Pyruvate can be allowed to decarboxylate into acetyl CoA and CO2 by pyruvate dehydrogenase complex. For evolution of 14C labeled carbon in CO2, which carbon atom must be radiolabeled in […]
Tag: csir pyq biochemistry
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CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
The Key Compound Linking Glycolysis and the Krebs Cycle: Understanding the Role of Acetyl CoA
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 […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
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 […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
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) […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
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 […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
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 […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
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 […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
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 […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
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 […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
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 […]
