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

What is dry mass, What is dry mass? When biomasses are compared often t...

What is dry mass? When biomasses are compared often the method of dry mass is used. The dry mass is the total mass less the water mass of an individual. The total mass is also

What is transgenic food, What is transgenic food? Transgenic beings are...

What is transgenic food? Transgenic beings are animals, microorganisms and plants that have recombinant DNA, i.e., genes from other plants, microorganisms or animals artificial

What are the uses of wpc, What are the uses of WPC?  Whey protein conce...

What are the uses of WPC?  Whey protein concentrates are used extensively in the manufacture of baked goods, where they enhance the effectiveness of shortening through better d

How to prevent hiv-infection, HIV-Infected patients Because TB therapy ...

HIV-Infected patients Because TB therapy is complicated by co-infection with HIV, testing for HIV infection is recommended for all patients with active tuberculosis. To minimiz

Explain the term of measurement of height in veous pressure, Explain the te...

Explain the term of measurement of height in veous pressure? Measurement of Height: Measurement of height of venous pressure is done from the sternal angle of Louis verticall

Gutta percha removal-endodontics principles, Gutta percha removal: Poor...

Gutta percha removal: Poorly condensed GP or single cone technique, -    Hedstrom hand files. -    Barded broaches. The well condenced GP: -    Rotary files; -    Ultrasoni

Hydropower, Energy from water or hydropower            Hydroelectrici...

Energy from water or hydropower            Hydroelectricity is the energy produce from the kinetic energy of water falling from height. Approximately 25% of world electricity

How are the female gametes of gymnosperms formed, Q. How are the female gam...

Q. How are the female gametes of gymnosperms formed? What is the relationship between this process and the concept of alternation of generations? In the female strobiles (cones

Explain about the spectrophotometer, Explain about the Spectrophotometer? ...

Explain about the Spectrophotometer? The spectrophotometer, a key instrument today in biomedical laboratories, was invented in 1939 by the American chemist Arnold O. Beckman (1

What is the meaning of visuoperceptive disorders, What is the meaning of Vi...

What is the meaning of Visuoperceptive disorders It relates to the way in which brain damage impairs people's ability to adapt to the visual world and the concepts used to trea

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