All of the following serve as substrates for gluconeogenesis, except A. Glucogenic amino acids B. Lactate C. Glycerol D. Acetyl CoA
Q: Please describe the steps by which the carbons in ketogenic amino acids could be incorporated into…
A: Ketogenic amino acids: The carbon skeletons are catabolized to acetyl-CoA or acetoacetate and can…
Q: Some amino acids are both glucogenic and ketogenic. Explain the difference between the two types and…
A: Glucogenic amino acid is an amino acid that can be converted into glucose through gluconeogenesis.
Q: If Acetyl CoA is converted to a ketone, it is likely that which of the following is undergoing…
A: more then one option is correct. Correct answer are oxaloacetate and fatty acids. Incorrect one are…
Q: Which of the following intermediates are shared by ketone body synthesis and cholesterol…
A: In the mitochondria when acetyl-CoA accumulates beyond its capacity to be oxidized or used for fatty…
Q: A deficiency in which of the following B vitamins would NOT directly impact the ability of cells to…
A: Deficiencies in all of the above would directly impact the ability of cells to convert pyruvate into…
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A: The cells inside the body of people who are diabetic are unable to uptake glucose from blood.…
Q: How does the hydrolysis of fructose-1,6- bisphosphate bring about the reversal of one of the…
A: Glycolysis is a metabolic process that breaks down glucose to form pyruvate and two adenosine…
Q: which of the following is not glucogenic ? a) pyruvate b) oxaloacetate c) acetyl - co A d) Lactate
A: Gluconeogenesis is the process of synthesis of glucose from glucogenic substrates to prevent…
Q: In this transamination reaction (right), which of the following are the products X and Y?…
A: Transamination reaction always have an amino acid and Alpha keto acid as substrate. The products of…
Q: Glucagon stimulates _____________________ in the liver. A. glycogenolysis and gluconeogenesis B.…
A:
Q: A fatty acid (17-carbon one), at least a portion of it, turned into glucose (considered glucogenic),…
A: Introduction The difference between the degradation of odd fatty acids from even fatty acids is the…
Q: The amino acids of proteins can enter the process of cellular respiration, but first the must…
A: Introduction Cellular respiration is almost always aerobic but anaerobic can sometimes be relied…
Q: Which of the following is a key molecule that functions as oxidation end product in the catabolism,…
A: Fatty acids undergo a catabolic process known as a beta-oxidation pathway in order t generate energy…
Q: Ketogenic amino acids may be metabolized to which compound?
A: Amino acids are the building blocks of the proteins which are made of amino group(NH2), carboxyl…
Q: Acetyl CoA is generated from ________. A. oxaloacetate B. pyruvic acid C. citric acid D. water
A: The citric acid cycle, also known as the Krebs cycle or the tricarboxylic acid cycle (TCA), is a…
Q: Which one of the following statements concerning gluconeogenesis is correct? a. It is inhibited by…
A: Metabolic pathways play an important role in preserving the functions and different processes of the…
Q: Leucine and lysine are ketogenic amino acids. What does that mean for their metabolism? ON These…
A: A ketogenic amino acid is an amino acid that can be degraded directly to acetyl-CoA which is a…
Q: Why would cooking a plant or piece of meat affect the activity of catalase, but not the activity of…
A: Enzymes are a class of proteins that act as biological catalysts. They increase the rate of the…
Q: Explain why inhibiting the activity of acetyl-CoA carboxylase might not affect a person’s body mass.
A: Acetyl-CoA carboxylase (ACC) is a biotin-dependent enzyme that catalyzes the irreversible…
Q: The liver converts a variety of pyruvate- forming substances to glucose during starvation. Which of…
A: Glucose is the principal source of energy in organisms. Often other sources of carbohydrates and…
Q: Which of the following statements regarding formation of glucose - 1 - phosphate from glycogen is…
A: Carbohydrates are a group of an organic molecule that helps the body to generate energy. These…
Q: Describe the role of fructose-2,6-bisphosphate in regulating gluconeogenesis and glycolysis.
A: The process of breakdown of glucose to generate the energy molecule adenosine triphosphate (ATP) is…
Q: Describe the role of acetyl-CoA, acyl carrier protein (ACP), and fatty acid synthase in fatty acid…
A: Fats are an important storage biomolecule in the human body. When plenty of glucose is available in…
Q: Which of these statements about lactate dehydrogenase is true? a.It is a protein. b.It oxidizes…
A: Lactate dehydrogenase consist of various isoforms.
Q: Which of the following statements about the transamination and deamination steps of amino acid…
A: The amino acid biosynthetic pathway involves transamination reactions. The alpha-amino group of one…
Q: Explain why the amino acid tryptophan is both ketogenicand glucogenic.
A: The amino acid is the organic acid that contains alpha carboxyl group, alpha amino group, hydrogen…
Q: What impact would an increase in intramitochondrial oxaloacetate have on fatty acid synthesis?…
A: Fatty acids are carboxylic acids with long hydrocarbon chains. Fatty acids undergo β oxidation when…
Q: What enzyme will be used if only the non-oxidative portion of the pentose phosphate pathway is…
A: An alternative pathway for glucose oxidation is the pentose phosphate pathway(PPP) or…
Q: Amino acids that degrade, yielding acetyl-CoA or acetoacetylCoA, are referred to as…
A: The strategy of amino acid degradation is to transform the carbon skeletons into major metabolic…
Q: When the ketone bodies are utilized for energy production at the target tissues, they are converted…
A: The ketone bodies are first formed in the liver and are then exported to other organs as fuel.…
Q: Name the anabolic pathway that synthesizes fatty acids.
