Regulation of GNG and glycolysis Describe how high energy charge favors gluconeogenesis over glycolysis based on the...

50.1K

Verified Solution

Question

Biology

Regulation of GNG and glycolysis

  1. Describe how high energy charge favors gluconeogenesisover glycolysis based on the ratio of [ATP]/[AMP] of high energycharge and allosteric regulation (McKee page 298).
  2. Describe how low energy charge measured by low ratio of[ATP]/[AMP] inhibits the rate of GNG based on allosteric regulationof fructose 1,6 bisphosphatase by AMP.
  3. Compare the rates of GNG and glycolysis in a liver cellwith low energy charge based on allostericregulation.
  4. Differentiate between the blood concentrations ofinsulin and glucagon hormones based on the period after acarbohydrate meal
  5. Differentiate between the blood concentrations ofinsulin and glucagon hormones based on fasting period
  6. Differentiate between regulation by hormone and energycharge based on the time frame of the response
  7. Differentiate between regulation by hormone and energycharge based on the locations in which hormones and allostericeffectors bind with respect to the cell
  8. Describe how hormones regulate enzyme activity byphosphorylation based on a series of reactions that start withhormone binding (see video lecture).
  9. Differentiate between stimulation of glycolysis and GNGbased on a cell stimulated by insulin
  10. Differentiate between stimulation of glycolysis and GNGbased on a cell stimulated by glucagon.
  11. Describe how increase in oxaloacetic acid (OAA)concentration stimulates glycolysis based on Le Chatelier’sprinciple.

Answer & Explanation Solved by verified expert
4.1 Ratings (722 Votes)
Ans 1 Gluconeogenesis is the process of formation of glucose from noncarbohydrate precursors and Glycolysis is the breaking down of glucose in order to produce energy and we know that ATP is the energy currency of the cell So high ATPAMP ratio suggest that currently the cell has enough concentration of ATP and it does not required any more ATP right now so this will inhibit the process of glycolysis and favors gluconeogenesis Also one of the main regulatory enzyme phosphofructokinase which catalyzes the conversion of fructose6phosphate into fructose16bisphosphate in glycolysis is inhibited by ATP and activated by AMP so in the case of high ATPAMP ratio this enzyme will be inhibited and in case of gluconeogenesis the enzyme fructose bisphosphatase which catalyzes the conversion of Fructose16bisphosphate into Fructose6phosphate is inhibited by AMP and in case of low AMP concentration this enzyme is not being inhibited which will favor the gluconeogenesis 2 As i described in the first part that Fructose16bisphosphatase one of the regulatory enzyme in the gluconeogenesis is inhibited by AMP so in case of low ATPAMP ratio the AMP concentration will be rises and this will inhibit the enzyme 3 As i described in the first part that    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students