QUESTION 1 Because they are primarily catabolic and need to hoard (keep) glucose for their own use, muscle cells have little to no gluconeogenesis activity. The prevention of gluconeogenesis is achieved primarily by the fact that muscle cells: Do not express pyruvate kinase. Express a very active form of pyruvate decarboxylase. Do not express glucose-6-phosphatase. Express hexokinase rather than glucokinase.
Q: D Question 19 What is the name of the enzyme responsible for removal of one glucosyl unit from the…
A: The enzyme which removes one glucosyl unit from non reducing end if glycogen is glycogen…
Q: Question 9 Which of the following problems is solved by both the glycerol 3-phopshate and the…
A: Often the permeability of membranes in the cell and cell organelle depends upon the function of the…
Q: I need a simple explanation of what PFK1 and PFK2 do in glycolysis? And what FBPase1 and FBPase2 do…
A: Glycolysis is the breakdown of glucose into pyruvate or lactate. Phosphofructokinase (PFK-1) is a…
Q: You can choose either allosteric or competitive inhibitor for all questions.
A: Pyruvate is acted upon by pyruvate dehydrogenase to convert pyruvate to acetyl-CoA. The acetyl-CoA…
Q: Question 36 Glycogen supercompensation can result in a 25-50% increase in muscle glycogen content.…
A: Fitness may be attained by eating nutritious foods and participating in sports and doing regular…
Q: Question 3. Someone conducted a kinetic study on insulin and insulin receptor binding. It is found…
A: The binding affinity can also be determined by the dissociation constant.
Q: QUESTION 4 Which of the following occurs during Bypass I of gluconeogenesis? (Select all that…
A: The three reactions out of ten of the glycolysis are irreversible. These three reactions are…
Q: Question 2. Discuss the importance of Glucose-6-phosphate dehydrogenase enzyme in the Pentose…
A: In animal tissues, glucose has two possible fates: be oxidised into carbon dioxide and water by…
Q: Question 29 options: If 6 molecules of acetyl CoA were completely oxidized by the CAC, how many…
A: The citric acid cycle (CAC) is also known as the TCA cycle (tricarboxylic acid cycle) or the Krebs…
Q: Remember that hexose kinase is an enzyme required for hexose metabolism, a process that takes a…
A: Glycolysis is a 10 step process of breakdown of one molecule of glucose into two molecules of…
Q: Question 7 Which of the following statements is CORRECT? The activity of the alpha(1,6)glucosidase…
A: Phosphatase enzymes are enzyme which are involved in the removal of phosphate group from the…
Q: QUESTION 30 Select the INCORRECT statement about Glutamate dehydrogenase: Oa. Catalyzes the…
A: Glutamate dehydrogenase: It is a mitochondrial enzyme that is primarily found in liver and also in…
Q: QUESTION 2 2.1 Draw a metabolic chart indicating the carbohydrate transporters involved in…
A: We are authorized to answer one question at a time since you have not mentioned which question you…
Q: QUESTION 24 The oxidation of 3 mol of glucose by the pentose phosphate pathway may result in the…
A:
Q: Statement Analysis: Statement 1: Phosphofructokinase and fructose 1,6-bisphosphatase are key control…
A: Phosphofructokinase (PFK1) is a key regulatory enzyme of the glycolytic pathway. PFK1 catalyzes the…
Q: QUESTION 2 Below is the structure of Acetyl CoA. Click or select the part of the molecule that…
A: The citric acid cycle is a series of chemical reactions used by all aerobic organisms to release…
Q: Statement 1: Pyruvate processing occurs inside the enzyme complex pyruvate kinase. Statement 2: In…
A: Cellular respiration is a Metabolic process in which organic molecule like glucose is degraded and…
Q: Question 5: (a) Why is it important that gluconeogenesis is not the exact reversal of glycolysis?…
A: Glycolysis is a metabolic pathway in which glucose is converted into two molecules of pyruvate in…
Q: QUESTION 8 Consider the following portion of the glycolytic sequence catalyzed by the enzymes above…
A: Glycolysis is the metabolic pathway involved in cellular respiration that involves ten enzyme…
Q: a. The first step in the pay-off phase of glycolysis is the oxidation of glyceraldehyde-3-phosphate…
A: Glycolysis is the pathway which breaks down glucose into two three-carbon compounds and also…
Q: QUESTION 1 There are dozens of different genetic varlants of G-alpha. Compared to cells expressing a…
A: Hi! Thanks for your question. As you have posted multiple questions and have not mentioned which…
Q: True or False: Haworth and Fischer projections allows an individual to see reactive sites in…
A: The structure of monosaccharides can be represented in the Fischer projection or Haworth projection.…
Q: QUESTION 1: What fatty acid can cross membranes as free fatty acid without protein assistance,…
