What is the simplest explanation in the notion that phosphofructokinase is a regulated enzyme?
Q: Why does it make good metabolic sense for phosphoenolpyruvate carbox- ykinase, rather than pyruvate…
A: Phosphoenolpyruvate carboxylase is an enzyme in the family of carboxy-lyases found in plants and…
Q: How does the action of allosteric effectors differ in the reactions catalyzed by phosphofructokinase…
A: Glycolysis is breakdown of glucose. It is a ten step enzymatic process. Phosphofructokinase is an…
Q: What is the metabolic role of aspartate transcarbamoylase?
A: Aspartate transcarbamoylase catalyzes the first biochemical reaction in pyrimidine biosynthesis. It…
Q: describe the mechanism of the phosphoglucoisomerase reaction
A:
Q: Why is the reaction catalyzed by citrate synthase considered a condensation reaction?
A: The citric acid cycle is the oxidation metabolic pathway that leads to the production of electrons…
Q: Why is acetyl CoA an especially appropriate activator for pyruvate carboxylase?
A: The citric acid cycle (TCA) is a catabolic process. It is a series of chemical reactions in which…
Q: What kind of inhibitor is threo-sphingosine? Explain this type of inhibition.
A: Introduction: Enzymes are the catalyst of life. Enzyme inhibitor is defined as a substance which…
Q: Why does it make metabolic sense for ADP and GDP to inhibit ribose phosphate pyrophosphokinase?
A: Ribose phosphate phosphokinase or ribose-phosphate pyrophosphokinase (RPPK) is a phosphoribosyl…
Q: Why is AMP and not ADP the positive regulator of phosphofructokinase?
A: Metabolic pathways are defined as the set of chemical reactions occurring in the body. Metabolic…
Q: Why does phosphoenolpyruvate have such a high phosphoryltransfer potential?
A: Cellular respiration is a catabolic pathway of the process of metabolism, where a series of chemical…
Q: Is it true that beta-ketoacyl-ACP-reductase catalyzes the committed stepn in fatty acid…
A: Beta-ketoacyl-ACP-reductase main function is to produce fatty acids of various lengths for use by…
Q: What is a word equation for the enzyme catalys phenoloxidase?
A: enzymes are bio catalyst which lower the energy of activation and increase the speed of the reaction…
Q: How does the action of allosteric effectors differ in the reactions catalyzed by phosphofructokinase…
A: Allosteric effectors are the molecules that bind with one of the active sites of an enzyme that are…
Q: What are the two most important carriers in one-carbonmetabolism? Give two examples of processes in…
A: These are the interlinking pathways that require methionine and folate.
Q: What are the 3 modifications that prepare pyruvate for the Krebs Cycle?
A: Pyruvic acid (CH3COCOOH) is the simplest of the alpha-keto acids and is an organic acid and a…
Q: Mercuric ion and methanol are inhibitors of alcohol dehydrogenase. Explain.
A: Alcohol (ADH) dehydrogenase is an enzyme that helps in the interconversion of alcohol into ketones…
Q: What is the relationship between protein modification and allosteric control of phosphofructokinase?
A: The enzyme phosphorylase exists in two forms : Phosphorylase a and phosphorylase b. Phosphorylase a…
Q: What is the difference between glutamine synthetase andglutaminase?
A: Enzymes are proteins that have catalytic powers.
Q: Why is the Krebs cycle considered part of aerobic metabolism, even though O2 does not appear in any…
A: Asked : Reason for kreb's cycle : part of aerobic metabolism
Q: Under anaerobic circumstances, why is pyruvate converted to lactate?
A: Anaerobic Glycolysis is the process of glucose oxidation that occurs when oxygen levels are low,…
Q: Why is it advantageous for two control mechanisms —allosteric control and covalent modification— to…
A: Enzymes are the proteins which act as a catalyst in chemical reactions. Enzymes never take part in…
Q: What is ornithine transcarbamylase (OTC)deficiency ?
A: Ornithine transcarbamylase (OTC)deficiency is a rare x linked recessive genetic disorder…
Q: What are the three most common mechanisms forenzyme-catalyzed reactions that have two substrates?