A: Fatty acid synthesis is the important anabolic pathway in most organisms which involves de novo…
Q: Will an amino acid be glucogenic or ketogenic if it is catabolized to the following molecules?(a)…
A: Glucogenic amino acids are the amino acids that are converted into glucose through gluconeogenesis…
Q: Most aminotransferases are specific for the keto acid a. a-ketoglutarate b. oxaloacetate c. pyruvate…
A: Transaminases or Aminotransferases Aminotransferases are the enzymes which catalyse the reactions…
Q: Which of the following is incorrect about the conversion of acetyl-CoA (2 C) to malonyl- COA (3 C)?…
A: Acetyl CoA (2C) conversion to Malonyl CoA (3C) is the first step of fatty acid synthesis.
Q: In gluconeogenesis, what are the precursors of glucose? Select all that apply. lactate amino…
A: Gluconeogenesis is a process in which glucose is synthesized from non-carbohydrate precursors. This…
Q: Which of the following is an inhibitor of gluconeogenesis? Group of answer choices: -ATP -ADP…
A: Gluconeogenesis is the process of Synthesis of glucose from lactose, pyruvate, glucogenic aminoacids…
Q: Acetyl-CoA carboxylase is inhibited by A. biotin B. citrate C. acetyl-CoA D.…
A: Acetyl-CoA carboxylase (ACC) catalyzes the carboxylation of acetyl-CoA to form malonyl-CoA, an…
Q: Lysine is degraded to acetoacetyl-CoA then to acetyl-CoA, and is described as a _______ amino…
A: Lysine and arginine are broken down into acetoacetyl CoA and Acetyl CoA respectively. The process…
Q: In the mitochondrion is a short-chain carnitineacyltransferase that can take acetyl groups from…
A: In the intermembrane space of mitochondria, the acyl group is transferred to carnitine by…
Q: What is the consequence of complete inhibition of all mutases in liver cells? a. Liver cannot…
A: A mutase is an isomerase enzyme that catalyses the mobility of a functional group through one…
Q: What enzyme is the point of regulation for fatty acid synthesis in the cytoplasm? Fatty acid…
A: Fatty acids are important micromolecules which combine together to form lipids in plants, animals…
Q: among the amino acids which is directly converted into pyruvate for gluconeogenesis" a. theorine…
A: The synthesis of glucose from noncarbohydrate sources is known as gluconeogenesis. This process can…
Q: Amino acids that degrade yielding acetyl-CoA or acetoacetyl-CoA are referred to as _____________.
A: Amino acids are the monomers for protein synthesis but amino acid degradation transforms the carbon…
Q: All of the following are substrate for gluconeogenesis, except- A. Glucogenic amino acids B. Lactate…
A: Gluconeogenesis is the process generation of glucose from some non carbohydrate substrate.
Q: The acetyl group of acetyl-CoA is derived from the breakdown of lipids, carbohydrates, and certain…
A: Acetyl Co A is a two carbon intermediate produced by the reaction of pyruvate dehydrogenase complex.…
Q: Which of the following is NOT a component of the pyruvate dehydrogenase complex? a. dihydrolipoyl…
A: PDC is a multi-enzyme complex that catalyzes the conversion of pyruvate to acetyl-CoA during…
Q: Three metabolites that can result from the breakdown of the carbon skeleton of amino acids are…
A: Amino acid catabolism is a part of the whole body catabolism. Nitrogen enters the body in a variety…
Q: Which of the following is NOT TRUE about cholesterol biosynthesis?
A: Cholesterol is a form of lipid and is insoluble in water and soluble in organic solvents like…
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- Which one of the following will function to inhibit CPT1? A.palmitoyl-CoA B.citrate C propionyl-CoA D.acetyl-CoA E malonyl-CoAAll of the following classes of enzymes catalyze the Fatty acid synthesis except a. synthetase b. Synthase c. Carboxylase d. DehydrgenWhich of the following is an inhibitor of gluconeogenesis? Group of answer choices: -ATP -ADP -citrate -acetyl CoA
- Which of the following statements about the "central role" of TCA is/are correct? a. Some metabolic intermediates of TCA are used as non-carbohydrate sources for gluconeogenesis. b. β-oxidation of lipids produces acetyl-CoA that can enter TCA. c. All metabolic intermediates in TCA are used in the biosynthesis of amino acids. d. Degraded amino acids are converted to metabolic intermediates of TCA, then to ketone bodies.Amino acids that degrade yielding acetyl-CoA or acetoacetyl-CoA are referred to as _____________.Explain the difference between the glucogenic and ketogenic amino acids? How does the body used them in energy production?
- Degradation of fats as an energy source involves all of the following excepta) β -oxidation.b) acetyl-CoA.c) glycerol.d) lipase.e) transamination.which of the following compounds can serve as a precursor for gluconeogenesis. A) acetate B)acetoacetate C) alanine D) leucine E) palmitateWhat enzyme is inhibited by Acetyl-CoA carboxylase? a)Acetyl-CoA carboxylase b)Citrate lyase c)E3 ubiquitin ligase d)Carnitine acyltransferase I
- Acetyl-CoA carboxylase is inhibited by A. biotin B. citrate C. acetyl-CoA D. palmitateWhy is it important that gluconeogenesis is not the exactreverse of glycolysis?Where does the carbon come from that is used to synthesize ketone bodies? a) Acetyl-CoA generated by decarboxylation of pyruvate b) Acetyl-CoA generated by deamination of amino acids c) Acetyl-CoA generated by beta-oxidation of fatty acids.