Osmoregulation in terrestrial environment, Biology

Osmoregulation in Terrestrial Environment

 Earlier you have learnt about osmoregulation in aquatic environment. In this section, we shall study how the terrestrial animals cope up with the problems of osmoregulation. Just like the aquatic animals which are submerged in an aqueous medium, animals in a terrestrial environment can be thought of as submerged in an ocean of air. Unless the humidity of the air is high, animals having a water permeable epithelium will be subjected to dehydration very much as if they were submerged in a hypertonic medium such as seawater. In order to avoid dehydration, the epithelium should be totally impermeable to water.

The evolutionary process was not found this to be a feasible solution to the problem of desiccation, since an epithelium that is impermeable to water will be dry and such a type of epithelium will have limited permeability to respiratory gases. This mechanism will not fulfil the respiratory needs of a terrestrial animal. Due to the presence of permeable respiratory epithelia, air-breathing animals lose water across it, which would result in dehydration. Various means have been evolved to minimise the water loss in to the air through the respiratory epithelium and also other parts of the body. We shall now learn about them.

Posted Date: 1/16/2013 2:46:04 AM | Location : United States







Related Discussions:- Osmoregulation in terrestrial environment, Assignment Help, Ask Question on Osmoregulation in terrestrial environment, Get Answer, Expert's Help, Osmoregulation in terrestrial environment Discussions

Write discussion on Osmoregulation in terrestrial environment
Your posts are moderated
Related Questions
Clinical Manifestations Early Symptoms Symptoms are episodic in nature or continuous with very little response to bronchodialators. Productive cough especially on awake

Fruits Diabetics should have fruits every day. Be careful to select fruits and fruit juices, citrus fruits, such as oranges, grapefruit should be included. Tell them to eat fru

Favus Fowl favus is a superficial, chronic, sporadic mycotic infection of birds caused mainly by Trichophyton gallinae. Very rarely Trichophyton simii is also involved in the

Pneumonia Pneumonia is an inflammatory process in which there is consolidation in lung caused by exudates filing the alveolar spaces. Gas exchange cannot take place in the c

The greatest buffering capacity of weak acids is when- Select one: a. They are almost completely dissociated b. They are almost completely undissociated c. They are nea

wolves are predators for hares the wolf population increases what happenes next?

Which of the following processes in capillaries in the lung assist in the removal of carbon dioxide from the body? A. Net flux of carbon dioxide from red blood cells into plasm

C o n t a g i o u s bovine pleuropneumonia It is a disease of bovines characterized by high rise of body temperature and difficulty in respiration. E t iolo

Question 1: Explain the importance of Human Genome Project in Research and list the different methods available for Gene sequencing Mention the importance of Human Genome

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4