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

Define ziehl-neelsen staining technique, Define Ziehl-Neelsen Staining Tech...

Define Ziehl-Neelsen Staining Technique? Ziehl-Neelsen staining is used for staining these bacteria. The technique was discovered first by Robert Koch during his pioneering inv

Campylobacter infection, C ampylobacter infection C a mpylobacter ...

C ampylobacter infection C a mpylobacter jejuni is the commonest species found in poultry. These are delicate organisms that may not survive outside the host unless prot

Illustrate the effect of the drugs, Which of the following is an effect of ...

Which of the following is an effect of the following drugs? A. Drug A is an agonist of the Vasopressin2 Receptor (V2R).  High levels of Drug A in the extracellular spaces surro

Explain virus envelope, Virus envelope is known as: 1.  Capsid 2.  Vi...

Virus envelope is known as: 1.  Capsid 2.  Virion 3.  Nucleoprotein 4.  Core Capsid

Cell, What is a Cell? The body of every living being is made up a livin...

What is a Cell? The body of every living being is made up a living matter or bio matter. In the organisms these matters occur only in the form of minute membrane bound unit lum

Describe the relation between nutritional and infections, Nutritional and ...

Nutritional and Infections The interaction between nutrition and  infection  is  synergistic -  that is  nutritional deficiency lowers resistance  to infection and infection ag

Apical window, The transducer is placed in the mid axillary line with ...

The transducer is placed in the mid axillary line with the transducer ridge pointing towards the patients left to obtain the four-chamber view. The left ventricular apex is

Skeleton, what is the biological significance of skeleton

what is the biological significance of skeleton

Why does dna twist, Why does DNA twist? If it did not twist, would you...

Why does DNA twist? If it did not twist, would you expect it to fit into the miniscule cell? As we all know, if we join all of the DNA molecules from a person's body end to en

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