Pyruvate is an important intermediate in carbohydrate metabolism. Which of the following is true regarding the fate of pyruvate in muscle cells?
Q: In the human body, under oxygen rich and oxygen poor conditions, respectively, pyruvate is converted…
A: Pyruvate has different fates under oxygen-rich and oxygen-poor conditions.
Q: What type of regulation would be expected when anaerobic metabolism is occurring in the muscle?…
A: At the onset of exercise, the increase in metabolic demand of the muscles is fueled "anaerobic"…
Q: Which of the following enzyme catalyzes the conversion of pyruvate to lactate? O a) Pyruvate…
A: Proper anaerobic conditions allow lactate to be produced from pyruvate. In the aerobic conditions,…
Q: CHOOSE THE CORRECT LETTER What is the product of glucose metabolism in skeletal muscles in aerobic…
A: Glycolysis is the major pathway of glucose metabolism that occurs in cytoplasm followed by link…
Q: Which of the following enzymes CANNOT be found in the skeletal muscle?
A: Glucose-6-phosphatase converts glucose-6-phosphate to glucose. Glycogen synthase is responsible for…
Q: Which of the following molecules controls the metabolic flow through both glycolysis and…
A: You have asked 2 questions. I will answer the 1st question, as per guidelines. Asked : Molecule…
Q: Which one of the following statements regarding Stage II of Catabolism is TRUE? O In Stage III,…
A: Catabolism involves the breakdown of the molecules into a simpler form and involves the release of…
Q: What is the name of the by-product of anaerobic glycolysis that can lead to muscle fatigue and why…
A: A muscle refers to a group of muscle tissue that contracts to generate force. The failure in the…
Q: What is the total ATP produced from complete oxidation of 10 molecules of glucose asumming that the…
A: Glycolysis is the process in which glucose is converted into pyruvate, with the production of ATP,…
Q: . Liver is primarily a gluconeogenic tissue, whereas muscle is primarily glycolytic. Why does this…
A: Gluconeogenesis is a metabolic pathway that results in the generation of glucose from certain…
Q: The glycerol derived from lipolysis of triacylglycerols is converted into glyceraldehyde…
A: Glycolysis is considered as a process in which glucose is converted into pyruvate molecule.
Q: How is it possible that both insulin andepine phrine stimulate muscle glycolysis?
A: Insulin is a peptide hormone secreted by the pancreas while epinephrine (adrenaline) is a…
Q: If the malate-aspartate shuttle is inhibited under aerobic conditions, then lactate production…
A: Energy must be supplied to the cell continuously so that the cell maintains the functions and…
Q: Which reactions in the payoff phase of glycolysis are exergonic at standard conditions? O…
A: Glycolysis is a metabolic pathway where one molecule of glucose is converted into two molecules of…
Q: How do the pathways for the synthesis and breakdown of glycogen differ in liver and muscle? How does…
A: In stressful conditions/fasting/starvation when the blood glucose level is low, some…
Q: How will high concentrations of AMP, citrate and fructose-2, 6-bisphosphate, respectively, tend to…
A: In regulation of glycolysis different factors are involved which affects the rate of glycolysis.
Q: Muscle protein, fat, and glycogen are all reservoirs of energy. In what order are they used during a…
A: Fat metabolism is initiated when triglycerides that are ingested got broken down into small fatty…
Q: Hexokinase is found in almost all animal cells, except the liver and pancreas, while glucokinase is…
A: Hexokinase is the enzyme that has the ability to transfer an inorganic phosphate from the ATP to the…
Q: which of the following is not true for a muscle that is forced to metabolize glucose anaerobically ?…
A: Anaerobic respiration is respiration using electron acceptors other than molecular oxygen.
Q: The disease beriberi, which results from a dietary deficiency of vitamin B1 (thiamine), is…
A: Thiamine: a. Thiamine is a water-soluble vitamin and has a specific coenzyme which is thiamine…
Q: What is the importance of phosphorylation of glycolytic intermediate? and what are the possible…
A: Glycolysis is the anaerobic pathway to degrade the glucose molecule inside the cytoplasm of nearly…
Q: Which of the following is true concerning the function of lipoic acid in pyruvate metabolism? a.…
A: The anaerobic metabolism of glucose in glycolysis forms pyruvate. Gluconeogenesis is the process by…
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: Glycogen is a major energy source for skeletal muscle contraction.
