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

Molecular biology, how biochemical evidence proof DNA as a genetic material...

how biochemical evidence proof DNA as a genetic material?

What are neurodegenerative diseases, What are neurodegenerative diseases an...

What are neurodegenerative diseases and how might they be treated? Neurodegenerative diseases that include Alzheimer's, Parkinson's, Huntington's, and amyotrophic lateral scler

How to calculate the raw score for each scale, How to calculate the raw sco...

How to calculate the raw score for each scale The raw score for each scale is the sum of the 0, 1 and 2 item scores. Thus, the higher the score, the poorer the performance. Th

Digestion in the intestine, Digestion in the Intestine About  2  to  3 ...

Digestion in the Intestine About  2  to  3  liters  of  alkaline  fluid  is secreted every  day  by  the intestine  and completes the digestive process.  Sodium bicarbonate and

Amphibians - regeneration in vertebrates, Amphibians - Regeneration in Vert...

Amphibians - Regeneration in Vertebrates Newts and salamander show remarkable regenerative ability in larval as well as adult stages. In larval stages except for limbs and tai

Duck plague (duck virus enteritis), Duck plague (duck virus enteritis) ...

Duck plague (duck virus enteritis) Duck plague is the most serious disease caused by a herpes virus (Anatid herpes virus). Though antigenically homogenous, differences in virul

What are the major purposes of the organic molecules, Q. What are the major...

Q. What are the major purposes of the organic molecules for living beings? Ans. Organic molecules, like, lipids, carbohydrates and proteins perform several functions for

Translation in prokaryotes, Term Translation or protein synthesis, is quite...

Term Translation or protein synthesis, is quite similar in eukaryotes and prokaryotes. We will look at the details of the process in prokaryotes and consider the differences in euk

Define the clinical experience of anorexia nervosa, Define the Clinical exp...

Define the Clinical experience of anorexia nervosa? Clinical experience suggests that many of the untoward consequences of refeeding can be minimized or avoided by starting the

Develop a hypothesis relating to the amount, Develop a hypothesis relating ...

Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water.

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