What is reaction specificity, Biology

Assignment Help:

Reaction specificity

Some  enzymes  catalyze only one  reaction  acting  on  a specific substrate. Example: urease  and  catalase  acts  only  on  urea and  hydrogen peroxide, respectively. This is also called absolute specificity.

Many  enzymes  can  catalyze same type of reactions  (phosphate  transfer, oxidation-reduction, hydrolysis etc.)  in  several  structurally-related compounds. Example: carboxypeptidase  acts on protein chains and removes one amino acid at a time from the C-terminal, irrespective of the nature of zimino acid.

 A substrate caa undergo many reactions but in a specific reaction, an enzyme will catitlyze  only one  of  these reactions.  Example:  citrate  synthase  converts oxaloacetate to citrate in  the presence of acetyl-CoA. But,  in  absence of acetyl-  CoA, oxaloacetate is acted  upon  by  a different enzyme malate  dehydrogenase with the formation of malate.

 


Related Discussions:- What is reaction specificity

Microbiology of air, Ask question #i need the complete table having the nam...

Ask question #i need the complete table having the names of the diseases their causative agents and their control,caused by air-borne pathogens?

Germinative zone , what is the function of the germinative zone

what is the function of the germinative zone

Define about the lactose, Define about the Lactose? Lactose has a molec...

Define about the Lactose? Lactose has a molecular structure consisting of galactose and glucose. It is of interest because it is associated with lactose intolerance which is th

Haversian canals and the volkmann canals of the bones, Q. What are the Have...

Q. What are the Haversian canals and the Volkmann's canals of the bones? Is the osseous tissue vascularized? The Haversian canals are longitudinal canals present in the osseous

Two homologous human chromosomes, Two homologous human chromosomes have the...

Two homologous human chromosomes have the following structure: --A--B-.-C--D--E--F--G--H--I--J-- --A--D--C-.-B--E--F--G--J--I--H-- where the letters represent genetic markers and t

Explain the nucleolus, Q. Explain the nucleolus? The nucleolus is an op...

Q. Explain the nucleolus? The nucleolus is an optically and a small dense region in the interior of the cell nucleus. It is made of ribosomic proteins and RNA (rRNA). One nucle

Use of echocardiography in pericardial diseases, Q. Use of echocardiography...

Q. Use of echocardiography in pericardial diseases? One of the earliest clinical applications of echocardiography was in the detection of pericardial effusion and it remains th

Nekton - aquatic ecosystem, Nekton - Aquatic Ecosystem This group cont...

Nekton - Aquatic Ecosystem This group contains animals which are swimmers. The nektons are relatively large and powerful as they have to overcome the water currents. The anima

What is the central dogma of molecular biology, What is the central dogma o...

What is the central dogma of molecular biology? Succinctly (and clearly) describe the concept.

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