A: Carnitine can cross membrane as free fatty acid without protein assistance ,could then become…
Q: QUESTION 34 Which of the following represents a reaction that could be used to refill he TCA cycle…
A: ATP is the energy currency for all living cells. The citric acid cycle is also known as the…
Q: 64 An investigator is studying the mechanism of action of an insulin-sensitizing drug. The addition…
A: Introduction Insulin is a hormone produced by the gland pancreas that regulates the level of…
Q: Signals such as glucagon and epinephrine regulate the metabolism of lipid through G protein coupled…
A: Hypoglycemia causes the pancreatic alpha cells to produce glucagon, which promotes hepatic glucose…
Q: QUESTION 3 Pyruvate carboxylase is allostenically activated by the presence of acetyl-CoA. Glucagon…
A: Glucagon is produced when the body has low blood sugar level and the body responds to it by…
Q: QUESTION 5 The Bypass reactions of gluconeogenesis: O Reverses glycolysis reactions that are very…
A: The synthesis of glucose from non-carbohydrate molecules is referred to as gluconeogenesis. This…
Q: 61. Degradation of glycogen in muscle fails to supply significant amounts of blood glucose because…
A: 61. Degradation of glycogen in muscle fails to supply significant amounts of blood glucose because…
Q: Question 25 Which of the following enzymes is responsible for the addition of UDP-glucose to the…
A: Glycogen synthase is the enzyme responsible for the addition of UDP glucose to the growing glycogen…
Q: Question 1 Which of the following statements is true regarding compounds of the TCA cycle resulting…
A: Tricarboxylic (TCA) acid or citric (CAC) acid cycle is a circular metabolic pathway, during which…
Q: QUESTION 34 Which of the following represents a reaction that could be used to refill the TCA cycle…
A: TCA cycle occurs in the matrix of mitochondria. The net result of Kreb cycle is that for each acetyl…
Q: QUESTION 2 Consider the chemical transformation in the reaction shown below. Select the fermentation…
A: Ans: In the present reaction the H from NADH is added to C=O to form C-OH. The details on which type…
Q: Question 03 Write the inhibitors of following metabolic pathways 1. glycolysis 2. TCA
A: In general, products of reaction's are inhibitors of the reaction and substrates and cofactors of an…
Q: QUESTION 9 Which statement is NOT true? Phospholipase A1 hydrolyzes the fatty acid from the…
A: Enzymes are the catalysts that elevate the pace of the reaction in the living body without…
Q: Question 23 Which of the following cause decrease in the activity of the pyruvate debydrogenase…
A: The pyruvate dehydrogenase complex is consisting of three enzymes pyruvate dehydrogenase E1,…
Q: Question 40 A series of chemical reactions convert a polypeptide into 8 acetyl CoAs. This acetyl CoA…
A: Citric acid cycle: The citric acid cycle is made up of eight chemical reactions that result in the…
Q: Question 4 "The following describe lipoprotein organization, classification & function, EXCEPT: "…
A: Answer is.. "Lipid content is less than protein thus, the higher the % TAG the less dense the…
Q: QUESTION 18 Explain the reason why at low ATP concentrations the velocity of PFK-1 is faster than…
A: Phosphofructokinase is the most important enzyme that is persistent in the mammalian glycolytic…
Q: 284
A: The Gs alpha subunit (Gαs, Gsα) is a subunit of the heterotrimeric G protein Gs. Gs alpha subunit is…
Q: Question #15 Which of the following transporters we discussed in this part of the course transports…
A: A is incorrect Reason : GLUT transporter in liver : Transports glucose in and out of the liver cells…
Q: What is the metabolic significance of the following observations? (1) Only the liver form of…
A: Glucose is catabolized to generate energy via glycolysis, the TCA cycle, and the electron transport…
Q: Acyl CoA synthetase hydrolyzes ATP to AMP + PPI (pyrophosphate) as part of the activation of fatty…
A: Asked : The role played by the enzyme inorganic pyrophosphatase in the activation of fatty acids
Q: QUESTION 17 Which of the followings can be used as the starting point of gluconeogenesis? O a.…
A: All living organisms are made up of cells. The cells are the basic structural and functional unit of…
Q: Question 36 Glycogen supercompensation can result in a 25-50% increase in muscle glycogen content.…
A: Gylcogen supercompensastion is method in which competitors take high carbohydrates diet which body…
Q: Question 19 Match the enzyme and the substrate it uses v alpha-kelogkutarate delhydrogenase complex…
A: A chemical reactant called a substrate binds to enzymes. Every enzyme has at least one substrate,…
Q: Which of these is NOT true of the citric acid cycle? Group of answer choices The citric acid cycle…
A: Citric acid is a central metabolic pathway where a series of chemical reactions takes place for the…
