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.
porifera characteristics
Q. Functions of Colour in Foods? Let us now look at the different functions of colour in details, which are enumerated herewith: 1. The maturity of many fruits and vegetable
Q. Define Pulmonary angiography? Pulmonary angiography is the angiographic opacification of the main and pulmonary artery and its branches. By radiographic techniques, it is po
DIFFERENCES BETWEEN PROKARYOTIC & EUKARYOTIC CELLS S . N o . CHA R AC T ERS P R O K AR Y O T I C CELL
Chambers of the Heart The heart is divided into two halves by a muscular wall or septum, the right heart and the left heart. The function of the right heart is to collect
Immunogenicity The safety and immunogenicity of the new vaccine was evaluated in two unpublished studies that are summarized in the package insert. Among 1280 adults (18-55 ye
Determine the Cardio-vascular System Cardio-vascular system consists of a heart and blood vessels. The function of cardio- vascular system is to maintain blood supply to all t
In 1798, British economist and demographer Thomas Robert Malthus, published his' essay on population' in which he stated that: 1. Population increases in a geometric rat
Which of the following compounds does NOT contain an amine? Select one: a. Glutamine b. Acetate ion c. Urea d. Guanidinium ion e. Creatine
Total Arterial Re-vascnlarisation : In total arterial re-vascularisalion (TAR) end of the right internal mammary artery (RIMA) or radial arlery (RA) is anastomosed to the side of
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