A: Introduction: There are three mechanisms for enzyme-catalyzed reactions having two substrates:…
Q: What citric acid cycle intermediates would accumulate in the presence of malonate?
A: The citric acid cycle or Krebs cycle, also known as the tricarboxylic acid cycle (TCA). This cycle…
Q: Considering the evidence that led Krebs to propose a cyclic pathway for oxidation of pyruvate,…
A: Introduction: Metabolically plants and animals are different in several metabolic stages. Plants…
Q: Why does it make metabolic sense for UTP to inhibit carbamoyl phosphate synthetase II, whereas ATP…
A: Feedback inhibition is a cellular control mechanism in which the activity of the enzyme is inhibited…
Q: Phosphoenolpyruvate is a common substrate found in what two pathways?
A: Phosphoenolpyruvate is an important intermediate in biochemical pathways. Chemically it is an ester…
Q: Does PFK-2 (Phosphofructokinase-2) have coenzymes and Allosteric reguation?
A: Enzymes are proteins that play a major role as biochemical catalysts in speeding up a biochemical…
Q: Which amino acids can be converted to pyruvate by a single enzyme-catalyzed reaction?
A: Pyruvate is a three-carbon compound that is the end product of the glycolysis pathway. Pyruvate is…
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 physiological significance of the isozymic forms of lactate dehydrogenase (LDH)? Explain…
A: Lactate dehydrogenase (LDH) is a tetrameric protein that catalyzes the reversible conversion of…
Q: What is the substrate for the enzyme alpha-amylase?
A: Alpha-amylase (-amylase) is an enzyme with the EC number 3.2.1.1 that breaks down alpha bonds in…
Q: In what way is the observed mode of action of hexokinase consistent with the induced-fit theory of…
A: In enzymology, allosteric regulation is the inhibition or activation of an enzyme by a small…
Q: Why is citrate an appropriate inhibitor of phosphofructokinase?
A: Citrate allosterically inhibits phosphofructokinase by enhancing the inhibitory effect of ATP
Q: Why is the TCA cycle is important for both anabolic and catabolic reactions?
A: After each turn of the TCA cycle, oxaloacetate is regenerated and can combine with another…
Q: Why is pyruvate converted to lactate under anaerobic conditions?
A: Anaerobic Glycolysis was the process of oxidation of glucose that takes place when the oxygen levels…
Q: Why is gluconeogenesis labeled as enzymatic by-pass reactions?
A: Glucose is a central carbohydrate in body. It is the instant energy generating molecule. Whenever…
Q: What are the two unique enzymes of glyoxylate cycle and their reactions? What main role of the cycle…
A: The main purpose of the glyoxylate cycle is the use of acetyl-CoA for the production of glucogenic…
Q: What does Succinyl coa By-products in krebs cycle?
A: Kreb cycle is a process in which a series of chemical reactions takes place in order to release the…
Q: Why is it advantageous for citrate, the product of Reaction 1 of the citric acid cycle, to inhibit…
A: Glycolysis is the process by which one molecule of glucose is converted into two molecules of…
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: Considering the evidence that led Krebs to propose a cyclic pathway for oxidation of pyruvate,…
A: The Citric acid cycle, or the Tri-carboxylic acid cycle is commonly known as the Kreb's cycle, which…
Q: "which of the following can be used to replenish oxaloacetate in the krebs cycle" a. aspartic acid…
A: Replenishment of oxaloacetate in Krebs cycle: The concentrations of the intermediate molecules of…
Q: What are three heterotropic allosteric regulators of glycogen phosphorylase? Describe their effects.
A: One of the phosphorylase enzymes is Glycogen Phosphatase. Glycogen phosphorylase releases…
Q: If acetyl-CoA containing radiolabeled carbons in the acetyl group was used to synthesize leucine,…
A: Amino acids are biosynthesized from the intermediates of glycolysis, tricarboxylic acid cycle or the…
Q: What is the mechanism of an enzyme reaction involving a coenzyme for Nucleophilic Addition Rxns?…
A: Enzymes are essential components of all metabolic processes in the body. They are catalytic…
What is the simplest explanation in the notion that phosphofructokinase is a regulated enzyme?
Step by step
Solved in 2 steps
