of their formation.

(6)      They are effective in very low concentration of picograms or micrograms. The concentration of testosterone is 30 -100 ng/ml.

(7)      Hormone molecules are small in size.

(8)      They belong to diverse categories of proteins, peptides, amino acid derivatives, amines, steroids, etc.

(9)      Hormone molecules get attached to the membranes of target cells at specific points having receptors for inward passage or reaction.

(10)     They inhibit or stimulate specific processes in the target cells.

(11)     Hormones do not provide raw materials or energy. They simply start certain reactions and are consumed in the process. (12)         Hormones are formed in response to specific stimuli.

(13)     They may be formed in the inactive state e.g., pro-insulin.

14)     Hormones control most actiyities like membrane permeability, cell division, cell growth, cell differentiation, regeneration, reproductive activity, production of enzymes and metabolism, ion and water balance of the body, adaptations and emergencies etc.


Related Discussions:- Characteristics of hormones

Describe pathophysiology of tetralogy of fallots, Describe Pathophysiology ...

Describe Pathophysiology of tetralogy of fallots ? The PS causes concentric hypertrophy of right ventricle without enlargement. The right ventricular pressure are equal to or h

Explain about the biuret method, Explain about the Biuret Method? The B...

Explain about the Biuret Method? The Biuret reaction was one of first colorimetric assays developed for protein estimation. It is most often used in applications requiring a fa

What is bioremediation, Q. What is bioremediation? The Bioremediation i...

Q. What is bioremediation? The Bioremediation is the use of microorganisms, like protists, bacteria and fungi to degrade noxious substances turning them into non toxic or less

Can you explain the lichens, Q. What are the lichens? How fungi participate...

Q. What are the lichens? How fungi participate in this ecological interaction? Lichens are formed by mutualist ecological interaction between algae and fungi or between fungi a

Endosperm - pollen biology, Endosperm - Pollen Biology The examination...

Endosperm - Pollen Biology The examination of live material of j. montana reveals that the division of the primary endosperm nucleus is transverse, followed by the laying down

Ablation experiment, Ablation experiment  is an experiment designed to prod...

Ablation experiment  is an experiment designed to produce an animal deficient in one or the few cell types, in order to study cell lineage or the cell function. The logic is to mak

Explain water universal solvent, Explain water Universal Solvent ? Wa...

Explain water Universal Solvent ? Water - Universal Solvent :  Water is usually referred to as the "universal solvent." because it is able to dissolve many different substan

Rare species - wildlife, Rare Species - Wildlife These are those speci...

Rare Species - Wildlife These are those species whose numbers are few or they live in such small areas or in such unusual environments (endemics), that they could quickly disa

Explain radiology, Radiology is a medical specialty that employs the use of...

Radiology is a medical specialty that employs the use of imaging to both diagnose and treat disease visualised within the human body. Radiologists use an array of imaging technolog

Invertebrate groups possess segmented bodies, Which invertebrate groups pos...

Which invertebrate groups possess one, three, four or all of the features below?  Segmented bodies, hard exoskeleton, jointed legs, compound eyes, three pairs of walkin

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd