Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Protonephridia and Metanephridia
Nephridia take place in two major forms - the protonephridium and metanephridium. Protonephridia are found in flat worms. The protonephridial canals end blindly in structures called flame cells or solenocytes internally. Flame cells comprise central cavities that are continuous with the cavities of tubules and consist of a bunch of cilia - the flame. Actually, the flame cell interdigitates along with the first cell of the tubule, by means of finger shaped processes. In solenocytes, the cell lumen is prolonged into a delicate tube and the flame is reduced to a single flagellum. Flat worms usually have a pair of protonephridia. The protonephridial canals are much branched bearing flame ceIls at the end of branches. The flame cells are found scattered during the parenchyma. The flame cells do the filtration; the filtered fluid is propelled by flagella. The nephridiaI epithelium performs the functions of reabsorption and secretion. These physiological mechanisms are comparable with those performed by a vertebrate kidney.
what is appendages in reptilia
Explain in detail about soil micromorphology A good examination with optical aid reveals more detailed features which are helpful in understanding pedogenesis. This is known as
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
Digestion of proteins Digestion of proteins is initiated in the stomach by pepsin. Pepsin acts upon food proteins and converts them to proteoses and peptones whic
State the types of brain trauma? There are two main types of brain trauma a) open head injury and b) closed head injury
Explain about the Vacuum Evaporators? It is common to construct various vacuumised vessels in series that is why the product moves from one vacuum chamber to the next and thus
What are the major terrestrial biomes? The main terrestrial biomes are: tundra, taigas (or boreal forest), temperate forests, tropical forests, grasslands and deserts.
What is Electron Cloud Model ? Electron Cloud Model : In recent models of the atom, electrons form electron clouds, in which electrons travel in spherical and dumbbell-shap
What is the action mechanism of the antibiotic penicillin? Penicillin, discovered by the Scottish doctor Alexander Fleming in 1928, is a drug that inhibits enzymes essential fo
what are the origin, morphology, active constituents, uses and market preparation of tanco beans
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd