Release of Acetyl CoA from the ketoacy| CoA is catalyzed by a. Hydratase b.Lipoprotein lipase c. Thiolase d. Ketoacylase An ester of long chain alcohol and fatty acid a. steroids b. glycerophospholipids C. Wax d. trigylcerides Beta oxidation of fatty acids produces 1. NADH 11. FADHY III. Acetyl CoA a. 1 only b. Il only c. Il only d. 1, Il and II
Q: Malonyl-CoA synthesized by the action of acetyl-CoA carboxylase II is primarily used: a. To…
A: Acetyl CoA is produced in mitochondria and cannot leave mitochondria so it combines with…
Q: Glucagon increases blood glucose very quickly by activating phosphorylase. This is very efficient…
A: Blood glucose level is mainly regulated by 3 hormones- Insulin Glucagon Somatostatin Amylin
Q: Leucine and Ilysine are ketogenic amino acids. What does that mean for their metabolism? OA) These…
A: Ketogenic amino acids are the amino acid that can be directly degraded into ketone bodies and…
Q: Select the INCORRECT statement about Glutamate dehydrogenase : a. Catalyzes the removal of NH4+…
A: Enzymes are involved in increasing the rate of a biological reaction by lowering the activation…
Q: During the process of synthesizing fatty acids, the b-hydroxyacyl ACP intermediate ___________.…
A:
Q: Match the fatty acid catabolism reaction to the enzyme responsible. Not all the reactions have to be…
A: In fatty acid catabolism, there are several enzymes involved which helps the cell to break down…
Q: β-oxidation is inhibited by A. high acetyl-CoA levels B. low malonyl-CoA levels C.…
A: Beta-oxidation is the process of fatty acid degradation to remove the fragments of carbon atoms…
Q: Choose A=if statement 1 and statement 2 are both true; B=if statement 1 is true but statement 2 is…
A: Disclaimer: Since you have asked multiple question, we will solve the first question for you. If you…
Q: CO2 is released when A. creating a thioester bond between acetyl-CoA and acyl-carrier protein…
A: Fatty acid biosynthesis occurs in the cytosol. Beta-oxidation occurs in the mitochondrial matrix.…
Q: CHOOSE THE CORRECT LETTER 1.Which of the following enzymes catalyze the reaction involved in the…
A: The TCA cycle or Kreb's cycle occurs only in the presence of oxygen inside the mitochondrial matrix.…
Q: Citrate carries acetyl CoA to the cytosol which is the site of fatty acid biosynthesis. O True O…
A: Fatty acid biosynthesis is the formation of fatty acids from acetyl-CoA and NADPH through the action…
Q: Not all of the acetyl-CoA from the mitochondria is carboxylated to malonyl-CoA because some are used…
A: Mitochondria is the powerhouse of the cell. Acetyl CoA cannot cross the mitochondrial membrane.…
Q: During the process of oxidizing palmitate (C16) for fuel, 3-hydroxypalmitoyl CoA __________. Choose…
A: Fatty acids are generally oxidized by β-oxidation & it occurs in the mitochondrial matrix. Each…
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: The pathway that converts glucose to acetyl-CoA is often referred to as an “aerobic oxidation…
A: glycolysis is anaerobic respiration but it is the first step of aerobic respiration.
Q: Upon considering the complete oxidation of one mole of fatty acyl (CoA) of an arachidic acid (20:0).…
A: Beta-oxidation of fatty acid was the catabolic process of long-chain fatty acid that involves the…
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: (a) Indicate the steps involved in its oxidation to acetyl-CoA and/or other products (NADH, FADH2,…
A: Beta oxidation of FA is a metabolism of FA which is a cyclic process and at each step one…
Q: 3-day -old female newborn with a deficiency of mitochondrial carbamoyl phosphate synthetase develops…
A: Carbamoyl phosphate synthetase is an enzyme which catalyzes the first reaction of the urea cycle.…
Q: Fatty acids are activated to acyl-CoAs and the acyl group is further transferred to carnitine…
A: Membrane transport proteins are the proteins located on the membrane that exhibit wide range of…
Q: Bile salts are responsible for the... A. transport of triacylglycerols to adipocytes. B.…
A: Bile is produced by the liver. Each day liver produces 500 to 600 ml bile. Bile salts are components…
Q: state, which of the following occur(s)? a) insulin stimulation of malonyl CoA formatio
A: The fed state takes place after a meal when the body is starting to digest the food ingested and…
Q: Choose A=if statement 1 and statement 2 are both true; B=if statement 1 is true but statement 2 is…
A: The transamination reaction involves the transfer of an amino group from an amino acid to a keto…
Q: /hen the acetyl-CoA produced during B-oxidation in the liver exceeds the capacity of the citric acid…
A: The oxidation of some amino acids into fatty acids, as well as glycolysis, is the source of acetyl…
Q: The function of the enzyme acyl CoA synthetase is O ATP-dependent activation of fatty acids using…
A: During fatty acid oxidation the free fatty acids that enter the cytosol from the blood cannot pass…
Q: Which of the following lipid metabolism enzymes would be functioning in liver during a fast? Choose…
A: When the quantities of circulating glucose and insulin become low during fasting state, which…
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: A fatty acid (a long straight-chain carboxylic acid with an even number of carbons) is metabolized…
A: Beta-oxidation is a metabolic process that involves multiple steps by which fatty acid molecules are…
Q: CHOOSE THE CORRECT LETTER 1.Stearic acid requires eight cycles of B-oxidation to be completely…
A: Beta-oxidation is a catabolic process in which fatty acid molecules are broken down in the cytosol…
Q: Humans do not undergo net synthesis of carbohydrate from acety COA yet carbons of acetyl COA can be…
A: Amino acids are vital for the nourishment of all organisms. They also play a crucial role in the…
Q: Degradation of fats as an energy source involves all of the following excepta) β -oxidation.b)…
A: Fatty acid metabolism involves various metabolic processes related to fatty acids. Fatty acids are…
Q: The formation of Acetyl-CoA from carbohydrates is less direct than from fat a. True b. False
A: Acetyl-CoA is a type of metabolite that contains acyl group carrier, acetic acid , thiol group and…
Q: c.Acetyl
A: Glycolysis is the common pathway of aerobic as well as anaerobic (Fermentation) breakdown of fat ,…
Q: Give answer of 1,2,3, MCQ's 1. Which of the following statements about delto-ALA (amino amino…
A: 1. Answer: B. It is allosterically activated by heme Explanation: Heme and hemin inhibit ALA…
Q: Malonyl-CoA synthesis A. releases CO2 B. is inhibited by citrate C. requires acyl…
A: Malonyl -CoA is synthesized during fatty acid synthesis by acetyl CoA.
Q: Tomorrow morning, you decide to sprint a quick mile before breakfast. Which enzymes will be actively…
A: Metabolic enzymes are involved in anabolism and catabolism of biomolecule to meet the demand of…
Q: _______________ is an intermediate metabolite linkage between carbohydrate and fat metabolism. A.…
A: ATP is the chief molecule that provides energy when the high energy in the ATP molecules is removed…
Q: When the activated form of alcohol is used to synthesize glycerophospholipids, CDP-alcohol reacts…
A: Glycerophospholipids are fatty acids made up of diglycerides to which a phosphatidyl ester group is…
Q: CHOOSE THE CORRECT LETTER 1. Condensation of acetyl CoA with oxaloacetate is catalyzed by A. citrate…
A: The citric acid cycle involves the oxidation of acetyl CoA to CO2 and H2O. The cycle starts with the…
Q: Statin drugs are used to treat hypercholesterolemia because they a. prevent cholesterol from…
A: Hypercholesterolemia is a condition during which blood has a high level of cholesterol. This is…
Q: Mammals cannot undergo net synthesis of carbohydrate from acetyl-CoA, but the carbons of acetyl-CoA…
A: Glucose is catabolized to generate ATP by respiration. The carbon chain in glucose is oxidized and…
Q: CHOOSE THE CORRECT LETTER. 1. Which of the following molecules is NOT a ketone body?…
A:
Q: The carbon skeleton produced by the lysine deamination can produce: A)Oxaloacetate B)Acetyl-CoA…
A: Amino acids get degraded into glycolytic and TCA cycle intermediates which are further metabolized…
Q: Which of the following statements explains why acetyl-CoA is considered the central molecule of…
A: Introduction: Acetyl-CoA is a membrane-impermeant molecule that contains acetyl-CoA linked to…
Q: When acetyl-CoA containing radioactively labeled carbon atoms is fed to cells, the CO, produced is…
A: Krebs cycle is the cyclic process, occurring in the mitochondrial matrix of living cells. where…
Q: If we label the two carbons composing the acetyl group of acetyl-CoA with 14C, a radioactive isotope…
A: The Krebs cycle is also referred to as the citric acid cycle or TCA (Tricarboxylic acid cycle) and…
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- Consider the synthesis and degradation of tyrosine as shown in Figures 25.37, 25.38, and 25.48 to determine where the carbon atoms in PEP and erythrose-4-P would end up in acetoacetate and fumarate.What might you expect if a mutation caused the ATP-allosteric site on phosphofructokinase to be permanently inactive? a. Less glucose transported into the cell. b. No effect on ATP production. c. Decreased ATP production d. Excessive ATP production.If inhibitor X changes lactase activity to a Vo of 0.111111111111 mM per minute when [S] = 0.40mM, and a Vo of 0.166666666667 mM per minute when [S] = 1.0 mM, calculate the new Vmax.A. 0.10 mM per minuteB. 0.25 mM per minuteC. 0.50 mM per minuteD. 1.0 mM per minuteE. 2.0 mM per minute
- The interconverison of DHAP and GAP greatly favors the formation of DHAP at equilibirum. Yet the conversion of DHAP by triose phosphate isomerase proceeds readily. Why?Fatty acids are stored in adipose tissue, as triacylglycerol (TAG) forms. TAGs are degraded as glycerol and fatty acids where energy is required. Based on that knowledge explain: a) How these products are used in the adipose, liver, and other tissue? b)Why glycerol can not be metabolized in adipose tissue?Which of the following statements is/are TRUE about the PPP? A. Most active in cells where lipids are synthesized. B. Reactions involved are oxidative and non-oxidative. C. Also called the hexose monophosphate shunt pathway. D. Occurs in the cytosol.
- Which of these is associated with production of ATP during glycolysis? (Select all that apply) a) Conversion of 1,3-BPG to 3PG b) Conversion of 1,3-BPG to 2,3-BPG c) Conversion of PEP to pyruvate d) Conversion of 2,3-BPG to 2PG e) Phosphorylation of glucoseIn a Lineweaver-Burk graph, the lines representing the uninhibited and inhibited enzyme catalyzed reaction meet each other on the x-axis. The type of inhibition which is occurring is: a) competitive b) noncompetitive c) uncompetitive d) allosteric CO2 exerts direct activity upon hemoglobin by: a) blocking oxygen from binding to the heme group b) displacing BPG from the central cavity c) oxidizing Fe+2 to Fe+3 which does not bind oxygen d) forming an N-terminal carbamate which favors the T-state The dominant motif found in hemoglobin and myoglobin is: a) helix-turn-helix b) twisted beta sheet c) beta barrel d) random coil Which of these is an ketohexose? a) fructose b) glucose c) ribose d) erythrose Which of these is a constitutional isomer of d-glucose? a) fructose b) galactose c) l-glucose d) ribose Which of these is an enantiomer of d-glucose? a) d-fructose b) d- galactose c) l-glucose d) d-ribose Which of these is a diastereomer of…If you fed a mouse a diet made up of exclusively Leucine, the mouse would eventually: A、Undergo extensive gluconeogenesis B、Enter ketosis C、Have a buildup of α-Ketoglutarate D、gain weight E、have a buildup of succinyl-CoA
- Glucosamine is a common compound that inhibits hexokinase action (the transfer of a phosphate group to glucose during glycolysis). A) Describe the consequences of glucosamine exposure on cellular respiration. B) Is glucosamine exposure fatal? Why or why not?The pentose phosphate pathway is an alternative pathway of glucose oxidation.(a). Give the two main products of this pathway.(b). Name the enzyme that controls this pathway. The deficiency of this enzyme is sometimes inherited from the parents. What do these patients suffer from?(c). How is this pathway related to nucleotide metabolism?. Students carry out a laboratory experiment with avidin (a protein in eg white) having a very high aflinity for biotin enzymes. Which enzyme of glucose metabolism would be inhibited by the addition of avidin to a cell homogenate? For answer: a) draw a reaction that would be blocked by the addition of avidin to a cell homogenate; b) write a diagram of the carbohydrate metabolism in which this reaction takes place.