Why is reciprocal regulation a key feature of glucose metabolism?
Q: What are the regulatory means that prevent high levels of activity in glycolysis and gluconeogenesis…
A: Glycolysis is the first step of cellular respiration that deals with the breakdown of glucose to…
Q: What is the function of the kinase associated with the pyruvate dehydrogenase complex?
A: Pyruvate dehydrogenase complex (PDC) is a complex of three enzymes that converts pyruvate into…
Q: Why does it make metabolic sense for the same hormone signal to stimulate glycogenolysis and inhibit…
A: The muscles and the liver respond in distinct ways to the same hormone signal, thus participating in…
Q: What is the main purpose of the citric acid cycle?
A: The citric acid cycle is also called a tricarboxylic cycle where oxidation of fuel such as…
Q: Which steps of aerobic metabolism of pyruvate through the citric acid cycle are control points?
A: Cellular respiration can be defined as the series of metabolic reactions that occur in the living…
Q: Which of the enzymes in glycolysis are NADH linked dehydrogenases?
A: Glycolysis is the first step in energy production from glucose. Carbohydrates from the food are…
Q: Why are thioesters considered high-energycompounds?
A: Energy-rich compounds in cells comprise five kinds of high-energy bonds: phosphoanhydride, acyl…
Q: What role does cyclic AMP play in glucose regulation?
A: Cyclic adenosine monophosphate is a messenger molecule used in the signalling pathways. It is…
Q: Explain the Allosteric regulation of glucose metabolism.
A: Glycolysis involves the breakdown of glucose to pyruvate to synthesize ATP. Glycolysis is divided…
Q: Why is glucose provided by glycogenolysis in the liver but not in skeletal muscle?
A: Through glycogenolysis process, glycogen broken down into glucose and provide energy. Muscle…
Q: . How would the rapid accumulation of succinyl-CoA affect the rate of glucose oxidation?
A: Cellular Respiration is the oxidative process through which energy is obtained from the food. The…
Q: How does glucose binding to glycogen phosphorylase stimulate glycogen synthesis?
A: When there is an enormous amount of energy present, then the cell uses these to synthesize glycogen…
Q: What would be the result of a lack of glucose 6-phosphatase activity?
A: Glucose 6-phosphatase deficiency was caused due to lack of the enzyme glucose-6-phosphatase which…
Q: What properties of glucokinase allow it to phosphorylate glucose in the liver when the blood glucose…
A: Glucokinase is an enzyme that facilitates phosphorylation of glucose to glucose-6-phosphate.…
Q: What is the function of the glucose-alanine cycle in normalmetabolism?
A: The glucose-alanine cycle is also known as the alanine cycle or the Cahill cycle. It occurs under…
Q: How many ATPs would result from the reaction involving the alpha-ketoacid dehydrogenase complex…
A: 1 mole of a substance consists of 6.02 x 1023 molecules.1 mole of glucose would consist of 6.02 x…
Q: How are enzymes in Citric Acid Cycle regulated? What are these enzymes and their inhibitors?
A: Cellular metabolism is the set of all reactions that are involved in producing energy in the body.…
Q: How many molecules of Pyruvate can form from Glycerol metabolism as a by-product of fatty acid…
A: The major precursors of gluconeogenesis are lactate, glycerol, alanine, ketone bodies like…
Q: Why is it essential that the mechanisms that activate glycogen synthesis also deactivate glycogen…
A: Glycogen is a polysaccharide that facilitates the energy storage functions in animals, bacteria,…
Q: What is the key enzyme of glycolysis which catalyzes the production of fructose-1,6-bisphosphate?
A: Phosphofructokinase is the key enzyme of glycolysis that catalyzes the production of fructose 1,6…
Q: Why can it be said that each glucose molecule runs the Krebs cycle twice?
A: The process of exchange of gases through different modes, like air or water, for their survival is…
Q: Why is the TCA cycle considered to be the central pathway in the energy metabolism of a cell?
A: The citric acid cycle serves a number of vital activities in addition to supplying energy from the…
Q: Does glucagon lead to the deactivation or activation of glycogen phosphorylase and the…
A: Glucagon is a peptide hormone secreted by α-cells of pancreas. Glucagon released during the low…
Q: How does insulin contribute in regulation of fatty acid metabolism?
