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.

Q: What is the total number of ATPs resulting from the second stage of carbohydrate metabolism? What…

A: Adenosine triphosphate (in short, ATP) is termed as the cell’s energy currency. It consists of three…

Q: Which of the following enzymes are activated after insulin binds to its receptor? (select all that…

A: Insulin is classied as one of the major hormone that plays a major role in controlling…

Q: Which steps of aerobic metabolism of pyruvate through the citric acid cycle are control points?

A: Cellular respiration can be defined as the series of metabolic reactions that occur in the living…

Q: What is the fate of hydrogen atoms removed from glucose during glycolysis when oxygen is present in…

A: Carbohydrates: It is the energy source of the body represented by the formula (CH2O)n, where n is…

Q: Which of the following would not be considered a reason for the decline in fat oxidation with…

A: Beta oxidation is a catabolic process that occurs in both prokaryotes and eukaryotes to break fatty…

Q: After pyruvate enters the mitochondria, what would be the maximum number of ATP molecules produced…

A: Pyruvate oxidation is the most important step in the cellular respiration. It acts as a key…

Q: Administration of insulin decreases the blood concentration of ketone bodies in patients with…

A: The cells inside the body of people who are diabetic are unable to uptake glucose from blood.…

Q: What are the three fates of the pyruvate and list which one is aerobic or anaerobic

A: Glucose is converted into pyruvate through the process of glycolysis. Since pyruvate is the major…

Q: In the past, it was believed that lactic acid accumulated in the muscles of tracking athletes as a…

A: Pls refer below for the solution :

Q: Under what conditions will lactic acid accumulate in skeletal muscle? Select one: A. When NADH is…

A: A reduction in muscle force generated over time or as a result of pathological conditions is…

Q: CHOOSE THE CORRECT LETTER Lactate produces pyruvate through anaerobic gluconeogenesis. Lactate is…

A: Lactate is the end product of anaerobic respiration in human body. Lactate is produced in muscles…

Q: How many carbon dioxide molecules are released after each cycle of the Krebs cycle? For a single…

A: The Krebs cycle releases two carbon dioxide molecules for each cycle it completes

Q: Select the correct answer to fill in the blank. If glucose was no longer available, Glycolysis would…

A: Pyruvate processing is conversion of pyruvate to acetyl CoA. Acetyl CoA is a molecule that is…

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: Although adults synthesize large amounts of ATP daily, their body weight, structure, and composition…

A: ATP : It is an energy-carrying molecule found in the cells of all living things. It captures…

Q: If glycogen is depleted in the liver, which of the following is also occurring? Group of answer…

A: This phenomenon is stated as "hitting the wall". Glycogen depletion may be forestalled in 3 viable…

Q: Which of the following statements about Pyruvate Kinase is true? a. Pyruvate kinase is activated by…

A: Pyruvate is a three-carbon molecule that helps in transporting carbon atoms to mitochondria. It is…

Q: Describe the two mechanisms by which muscle glycogen is broken down to glucose (glycogenolysis) for…

A: The question is to discuss two mechanisms by which muscle glycogen is broken down to glucose…

Q: What would be the ATP yield per molecule of glucose in the muscle if glycogen were the source of the…

A: When the body runs out of glucose which is the most staple substrate for energy production, stored…

Q: Which of the following correctly describes ATP usage in gluconeogenesis and glycolysis? O ATP is…

A: The metabolic pathway can be defined as the combination of chemical reactions occurring in a…

Q: What is the main source during aerobic exercises? What is the benefit of aerobic respiration in the…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Pyruvate is an important intermediate in carbohydrate metabolism. Which of the following is true…

A: Glycolysis is the enzymatic breakdown of a carbohydrate such as glucose by way of phosphate…

Q: As early as the 1930s, it was known that frog muscles could still contract when glycolysis was…

A: carbohydrate metabolism was the fundamental biochemical process which supply energy continuous to…

Q: What are the products of glycolysis (from one glucose molecule)? What happens with NADH under…

A: During glycolysis one glucose molecule produces 4 ATP , 2NADH and 2 pyruvate molecules.

