Guanotelism - excretion, Biology

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.

Posted Date: 1/16/2013 1:07:56 AM | Location : United States







Related Discussions:- Guanotelism - excretion, Assignment Help, Ask Question on Guanotelism - excretion, Get Answer, Expert's Help, Guanotelism - excretion Discussions

Write discussion on Guanotelism - excretion
Your posts are moderated
Related Questions
Tasks of  Orientation Phase: Establishing contact with the patient  Developing  the pactlcontract  Talking to the patient  Establishing Contact with the Patient

Define the Sun and Solar Drying Method? The make use of solar energy to preserve the food items is mainly the oldest form of food reservation and is still practiced today for f

Regarding the article "Baby Blues" which of the following is a false statement? A. Children, whose mothers underwent severe stressful episodes during pregnancy, have higher tha

what is the mode of nutrition in pisces

What is the role of mineral salts in the creation of electric tension (voltage) at the cellular level? The electric activity of the cell, for instance, in neurons, depends on

What is the fact of Molecular Biology on which DNA fingerprint is based? DNA fingerprint, the method of individual identification using DNA, is based on the fact that the DNA o

how can i work with u as an online biology tutor?

Describe a. the factors responsible for promoting lactation, and b. the mechanism responsible for the cessation of lactation when a mother weans her baby.

a) What are the advantages of human milk over cows' milk for feeding babies? b) Apart from the composition of the milk, what are the other advantages of breast- feeding?

In eukaryotes possibly the most rapid and complex signaling is mediated through nerve impulses.  The Nerve  cells  (neurons)  consist  of  a cell  body  with  numerous projections