Among the following which compound links glycolysis and Kreb’s cycle (1) Acetyl Co A (2) Pyruvic Acid (3) Glucose (4) Oxaloacetic acid Cellular respiration involves a series of metabolic pathways […]
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Key Steps and Enzymatic Functions in the Conversion of Pyruvate to Acetyl-CoA
The following statements are made regarding conversion of pyruvate to acetyl- CoA going from glycolysis to citric acid cycle: A. Oxidation of pyruvate to acetyl-CoA is reversible. B. Pyruvate is […]
Components of the Pyruvate Dehydrogenase Complex: Identifying the Enzymes in the Linkage Step Between Glycolysis and the TCA Cycle
Which one of the following enzymes is NOT a part of pyruvate dehydrogenase enzyme complex in linkage step of glycolysis and TCA cycle? (1) Pyruvate dehydrogenase. (2) Dihydrolipoyl transferase. (3) […]
Complete Oxidation of Glucose: The Role of the TCA Cycle in Maximum Energy Yield
There is compete oxidation and maximum gain of energy, if glucose which has converted into pyruvate during glycolysis enters (1) TCA cycle (2) Gluconeogenesis (3) Beta oxidation (4) Pentose phosphate […]
Ribose-5-Phosphate: The Essential Precursor for Nucleotide Synthesis Produced by the Pentose Phosphate Pathway
Ribose-5-Phosphate is precursor for ribose sugar in DNA and RNA and is obtained from (1) Pentose phosphate pathway (2) Kreb cycle (3) Glycolysis (4) Amino acids Ribose-5-phosphate (R5P) is a […]
Understanding the Metabolic Roles of Glycogen, Pyruvate, and Ribose 5-Phosphate in Cellular Reactions
What are A, B and C in the following reactions? (1) Pyruvate, ribose 5-phosphate, glycogen. (2) Ribose 5-phosphate, glycogen, pyruvate. (3) Glycogen, pyruvate, ribose 5-phosphate. (4) Glycogen, citrate, ribose 5-phosphate […]
Where Does Efficient Conversion of Fructose to Fructose-6-Phosphate by Fructokinase Occur?
The efficient conversion of Fructose to Fructose-6 Phosphate by fructo kinase occurs in (1) Liver (2) Muscles (3) Adipose Tissue (4) Intestine Fructose Metabolism Overview Fructose enters cells and is […]
The Phosphoketolase Pathway: The Key Cycle in Heterolactic Fermentation
Which cycle has been used in hetero lactic fermentation? (1) Entner—Doudoroff pathway (2) Phosphoketolase Pathway (3) Pentose Phosphate Pathway (4) Glycolate pathway Heterolactic fermentation is a distinctive metabolic process carried […]
Factors Increasing Glucose-1-Phosphate Levels in Liver Cells: Glycogen Breakdown and Glycogenesis
Glucose-1-P level can increase in liver cell due to (1) Increased glycogen breakdown (2) Reduced glycogenesis (3) Both (4) Increased glycolysis What Is Glucose-1-Phosphate? Glucose-1-phosphate is a phosphorylated sugar that […]
Identifying the False Statement About Glycolysis: NADH, FADH2, and Pyruvate Formation Explained
Which statement is FALSE about glycolysis? (1) 2 molecules of NADH+H is formed per glucose (2) 1 molecule of FADH2 is formed per glucose (3) Electron are released during oxidation […]