A: Fatty acids are the simplest form of lipids and they serve as the constituent in a large number of…
Q: How does fatty acid enter mitochondria via the acyl-carnitine/carnitine transporter?
A: The mitochondrial membrane is impermeable to fatty acids and so carnitine carrier system plays an…
Q: Why is pyruvate referred to as the hub of glucose oxidation?
A: Glycolysis is the oxidation of glucose to produce carbon dioxide and water. Pyruvate is the…
Q: What are the end-products of the complete aerobic catabolism of glucose?
A: The synthesis of energy in animal cells is carried out through two main mechanisms such as aerobic…
Q: Why is it advantageous that breakdown of glycogen gives rise to glucose-6-phosphate rather than to…
A: Introduction The phosphorolytic cleavage of glycogen results in the formation of glucose-6-phosphate…
Q: What is the metabolic advantage in the conversion of glucose to lactate, in which there is no net…
A: Metabolism is term which is used to describe all chemical reactions involved in maintaining the…
Q: what is the role of amino acids in purine metabolism?
A: Purine metabolism is described as a process in which different metabolic pathways are followed so as…
Q: What would be the effect of the inhibition on other intermediates in the citric acid cycle?
A: Citric acid cycle occurs in the matrix of mitochondria (cytosol in prokaryotes). The net result of…
Q: Which one of the following regarding the chemistry of glycolysis & gluconeogenesis is FALSE?
A: Glycolysis is breakdown of glucose while gluconeogenesis is formation of glucose. Gluconeogenesis…
Q: What are the sources of glucose 6-phosphate in liver cells?
A: Glucose 6 phosphate is produced in the cells in two different ways. The glucose that is…
Q: Which of the following is NOT an important precursor of glucose in animals when gluconeogenesis…
A: GLUCOSE 6 PHOSPHATE is not an important precursor of glucose in animals when gluconeogenesis occur.
Q: Why is it advantageous for the liver to have both hexokinase and glucokinase to phosphorylate…
A: Introduction: Glucokinase is an enzyme that aids in the phosphorylation of glucose to produce…
Q: what is one physiological consequence that might occur if gluconeogenesis was the exact opposite of…
A: Gluconeogenesis is a process by which glucose molecules are produced from non-carbohydrate…
Q: What is the reaction catalyzed by glucose 6-phosphatase?
A: Glucose 6-phosphate : It is a glucose sugar phosphorylated at the hydroxy group on carbon 6.
Q: What steps of the citric acid cycle are regulated? How and why are they regulated?
A: In metabolic pathways, the regulation of key enzymes is essentials for the productions of…
Q: Why is it reasonable for excess NADH to negatively regulate the citric acid cycle?
A:
Q: .What would happen in the Krebs cycle with the loss of activity of phosphoglycerate kinase? What…
A: Hi! Since you have posted multiple questions and have not mentioned which question to answer, we…
Q: What is the final fate of the carbons in acetyl-CoA after several turns of the citric acid cycle?
A: Citric acid cycle: It is a series of chemical reactions used by all aerobic organisms to release…
Q: what effect would an increase in glucose typically have on the activity of glycogen synthase
A: Effect of glucose-6-phosphate on glycogen synthase activity in the liver. Glucose-6-phosphate is an…
Q: Gluconeogenesis takes place during intense exercise, which seems counterintuitive. Why would an…
A: Introduction: The chemical reactions that occur inside the living body for the formation of energy…
Q: During glycolysis, fructose 1,6-biphosphate splits into two compounds: ______________ after reacting…
A: The process of glycolysis is defined as the multistep pathway that aims at the production of…
Q: Is the statement much of the regulation of gluconeogenesis a result of the inhibition of glycolysis…
A: Gluconeogenesis is a process by which sugar especially glucose is produced form non carbohydrate…
Q: Explain what is the relationship between glycolysis and gluconeogenesis?
A: Glycolysis is the metabolic process by which glucose is broken down (Catabolic pathway), while…
Why is reciprocal regulation a key feature of glucose
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