Explain pyruvate kinase, Biology

Assignment Help:

Pyruvate kinase catalyzes the third irreversible move in glycolysis.  It is activated by fructose 1, 6-bisphosphate.  The ATP and amino acid alanine allosterically inhibit the enzyme so which glycolysis slows when supplies of biosynthetic precursors and ATP (indicated by the levels of Ala) are already sufficiently high. Additionally, in a control similar to that for PFK, when the blood glucose concentration is low, glucagon is stimulates and released phosphorylation of the enzyme by a cAMP cascade. This covalent modification inhibits the enzyme so in which glycolysis slows down in times of low blood glucose levels.

 


Related Discussions:- Explain pyruvate kinase

Why deficiency of folate take place, Why Deficiency of Folate take place? ...

Why Deficiency of Folate take place? If there is inadequate dietary folate, the activity of both the DNA and the methylation cycles, described above, will be reduced. A decrea

What is the development of benthics, Dr. Don McPhail and his colleagues hyp...

Dr. Don McPhail and his colleagues hypothesized that the existence of the benthic and limnetic sticklebacks is the result of allopatric speciation. Although this may be true for so

What are the three main types of viral hepatitis, Q. What are the three mai...

Q. What are the three main types of viral hepatitis? There are various types of viral hepatitis. The most vital epidemiologically are hepatitis A, hepatitis B and hepatitis C.

Define formation of healthy food habit - combat from obesity, Define Format...

Define Formation of healthy food habit - combat from obesity? Discarding faulty habits as early as possible. Most food habits formed at this age are for a life time. Special c

Emergency treatment of diarrhoea, Q. Emergency treatment of diarrhoea? ...

Q. Emergency treatment of diarrhoea? Emergency treatment and drug treatment: Severe dehydration is fatal and requires intravenous fluids and hence hospitalization. You have re

Name the material used in bioinert, Bioinert Metals:-  Commercially pur...

Bioinert Metals:-  Commercially pure titanium/ titanium alloys Ceramics:-  Aluminum oxide, zirconium oxide

Define bioinert materials, Q. Define Bioinert materials? Bioinert mater...

Q. Define Bioinert materials? Bioinert materials are chemically inert in the body and exhibit minimal chemical interaction with adjacent tissue such as titanium and alumina (Al

Explain the limiting factors for the growth of a population, What are the m...

What are the main limiting factors for the growth of a population? The factors that limit the growth of a population can be divided into biotic factors and abiotic factors. The

What do you undersand by pollution, Q. What do you undersand by pollution? ...

Q. What do you undersand by pollution? The Pollution is the contamination of an ecosystem by factors that are harmful for the equilibrium of its abiotic or biotic constituents.

How hiv infection is mainly spread, It is mostly spread by sexual contact, ...

It is mostly spread by sexual contact, blood transfers and from HIV infected mother to child.

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