Physiology of excretion, Biology

Assignment Help:

PHYSIOLOGY OF EXCRETION -

1.      FORMATION OF UREA -

It takes place in liver.

(i) Deamination

799_formation of urea.png

(ii) Ornithine cycle or urea cycle -

  • Explained by H. Kreb and Hansleit. 2 mol of NH3, 1 CO2, 2H2O combine to form urea as byproduct.
  • 3 A.T.P. are consumed.
  • Process takes place in five steps -

Enzyme used in five steps are -

1. Carbamyl phosphate synthatase                       

2. Ornithine carbamyl transferase.

3. Argino-succinic acid synthetase                       

4. Argio-succinase                                

5. Arginase

1438_formation of urea1.png


Related Discussions:- Physiology of excretion

Explain broad spectrum antibiotics?, Board spectrum antibiotics are effecti...

Board spectrum antibiotics are effective against several diff. types of harmful bacteria ex: tetracycline

Plants, In school laboratory, what is usually regarded as evidence that pho...

In school laboratory, what is usually regarded as evidence that photosynthesis has occurred in a plant

What is the equilibrium state of the system, For each of the cases that fol...

For each of the cases that follow, list as many properties of the equilibrium state as you can, specially the constrains placed on the equilibrium state of the system by its surrou

What are the typical fauna of the deserts, What are the typical vegetation ...

What are the typical vegetation and the typical fauna of the deserts? The predominant fauna of desert ecosystems is produced by reptiles, as lizards and snakes, terrestrial art

Coordination and response, Name the two hormones produced by the pancreas a...

Name the two hormones produced by the pancreas ans say in what circumstances, in what way, they adjust the glucose concentration in the blood.

What are the centrioles, Q. Into which periods is mitosis has divided? ...

Q. Into which periods is mitosis has divided? Mitosis is divided into four periods: metaphase, prophase, telophase and anaphase. Q. What are the centrioles and in which typ

What is chemical disinfection, Q. What is Chemical disinfection? Chemic...

Q. What is Chemical disinfection? Chemicals are added to waste to kill or inactivate the pathogens it contains, this treatment usually results in disinfection rather than steri

How does a dna vaccine prevent future disease, How does a DNA vaccine preve...

How does a DNA vaccine prevent future disease? A DNA vaccine having DNA from a pathogen but cannot cause disease. When the vaccine is injected into a patient, the DNA directs t

Explain methods and vectors, Match each of the methods or vectors below to ...

Match each of the methods or vectors below to an appropriate form of gene therapy, assigning two methods or vectors to each form. Use each method or vector only once. Methods/v

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