A: Skeletal muscle contraction takes place in our body when our brain recieves a signal leading to…
Q: Which of the following enzymes is responsible for the addition of UDP-glucose to the growing…
A: Glycogenesis is the addition of glucose molecules to glycogen chains for storing purposes. This…
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: The disease beriberi, which results from a dietary deficiency of vitamin B1 (thiamine), is…
A: Macronutrients and micronutrients are two different types of nutrition. Macronutrients include the…
Q: CH3CH2OH + NAD+ --> CH3CHO + NADH +H+ Explain how this reaction inhibits the production of pyruvate…
A: Ethanol is mostly consumed by humans, which gets metabolized readily in the liver. It is generally…
Q: How many ATP equivalents are consumed in the conversion of each of the following to a glucosyl…
A: The free radical structure is univalent and occurs with the removal of the hemiacetal hydroxyl group…
Q: After prolonged exercise the body becomes depleted of glycogen. Which type of diet will lead to a…
A: High fat and high protein diet do not replenish glycogen quickly.
Q: Define Glycolysis and Gluconeogenesis. How GLYCOLYSIS and GLUCONEOGENESIS does reciprocally…
A: Glycolysis means splitting of sugar. It is the process of partial oxidation of glucose to form two…
Q: Pantothenic acid (pantothenate), also known as vitamin Bs, is necessary for the production of…
A: Pantothenic acid, generally known as vitamin B5, is a water-soluble vitamin that serves as a…
Q: What are the three common possible fates for pyruvate produced from glycolysis?
A: Pyruvate is a significant substance compound in biochemistry. It is the yield of the metabolism of…
Q: How does the conversion of pyruvate to lactate take place in muscle?
A: Introduction: Pyruvate formed at the end of glycolysis is reduced to lactic acid under anaerobic…
Q: fatty acid breakdown generates a large amount of acetyl CoA. What will be the effect of fatty acid…
A: The oxidation of fatty acids and glucose provides a huge amount of ATP. The amount of energy…
Q: When undergoing strenuous exercise and the Cori Cycle is functioning, which of the following…
A: The Cori cycle was discovered by Carl Ferdinand Cory and Gerty Theresa Radnitz. This cycle functions…
Q: All the enzymes listed below catalyze a reaction in the skeletal muscle. For an Olympic sprinter,…
A: Sprinters run for short distances at a maximum speed. This requires a lot of energy to be converted…
Q: If glycerol-3-phosphate shuttle is active, calculate the number of ATP produced from the complete…
A: Glycerol-3-phosphate shuttle is the process of regeneration of reducing equivalent NAD+…
Q: Which of the following reactions would be inhibited in the presence of large amounts of an egg white…
A: Biotin binding protein present in egg white is known as Avidin.
Q: What type of regulation would be expected when anaerobic metabolism is occurring in the muscle?…
A: Depending on the need of the body, the fate of intermediates of Glycolysis, gluconeogenesis, Citric…
Q: What should be the net yield of ATP in glycolysis when endogenous glycogen is used? Give answer as a…
A: In the human body, blood glucose is considered the sugar content in the bloodstream, which is being…
Q: Which
A: Anaerobic glycolysis:- All tissues have a requirement for glucose to function normally. Glycolysis…
Q: Which of the following is the most reasonable explanation for why arsenate is detrimental to a…
A: Arsenic is a heavy metal that is predominantly toxic in nature. It can occur in both organic &…
Q: The heart cannot convert lactate back to glucose, as the liver does, but instead uses it as a fuel.…
A: Aerobic respiration splits into three main phases, including glycolysis, Krebs cycle, and ETS…
Q: Glucose is the only carbohydrate that the brain can use for energy. Which pathway is mobilized to…
A: The process of breakdown of glucose to generate the energy molecule adenosine triphosphate (ATP) is…
Q: What is the advantage of converting pyruvate into lactate in skeletal muscle?