Q: QUESTION 6 In anaerobic glycolysis in mammals, the NAD needed for the pathway is regenerated by…
A: Anaerobic glycolysis is the process of oxidation of glucose in the absence of oxygen which involved…
Q: Give a diagrammatic representation of fatty acid synthase complex and discuss the regulation of…
A: Fatty acid synthesis refers to the formation of the fatty acid from acetyl CoA (coenzyme A) and…
Q: QUESTION 44 Gluconeogenesis can be described as "glycolysis backwards" but some enzymes are replaced…
A: Gluconeogenesis The biological process that converts non carbohydrate substrate like amino acid…
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- Question-An individual suffers a deficiency in pancreatic amylase so that this enzyme is not normally active. What food component will this effect and how will it be affected? What functions of food processing will be affected? How will the individual's nutrition be impacted by this deficiency?Question:: Acyl CoA synthetase hydrolyzes ATP to AMP + PPI (pyrophosphate) as part of the activation of fatty acids to fatty acyl-CoA. Explain the role played by the enzyme inorganic pyrophosphatase in this reaction (in the activation of fatty acids to fatty acyl CoA) in the space provided below.The Vmax of muscle glycogen phosphorylase is much larger than that of the liver enzyme. Discuss the functional signifi cance of this phenomenon.
- Need help, please. Given that the enzyme pyruvate carboxylase converts Pyruvate into Oxaloacetate and this is an anapleurotic reaction. In the liver, what is most of the OAA converted into under these conditions? Please explain. 1. When blood glucose levels are low and the energy charge in the cell is high. 2. When mitochondrial acetyl-CoA levels are high and the energy charge is low.Question:- Two enzymes, acetate kinase and phosphotransacetylase, convert acetate [CH3C(O)O–] and ATP to acetyl phosphate and ADP (acetate kinase reaction) then acetyl phosphate and CoASH (coenzyme A) into acetyl-CoA and inorganic phosphate (Pi ; phosphotransacetylase reaction). What is the ΔG°' for the synthesis of acetyl-CoA from acetate, CoASH, and ATP by this enzyme pair?Glycogen synthase catalyzes glycogen synthesis. Determine whether each intermediate is associated with an “increase” or “decrease” and or “no effect” on the activity of glycogen synthase. Glucose 6-phosphate – cAMP –
- What is the physiologic significance of pyruvate dehydrogenase complex?What's the biochemical basis for the management of diabetes mellitus and contrast glucose homeostasis in neonates and adults.Diabetes Type 1 and Type 2 Applying signal transduction mechanisms in the context of Type I and Type II Diabetes. Describe the mechanisms by which a cell receives a message and translates it into short-term or long-term effects. Including the role of phosphorylation and feedback inhibition.Enzyme Activity and Physiological Function, The Vmax of the enzyme glycogen phosphorylase from skeletal muscle is much greater than the Vmax of the same enzyme from liver tissue. (a) What is the physiological function of glycogen phosphorylase in skeletal muscle?
- Many of the mechanisms involved in the regulation of glycogen metabolism involve covalent modification of enzymes. In particular, reversible phosphorylation/ dephosphorylation plays a central role.(a) Estimate the ΔG°′ for the dephosphorylation of phosphorylated Ser-14of glycogen phosphorylase (catalyzed by phosphoprotein phosphatase 1).Explain your reasoning.(b) Estimate the ΔG°′ for the phosphorylation of Ser-14 of glycogen phosphorylase by ATP (catalyzed by phosphorylase kinase). Explain yourreasoning.(c) Would you expect both reactions to be favorable under physiologicalconditions (i.e., to possess a negative ΔG)?27. the glycolytic enzyme pyruvate kinase is activated by dephosphorylation and inactivated by phosphorylationQuestion: Role of the triacyl glycerol cycle. Summarize the cycle referring to Figure 19.9. What role does the cycle play in metabolism? Here are some infromation: Metabolic integration within the human body depends on the redistribution of metabolites, ions, and hormones by the circulatory system. This complex network consists of ∼150,000 km of blood vessels (from major veins and arteries to microcapillaries) that recycle 6 L of blood every minute throughout the body. The circulatory system links together the major tissues and organs of the body in such a way that biochemical pathways in different cells share metabolites, ensuring that the metabolic efficiency of the whole organism is greater than the sum of its parts. This process of maintaining optimal metabolite concentrations and managing chemical energy reserves in tissues is called metabolic homeostasis. This term describes steady-state conditions that apply to a wide variety of physiologic parameters. Metabolic homeostasis is…