Tracheal gills - respiration, Biology

Assignment Help:

Tracheal Gills - Respiration

In many species of aquatic insects the air in the trachae is replenished by diffusion of oxygen via tracheal gills. Many aquatic insects carry a temporary store of air as a bubble on the body surface which replenishes the air in tracheae during submergence. In other aquatic insects a constant volume of air is held as a thin layer close to the body surface by water repellent hair forming a plasteron (or layer of air).

As long as water is well aerated insects with plasteron can remain submerged for many months. As much as one-third or half of the total capacity of the air system can be emptied in one expiration giving a renewal of about half the volume of the respiratory system. This is much greater than in a mammal at rest, where in each breath only 1/5 of the air contained in the system is renewed.


Related Discussions:- Tracheal gills - respiration

Show geniculate bodies of the thalamus, Q Show Geniculate Bodies of the tha...

Q Show Geniculate Bodies of the thalamus? THALAMUS - two large circular shaped masses at "roof" of 3rd brain ventricle. Contains many different nuclei which function as relay

Explain the categories of fats and oils, Categories of Fats and Oils Yo...

Categories of Fats and Oils You already know that fatty acids are the lipid-building blocks. It is customary to divide  the fatty acids into different groups, e.g.,  saturated

What is the difference between aerobic and anaerobic beings, What is the di...

What is the difference between aerobic and anaerobic beings? Aerobic organisms are those whose cells do not survive without oxygen as they depend on aerobic cell respiration to

Of which type of defense cell do viral infections, Of which type of defense...

Of which type of defense cell do viral infections stimulate the multiplication? The major leukocytes that generally multiply and participate in the defense against viral infect

Explain the concept of atoms are associated, What is the logical order in w...

What is the logical order in which the concepts of atoms, molecules, cells... up to biosphere are associated? Atoms form molecules that structure cells that form tissues that f

Explain anticonvulsants and cerebral palsy, Anticonvulsants and Cerebral Pa...

Anticonvulsants and Cerebral Palsy Anticonvulsants : drugs that prevent reduce or stop convulsions or seizures. Cerebral Palsy: A group of chronic foundations affecting

What do we mean by the term isomer, What do we mean by  the term isomer? ...

What do we mean by  the term isomer? Existence of different compounds having  same molecular form  but dtfferent structural  forms  are isomers. Monosaccharides exhibit a varie

Gastrulation in amphibians, Gastrulation in Amphibians Amphibians com...

Gastrulation in Amphibians Amphibians comprise a large and moderately telolecithal egg. Cleavage is holoblastic and unequal generating a spherical blastula along with a reduc

Define chromatography - basic separation technique, Define Chromatography -...

Define Chromatography - Basic Separation Technique? Chromatography is the most effective technique for the separation, purification and identification of one or more biological

Explain phylum cnidaria - coelenterates, Explain Phylum Cnidaria - Coelente...

Explain Phylum Cnidaria - Coelenterates? Members of the Phylum Cnidaria and one other group-Phylum Ctenophora (the comb jellies)-are the only two animal phyla that have radiall

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