What happens when NADPH concentration is high? The nonoxidative phase of the pentose phosphate pathway halts and ribose 5-phosphate enters gluconeogenesis. The nonoxidative phase of the pentose phosphate pathway halts and ribose 5-phosphate enters DNA synthesis. The oxidative phase of the pentose phosphate pathway halts and glucose 6-phosphate converts to pentose phosphates. The pentose phosphate pathway halts and glucose 6-phosphate enters glycolysis. The pentose phosphate pathway activates and glucose 6-phosphate converts to pentose phosphates.

Q: the reduced electron carrier that enters Complex II of the electron transport chain, downstream of…

A: Energy is needed by the cell to do work. The energy is produced by oxidizing the glucose molecules…

Q: ATP levels are high in the liver, NADPH levels are low, but fat biosynthesis needs to happen. What…

A: The pentose phosphate pathway (PPP) branches from glucose 6-phosphate (G6P), produces NADPH and…

Q: What is pyruvate converted into for the two fermentation types?   lactate (lactic acid) and ethyl…

A: Fermentation is a metabolic process that produces chemical changes in organic substrates through the…

Q: Consider the function of the cofactor FAD. Which of the following makes it unique (different) from…

A: Our body is composed of numerous cells, tissues, organs, hormones, and enzymes. Enzymes are protein…

Q: What is a justification for a hypothesis stating that copper ion is the necessary cofactor in the…

A: There are various lines of observational data that may be used to support the claim that the copper…

Q: How many ATPs—total and net—are produced from breaking down one molecule of glucose in glycolysis?

A: Introduction :- Glycolysis is the first step in the breakdown of glucose to extract energy for…

Q: Why is it not to the cell's advantage to simply make more NAD so that the regeneration would not be…

A: NAD is an electron carrier. It carries electrons from substrate oxidation to the ETC to generate a…

Q: What is the role of the prep phase in glycolysis? To convert G3P molecules into pyruvate and produce…

A: In glycolysis, the glucose molecules are broken down into two molecules of pyruvate along with the…

Q: What would be the effect on ATP and NADH production (how many ATP and NADH could be produced from…

A: Pyruvate is a molecule that is produced during glycolysis, the initial stage of cellular…

Q: , NADH is produced. The citric acid cycle also produces FADH2. What is the purpose of these…

A: During Glycolysis, pyruvate oxidation and citric acid cycle NADH produced and FADH2 produced during…

Q: which enzyme uses ATP to phosphorylate a substrate during gluconeogenesis? -Hexokinase -…

A: Gluconeogenesis  is a metabolic pathway that results in the generation of glucose from certain…

Q: Which of the following enzymes consumes one molecule of NADH, during anaerobic fermentation in…

A: Anaerobic fermentation is a metabolic process that converts carbohydrates to organic acids, gases,…

Q: What is something that allosteric effectors that alter the rate of catabolic or anabolic pathways…

A: Enzymes are biological catalysts that alter the rate of biochemical reactions. Allosteric enzymes…

Q: When the cell needs both NADPH and ATP, the most likely utilization of the Pentose Phosphate Pathway…

A: The pentose phosphate pathway synthesizes NADPH and pentose sugars required by the cells. The…

Q: What are ways in which cells can regenerate cytosolic NAD+? Conversion of Lactate to Pyruvate…

A: The coenzyme NAD+ is the most important oxidising reducing agent in the cell. It acts as electron…

Q: What enzymes from the citric acid cycle that are allosterically regulated by ATP and/or NADH?  What…

A: TCA cycle: - In this cycle, the activated acetate derived from pyruvate undergoes stepwise oxidation…

Q: What is the term for the process whereby the synthesis of ATP is coupled to the conversion of NADH…

A: Cellular respiration is a series of metabolic reactions that occur within cells to convert…

Q: A more recent role of E2 within the pyruvate dehydrogenase complex involves localization to the…

A: Pyruvate dehydrogenase complex (PDC): The pyruvate dehydrogenase complex (PDC) is a multi-enzyme…

Q: Which of the following statements is falseconcerning acetyl CoA carboxylase (ACC)? ACC is more…

A: Acetyl CoA carboxylase (ACC) is an enzyme involved in the synthesis of fatty acids. It generates the…

Q: Which NUMBER(S) indicate NADH production in the overall process? *

A: Ans- In the given question, the figure represent glycolysis cycle. Glycolysis is a series of…

Q: The signaling pathway in mammalian cells that senses low oxygen inhibits the activity of the…

A: Animal cells produce ATP by cellular respiration, whereas plant cells produce carbohydrates through…

Q: If a cell is fed a large supply of fatty acids, which outcome can be expected? Glycolysis will be…

A: Catabolism and anabolism are the two major chemical reactions that take place in living cells for…

Q: Outline a metabolic pathway for the metabolism of two aspartic acids to CO2 and Urea. What is the…

A: Introduction A Metabolic Pathway Is A Series Of Activities Or Interactions Between Genes And Their…

Q: Which of the following is(are) consumed in the process of converting Elycerol to dihydroxyacetone…

A: Cellular respiration is a catabolic pathway of the process of metabolism, where a series of chemical…

Q: The synthesis of acetyl-CoA from pyruvic acid serves as a bridge between which of the following…

A: Aerobic respiration occurs in presence of oxygen. It includes glycolysis, citric acid cycle and…

Q: In the second reaction of the pentose phosphate pathway that generates NADPH, What are the…

A: The pentose phosphate pathway also called the hexose monophosphate shunt is an alternative pathway…

Q: Consider the function of the cofactor FAD. Which of the following makes it unique (different) from…

A: FAD stands for flavin adenine dinucleotide in its oxidised condition. FADH2 is the name given to it…

Q: Citrate synthase is inhibited by: NAD+ ADP NADH oxleoacetate All of the above None of the above

A: Explanation Glycolysis is a process by which glucose breaks into pyruvate and gives energy in the…

Q: Select all false statements about pentose phosphate pathway. Glucose-6-phosphate is common to…

A: Pentose phosphate pathway is also called as the hexose monophosphate pathway. It is an alternative…

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.