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!
Uricotelism
In animals which inhabit extremely arid environments, ammonia is converted into uric acid. Uric acid is least toxic, relatively insoluble and is easily precipitated. Hence, it can be excreted in solid form without loss of substantial amount of water. Pulmonate snails, terrestrial insects, squamate reptiles (lizards and snakes) and birds excrete a major portion of their waste nitrogen in the form of semi-solid or solid uric acid and hence are referred to as uricotelic animals.
Figure: Uric Acid
The synthesis of uric acid from ammonia in these animals occurs by the inosinic acid pathway. This pathway was first elucidated by Buchanan and his co- workers in the 1950s in pigeon liver. Uric acid is a member of the purines. While the details of the pathway are beyond the scope of this unit, in Figure the different fragments from which the uric acid molecule is assembled is shown. The dashed lines which divide the uric acid molecule in the Figure indicate the building blocks from which its biosynthesis takes place.
Q. Anatomy in relation to taxonomy? The use of anatomical* characters in taxonomy began with the development of the microscope which provided the biologist a new tool to observ
Can enhancers work in trans? That is, can an enhancer on one piece of DNA activate a promoter on another piece of DNA. Propose an experiment to test this. Be sure to discuss any ap
Homologous structures are the body parts in different organisms which have similar bones and similar arrangements of the blood vessels, muscles, and nerves and go through similar
What is Nerve Impulses in human biology? A nerve impulse is an electrical signal carried by a nerve cell. Unlike electrical transmission in wires, this impulse is non-decremen
Q. Show technical aspects of the postero-anterior film? 1) Identification: Patient identification and side marker must be present. 2) Centering: The thoracic spinous pro
Define Patient Education for preventive strategies for food allergy? Patient education, therefore, is critical and should include: Allergen identification (e.g., how to
Q. What are the animal pole and the vegetal pole of the vertebrate egg? The animal pole of a telolecithal egg is the portion of the egg with little vitellus it is opposite to t
CONTRACTI L E CELLS In addition to above mentioned three types of muscular tissue, there are contractile cells. These are as follows. 1. Myoepithelial Cells (= M
Descent of the Testis The testis develops on the posterior abdominal wall at the mesonephric ridge. To reach the adult position in the scrotum, it must decent. A fibrous cor
What is meant by cellular secretion? Cell secretion is the elimination to the exterior of substances formed by the cell (for instance, hormones, mucus, sweat, etc.)
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