Q: How many ATP equivalents would be generated or used by the metabolism of butanoic acid to carbon…

A: Carbohydrates are the chief source of energy in the body. Glucose is the simplest and major…

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: Why is phosphofructokinase rather than hexokinase the pacemaker of glycolysis?

A: The enzyme phosphofructokinase is an important regulatory site of the glycolytic pathway where it…

Q: race the fate of hydrogens removed from glucose during glycolysis when oxygen is present in muscle…

A: Glycolysis is a cytoplasmic pathway that breaks down glucose into two three-carbon compounds and…

Q: How many molecules of ATP are made during lactic acid fermentation?  How does this compare to the…

A: Respiration can be described as the mechanism by which the living organisms produce energy.…

Q: a. List two compounds that can be produced from pyruvate in skeletal muscle b. What are the enzymes…

A: The pyruvate or pyruvic acid is the end product of glycolysis which is the first step of cellular…

Q: How many ATP are produced from the complete degradation of G3P using glycerol- three phosphate…

A: The glycerol-3-phosphate shuttle is a mechanism that regenerates NAD+ from NADH that is a by-product…

Q: How is the malate shuttle used in the liver to increase the number of ATP generated from glycolysis?…

A: Malate aspartate shuttle is used to transfer reducing products with in the mitochondria and…

Q: What is the physiological significance of aerobic cellular respiration?

A: Aerobic respiration is the process in which organisms utilizes oxygen for conversion of  fuels such…

Q: Identify the following terms This type of lipid is a complex mixture of esters of long-chain…

A: Lipids are non-polar biomolecules, which are not true polymers. Lipids are classified as simple…

Q: Which of the following statements is true? a) High insulin/glucagon ratio activates lipolysis in…

A: Lipolysis is the process in which the lipid, triacylglycerol is broken down into its components…

Q: Which of the following is the correct summary of the anaerobic breakdown of glucose in the skeletal…

A: Glucose - Glucose is a type of monosaccharide. It is the most abundant monosaccharide. It is a type…

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: Identify the conversion which is not involved in glycolysis. a.Glucose to glucose 6-phosphate by…

A: The glycolysis is a ten-step process in which glucose is converted into the molecule pyruvate. It…

Q: What are the health implications of a deficiency of the enzyme, pyruvate decarboxylase?

A: The pyruvate decarboxylase enzyme is involved in the conversion of pyruvate to acetaldehyde. This…

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: What is the net gain of ATP and NADH for each glucose molecule undergoing glycolysis?

A: Glycolysis is the first metabolic reaction that occurs during cellular respiration and produces ATP…

Q: Explain in detail why fast-twitch fibers will use anaerobic respiration rather than aerobic…

A: Fast-twitch fibers are used for rapid bursts or intense movements while slow-twitch fibers are used…

Q: In absence of oxygen, pyruvate is converted into lactate in muscle because

A: Anaerobic glycolysis is the process where glucose is converted to lactate when sufficient amounts of…

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: a. List two compounds that can be produced from pyruvate in skeletal muscle

A: Respiration is a catabolic, biochemical process, that involves the stepwise, complete or incomplete…

Q: What are the diseases a-ketoglutarate dehydrogenase deficiency, succinate dehydrogenase deficiency,…

A: ketoglutarate dehydrogenase:  This is the enzyme that catalyzes the conversion of…

Q: True or false: Consider a liver cell balancing the metabolic allocations under starving conditions.…

A: After about 3 days of prolonged starvation liver starts producing Ketone bodies in the form of…

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…

Metabolic pathways

Metabolism is defined as the group of life-supporting, enzyme-mediated chemical reactions in organisms. A metabolic pathway is a set of these chemical reactions that involve anabolism (synthesis of complex biomolecules) and catabolism (breakdown of biomolecules into small molecules) that occur inside a cell. Metabolites are the reacting substances, products, and intermediate substances of an enzymatic process that are altered by a series of chemical events catalyzed by enzymes.