In mature erythrocytes, the end-product of glycolysis that contains the carbons of glucose is: (1) ethanol (2) pyruvate (3) acetaldehyde (4) lactate Mature erythrocytes (red blood cells) have a unique […]
Tag: csir pyq biochemistry
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CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
The Major Role of 2,3-Bisphosphoglycerate (2,3-BPG) in Red Blood Cells: Regulating Hemoglobin’s Oxygen Affinity
The major role of 2,3 BPG formed during glycolysis in RBC is for hemoglobin is (1) Increasing affinity for oxygen (2) Decreasing affinity for oxygen (3) Increasing affinity for CO2 […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
The Role of Bisphosphoglycerate Mutase in Erythrocyte Glycolysis: Bypassing ATP Formation Steps
9. Which one of the following enzymes present in erythrocytes helps bypass the first step of ATP formation in glycolysis? (1) Bisphosphoglycerate mutase (2) Phosphoglycerate kinase (3) Glyceraldehyde 3-phosphate dehydrogenase […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Allosteric Regulation of Pyruvate Kinase: Understanding Key Activators and Inhibitors
The following are the statements about pyruvate kinase (PK). A. ATP is an allosteric inhibitor of PK B. Fructose 1,6 bisphosphate is an activator of PK C. ADP is an […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Effect of Mutation Causing Loss of ATP Allosteric Inhibition on Phosphofructokinase-1 (PFK-1) Activity
Which one of the following correctly describes the effect of a mutation in phosphofructokinase (PFK), that leads only to the loss of allosteric regulation by ATP? (1) Decrease in the […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
How ATP Allosterically Inhibits Phosphofructokinase-1 (PFK-1): Key Insights into Glycolysis Regulation
Phosopho fructokinase-l (PFK-1) is allosterically inhibited by (1) ATP (2) ADP (3) AMP (4) Fructose-6-P Phosphofructokinase-1 (PFK-1) is a pivotal enzyme in the glycolytic pathway, often described as the “rate-limiting” […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Understanding Key Biochemical Statements: TCA Cycle, Amino Acids, and Metabolic Pathways Explained
Given below are statements that may or may not be correct. A. Fructose 2, 6- biphosphate is an allosteric inhibitor of phosphofructokinase-l. B. The TCA cycle intermediates, succinate and oxaloacetate […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Activation of Phosphofructokinase in Glycolysis: The Role of Fructose 2,6-Bisphosphate and Cellular Energy Status
Phosphofructokinase catalyses one of the regulatory steps in glycolysis. Which one of the following metabolic changes leads to the activation of phosphofructokinase? (1) Increased ATP concentration (2) Decreased AMP concentration […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Effect of Sudden Increase in ATP and Citrate Levels on Glycolysis in Erythrocytes
What is the effect of sudden increase in the levels of ATP and citrate on an erythrocyte undergoing glycolysis? (1) It inhibits glycolysis. (2) It stimulates glycolysis. (3) The rate […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
How Do Red Blood Cells Obtain Their Energy? Exploring the Role of Anaerobic Glycolysis
2.RBC obtain their energy from- (1) Mitochondria (2) Fatty acid oxidation (3) Anaerobic glycolysis (4) Glyoxylate cycle How Do Red Blood Cells Obtain Their Energy? Exploring the Role of Anaerobic […]
