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 […]
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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 […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Which Cells or Organs Use Only Glucose as a Fuel Source? Understanding Red Blood Cell Metabolism
Which of the following cell or organ can only use glucose as a fuel source? (1) brain (2) kidney (3) red blood cells (4) heart Energy metabolism varies widely […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Why the F1 Subunit of ATP Synthase Hydrolyzes ATP in Solution but Synthesizes ATP When Membrane-Bound
26. The F1 subunit of F0F1 ATP synthase synthesizes ATP from ADP in the mitochondrial inner membrane. Purified F1 subunit hydrolyses ATP to ADP. Which one of the following reasons […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Understanding the Most Oxidized Form of Carbon: Comparing HCOOH, HCHO, CH3OH, and CO2
25. Which of the following represents the most oxidized form of carbon? (1) HCOOH (2) HCHO (3) CH3OH (4) CO2 Carbon exhibits a range of oxidation […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Antimycin A and Its Inhibition of the Mitochondrial Electron Transport Chain: Focus on Complex III
24. At which one of the following electron transport chain complexes does Antimycin A typically inhibit the respiratory chain? (1) Complex I (2) Complex II (3) Complex III (4) Complex […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Why Cyanide Is Toxic: Binding to Cytochrome c Oxidase and Inhibition of Electron Transport
23. Cyanide, a chemical warfare agent, is toxic because it: A. binds to the heme a3 in mitochondrial cytochrome C oxidase (in complex IV) B. inhibits electron transport and thus […]
CSIR NET Life Science Previous Year Questions and Solution on DNA REPLICATION
Matching Chemical Inhibitors of Oxidative Phosphorylation with Their Modes of Action
22. Match the chemical agents that interfere in oxidative phosphorylation process with their respective mode of action. Column I Column II (A) Antimycin A (i) Inhibits Fo component of ATP […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Clarifying Misconceptions About Brown Fat: Which Statement Is NOT Correct?
21. Which statement is NOT correct regarding brown fat? (1) It is present in negligible amount in new born baby (2) It produces little ATP (3) It produces more heat […]
