Concerning the use of pyruvate when ratio of NADH/NAD+ is low, what is the fate of the carbon labeled in pyruvate when metabolized under these conditions? a) Production of glucose b) Oxidation to CO2 via the TCA cycle c) Conversion to pyruvate to generate oxaloacetate to move electrons to the cytosol via the malate shuttle d) Pyruvate is never metabolized by the cell, instead pyruvate is converted to lactate and solely exported for the Cori cycle and dependent on the liver to recycle the carbon skeleton

Q: Assume that the 2nd carbon atom of pyruvate is labeled with C14 and then the labeled pyruvate is…

A: Introduction : The term "metabolism" is directed to all the chemical reactions that occur in an…

Q: Per NADH consumed by Complex I, indicate the number for each, AS those reducing equivalents flow…

A: The electron transport chain is a series of electron carriers through which the electrons are…

Q: Which of the following is likely to happen in a muscle cell in an anaerobic environment?   Question…

A: During a glycolytic pathway, a glucose molecule is enzymtically degraded, producing either two…

Q: The true statement is A) O Fermentation is anaerobic respiration. B) O The oxygen you inhale is…

A: Fermentation is an anaerobic process.

Q: In the liver, what is the major regulation that dictates fate of pyruvate vs lactate? (This can tie…

A: Pyruvate that is produced as the end product of glycolytic pathway is converted into acetyl CoA…

Q: The PDH complex is a logical point of regulation in metabolism, as it links two major catabolic…

A: Cellular respiration is a collection of three metabolic pathways that generate ATP the energy…

Q: Which of the following citric acid cycle enzymes catalyzes substrate-level phosphorylation

A: The citric acid cycle is also known as the tricarboxylic acid cycle or the Krebs cycle. It is a…

Q: A) Consider what would happen if you added any of the citric acid cycle intermediiates: would the…

A: There are several catabolic pathways in the citric acid cycle. Most of these reactions add…

Q: A molecule which stimulates glycolysis in liver tissue, but inhibits gluconeogenesis is a)…

A: The molecule which stimulates glycolysis in liver tissue, but inhibits gluconeogenesis is fructose…

Q: Anaerobic respiration is different from aerobic respiration in that...  a) in anaerobic respiration…

A: Cellular respiration is a metabolic process occurring inside cells of the organisms to convert…

Q: Where is the labeled carbomn found when the folliowing molecules are added to a cell carrying out…

A: Palmitate synthase is the enzyme complex that synthesizes the 16 carbon long saturated fatty acid…

Q: which of the following glycolytic reactions is an oxidation? a) G3P to 1,3-BPG b) PEP to Pyr…

A: Glycolysis is an oxidative process in which one mole of glucose is partially oxidized into the two…

Q: Fermentation can most accurately be described by which of these?   a) The reoxidation of NADH by…

A: Understanding the accurate description of fermentation is crucial in comprehending the metabolic…

Q: Q cycle in detail providing the names of electron acceptors and donors.

A: 1. A) Complex lll of the electron transport chain, also known as Q-cytochrome c oxidoreductase or…

Q: What does pyruvate oxidation entail? a) the formation of NADH b) coenzyme A c) the release of carbon…

A: Pyruate is the end product of glycolysis. It is a three carbon molecule. It undergoes oxidation and…

Q: What is the first step in the payoff phase of glycolysis? answer choices A.)Oxidation of…

A: The glycolysis process leads to the breakdown of a six-carbon glucose molecule into 2 molecules of…

Q: What is the direct mechanism of ATP synthesis during the electron transport phase of cellular…

A: In a cellular respiration, glucose molecule is broken down to get carbon-dioxide and water. Some of…

Q: Which of these is associated with production of ATP during glycolysis? (Select all that apply) a)…

A: Glycolysis is a pathway which breaks down the glucose (6C) into pyruvate (3C) and generates energy.…

Q: 5. a) The cell creates molecules of NADH and FADH2 to use in the electron transport chain as they…

A: Mitochondria are defined as membrane-bound cell organelles that will generate or produce most of the…

Q: In the TCA cycle, which of the following combines with Acetyl CoA to form a 6 carbon compound?…

A: The human body needs energy in the form of ATP to fuel the cells for regular functioning. ATP is…

Q: What are the primary metabolic fates of pyruvate? OA) Ethanol. OB) Lactate. C) Acetyl CoA. OD) All…

A: Pyruvate is the conjugate base of pyruvic acid that is the simplest alpha-keto acids. It is a key…

Q: Glycolysis and Gluconeogenesis are regulated through differential regulation a) What does…

A: Glycolysis and Gluconeogenesis are 2 metabolic pathways that run in opposite directions, with…

Q: his question is about 16 carbon fatty acid A) what are the end procuts of the eight cycles of beta…

A: Introduction: A) A 16 carbon fatty acid will undergo 7 cycles of beta-oxidation to produce 8…

Q: The oxygen (O2) consumed during aerobic cellular respiration is involved directly in which process…

A: Cellular respiration is a series of metabolic events and activities that occur in organisms' cells…

Q: The key regulatory enzymes in glycolysis are: A) hexokinase, phosphofructokinase, and pyruvate…

A: In the anaerobic process of glycolysis, one glucose molecule is transformed into two pyruvate…

Q: Which of the following enzymes are involved in gluconeogenesis ? a) Pyruvate carboxylase b)…

A: Gluconeogenesis is the pathway of formation of glucose from glucogenic amino acids with the help of…

Q: 4. Metabolic products can enter the glycolytic cycle at several entry points. a) How many net…

A: Aerobic and anaerobic respiration are processes that both begin with glycolysis, a process of…

Q: Which enzyme involved in the TCA cycle produces very similar outcomes compared to pyruvate…

A: The citric acid cycle is also known as the Krebs cycle or the tricarboxylic acid cycle. It is a…

Q: he immediate precursor to acetyl–CoA from glycolysis is pyruvate. a) Write the pathway (not the…

A: The process of breakdown of glucose into pyruvate is known as glycolysis during which chemical…

Q: Which of the following is true of the steps of glycolysis which yield pyruvate as the end product?…

A: Those chemical reactions that occur within the living body for the formation of energy in the form…

Q: For cells that are capable of aerobic cellular respiration and fermentation, such as yeast cells,…

A: Introduction  The Process Through Which Organisms Use Oxygen To Break Down Food Molecules In Order…

Q: two of the reduced electron carriers in the citric acid cycle come directly from a) isomerization…

A: Glucose is the main source of energy generation in living cells. Under aerobic conditions glucose…

Q: Metabolic process in which hexose metabolism occurs? Amount of steps?   Since this metabolic…

A: Since they can occur without the addition of energy, exergonic reactions are also known as…

Q: Which of the following statements regarding the glycolysis pathway is FALSE? A) O Two pyruvate…

A: Glycolysis is the process by which gkucose is partially oxidized into pyruvate acid . It is first…

Q: The two electron carriers involved in the redox reactions of cellular respiration are NAD+ and FAD.…

A: Oxidation- reduction reaction is also called as redox reactions. It is a type of chemical reaction…

Q: Which of the following statements is correct? A) NAD+ is reduced to NADH during glycolysis,…

A: NADH is an electron carrier used in the process of cellular respiration. The oxidized form, NAD+,…