Types of osmotic exchanges, Biology

Assignment Help:

Types of Osmotic Exchanges

The osmotic exchanges that take place between an animal and its environment are of two different types:

  • Obligatory exchanges and
  • Regulated exchanges

 

In obligatory exchange osmotic exchanges occur mainly in response to physical factors over which the animal has little or no physiological control. Whereas in regulated exchanges, the osmotic exchanges are physiologically controlled and it serve to aid in maintaining internal homeostasis. Regulated exchanges generally serve to Animals that maintain osmolarity of their body fluids constant irrespective of the medium in which they live are termed osmoregulators.

Animals that do not actively control the osmotic condition of their body fluids and instead conform to the osmolarity of the medium in which they live are termed osmoconformers. Most vertebrates, except elasmobranches and hagfishes are strict osmoregulators, maintaining the composition of body fluids within small osmotic range. Marine invertebrates are in osmotic balance with seawater. The concentration of Na+, K , ca2+, Mg2+ and Cl- in their body fluids is close to the concentration of these ions in the seawater, in which they live.


Related Discussions:- Types of osmotic exchanges

Define the concept of health care, Define the Concept of Health Care? W...

Define the Concept of Health Care? We are aware of the fact that health is a fundamental human right. Thus, it becomes imperative for the State to assume responsibility for the

Fat soluble vitamins, FAT SOLUBLE VITAMINS Vitamin A Vitamin A may...

FAT SOLUBLE VITAMINS Vitamin A Vitamin A may be of most practical importance in cattle feed. Vitamin A is essential for normal growth, reproduction, maintenance of epithel

Fine structure of pollen tubes grown in vitro, Fine Structure of Pollen Tub...

Fine Structure of Pollen Tubes Grown in Vitro The growth in pollen tubes is exclusively restricted to the tip. Cytochemical analysis reveals the pollen tip zone to be rich in

Fields in ecology, Ecology is divided into two fields:    (a)Autecology...

Ecology is divided into two fields:    (a)Autecology     (b) Synecology   (a)  Autecology: it deals with life history, population dynamics, behavior etc of a single

Explain effect of nutrient supplements on drugs, Explain Effect of Nutrient...

Explain Effect of Nutrient Supplements on Drugs? A nutrient or nutrient supplement can alter the pharmacological action of a drug by enhancing the drug effect or by opposing it

How is the nervous system of nematodes organized, Q. How is the nervous sys...

Q. How is the nervous system of nematodes organized? Where are the neural chords located in their body? Roundworms have a ganglial nervous system with an anterior neural ring r

#fbiodiversitytitle.., Alimitation of five kingdom classification sk questi...

Alimitation of five kingdom classification sk question #Minimum 100 words accepted#

Things to do before an earthquake for minimizing losses, Things to do-  We ...

Things to do-  We ought to aide by earthquake resisting building codes during construction and retrofitting of existing buildings. We should have a first AID box handy and learn

Explain thetechnique of total anomalous surgery, Explain theTechnique of to...

Explain theTechnique of total anomalous Surgery ? Corrective surgery is undertaken as an emergency procedure after diagnosis has been confirmed by two-dimensional echocardiogra

Classification of Protozoan parasite , how to make question on classificati...

how to make question on classification of Protozoan parasite

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