Guanotelism - excretion, Biology

Assignment Help:

Guanotelism - Excretion

Arachnids (spiders and scorpions) excrete mostly guanine and hence are said to be guanotelic. Guanine, like uric acid, is relatively non-toxic and insoluble and is excreted in solid form. It is an adaptation to life in arid habitats. It is also a purine and has the same atoms in its ring structure as in uric acid.

In fact, guanine is formed as an intermediate during uric acid synthesis in uricotelic animals. In spiders and scorpions, the inosinic acid pathway terminates in guanine formation. The origin of the four nitrogen atoms of guanine is similar to that of uric acid.


Related Discussions:- Guanotelism - excretion

What is the difference between spermatids and sperm cells, What is the diff...

What is the difference between spermatids and sperm cells? What is the name of the transformation of spermatids into sperm cells? Sperm cells (the male gametes) are matured spe

What are the flat bones and the long bones, What are the flat bones and the...

What are the flat bones and the long bones? The major bones of the body may be divided as flat or long bones (there are bones not classified into these categories). Such as fla

Describe airway and respiratory support in heart disease, Describe Airway a...

Describe Airway and Respiratory Support in the Newborn ? Like in any other emergency situation a stable airway needs to be established first. Newborns with severe respiratory d

What is action mechanism of antibiotic penicillin, Q. What is action mechan...

Q. What is action mechanism of antibiotic penicillin? Penicillin, discovered by the Scottish doctor Alexander Fleming in 1928, is a drug that inhibits enzymes essential for the

Explain the cost benefit analysis, Explain the Cost Benefit Analysis? C...

Explain the Cost Benefit Analysis? Cost-benefit analysis: Cost benefit analysis is a useful tool to establish the priority of a particular health service action. In this, both

What is an example of a hypothesis, What is an example of a hypothesis whic...

What is an example of a hypothesis which may explain why there is not a big representation of the class Reptilia found in polar regions? Beings of the class Reptilia are abunda

Define prevention of vitamin a deficiency, Define Prevention of vitamin A d...

Define Prevention of vitamin A deficiency? Since dietary inadequacy is the major cause for micronutrient deficiencies, the most rational approach to prevent these deficiencies

What is electro osmosis , What is Electro osmosis ? Electro osmosis :...

What is Electro osmosis ? Electro osmosis :  Electroosmosis is the movement of charged molecules along a charged surfaces in response to a voltage difference. For example, e

Explain the term - muscle contraction headache, Explain the term - Muscle C...

Explain the term - Muscle Contraction Headache This is one of the most common headaches. It is also known as tension or nervous headaches. They result from sustained contractio

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