A: During strenuous exercise, people breathe rapidly to provide more oxygen to the muscles. The body…
Q: Which one of the following is NOT a metabolic effect of glucagon secretion? Select one: a. Increase…
A: Glucagon is a peptide hormone which is released by alpha islets of langerhans of pancreas into the…
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- The large amount of energy used during aerobic exercise(e.g., running) requires large amounts of oxaloacetate.Explain why acetyl-CoA cannot be used to produceoxaloacetate in this circumstance. What is the sourceof oxaloacetate molecules during aerobic activity?Pyruvate can be converted into two different products depending on whether oxygen is readily available or not. Under conditions of strenuous activity (anaerobic) the product is: аcetyl CoA pyruvate lactate CO2Indicate whether each of the following statements is true or false. If false, correct the statement or provide a brief explanation for why it is false. Malonyl-CoA inhibits carnitine acyltransferase II , thus slowing transport of fatty acyl-CoA into mitochondrial matrix.
- Select the correct answer: Lactate dehydrogenase (LDH) plays an essential role in an exercising muscle, especially when the level of excursion surpasses the ability of circulatory systems ability to supply adequate oxygen. What is the main reason LDH is so important to the muscle under these conditions? A)It removes excess lactic acid from the muscle to create pyruvate. B)It produces NADH for energy while converting pyruvate into lactate. C)It resupplies NAD+ to glyceraldehyde 3-phosphate dehydrogenase. D)It decreases pH thus decreasing the dissociation rate of oxygen from hemoglobin. E)It produces one mole of ATP via substrate level phosphorylation.(a) Hexokinase (HK), phoshofructokinase (PFK) and pyruvate kinase are three regulatory enzymes that regulate metabolic reaction in glycolysis. Elaborate how equilibrium conditions would be controlled by these enzymes. PLEASE FAST AND RIGHT CLEER.Which of the following statements are FALSE? Multiple answers:Multiple answers are accepted for this question Select one or more answers and submit. For keyboard navigation...SHOW MORE a In the TCA Cycle 3 molecules of NADH are produced per molecule of Acetyl-CoA oxidized. b Intracellular concentrations in resting muscle are as follows:Fructose-6-phosphate (1.0 mM)Fructose-(1-6)-bisphosphate (10.0 mM)ADP (0.5 mM)ATP (5.0 mM)Under the above conditions the Phosphofructokinasereaction in muscle is more exergonic than under standard conditions. c The E2 component of the Pyruvate Dehydrogenase complex binds NAD+ in its active site. d If 14CO2 was bubbled through a suspension of liver cells that was undergoing gluconeogenesis from lactate to glucose carbons 1 and 6 of glucose would be radioactive. e When Acetyl-CoA levels exceed the Oxaloacetate supply allosteric activation of Pyruvate Carboxylase results Acetyl-CoA raising the Oxaloacetate levels…
- Answer the following questions in 2-3 sentences only (This is all about Energy System Glycolytic System: Anaerobic-Lactic Acid System (LA). A. What is the name of the by-product of anaerobic glycolysis that can lead to muscle fatigue? B. Why does this by-product cause muscle fatigue?The large amount of energy used during aerobic exercise (e.g., running) requires large amounts of oxaloacetate. Explain why acetyl-CoA cannot be used to produce oxaloacetate in this circumstance. What is the likely source of oxaloacetate molecules during aerobic activity?How many molecules of ATP are released in the overall catabolism of glycerol to acetyl-CoA? How many molecules of ATP are released in the complete catabolism of glycerol to CO2 and H2O? (Hint: Combine pathways ofglycerol to DHAP with glycolysis from DHAP to pyruvate and pyruvate to acetyl-CoA. Remember to account for any NADH and FADH2 produced.)
- Ethanol is oxidized in the liver to form acetate, which is then converted to acetyl-CoA. Determine how many molecules of ATP are produced from 1 mol of ethanol. (Note that 2 mol of NADH are produced when ethanol is oxidized to form acetate.)Place the following molecules in the order in which they appear during aerobic respiration: Citrate G3P Glucose-6-phosphate Pyruvate Fructose-1,6-bisphosphate 1,3-bisphosphoglycerate 3-phosphoglycerate Glucose Acetyl-CoAWhat is the name of the by-product of anaerobic glycolysis that can lead to muscle fatigue and why does this by-product cause muscle fatigue?