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 […]
Tag: CSIR NET Life Science PYQ on OXIDATIVE PHOSPHORYLATION
CSIR NET Life Science PYQ on OXIDATIVE PHOSPHORYLATION
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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 […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Which Condition Supports ATP Synthesis in Isolated Mitochondria: Effects of Uncouplers, Acidification, and Membrane Permeabilizers
20. A practical class was going on where the students were demonstrating ATP synthesis in vitro using active mitochondria. Some students added one of the following to their tubes A. […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Effects of Rotenone on Mitochondrial Electron Transport Chain: ATP Blockade and ROS Generation
19. Rotenone is an inhibitor of the electron transport chain. The addition of rotenone to cells results in which of the following? (1) Generation of mitochondrial reactive oxygen species and […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Understanding Oxygen Consumption Profiles in Mitochondrial Respiration Experiments
18. In a mitochondrial respiration experiment, a researcher observed the following profile of oxygen consumption upon addition of following compounds at times I, II and III. (a) ADP + Pi […]
CSIR NET Life Science Previous Year Questions and Solution on Biochemistry
Why Submitochondrial Particles Facilitate Study of Electron Transport and ATP Synthesis
17. The respiratory chain is relatively inaccessible to experimental manipulation in intact mitochondria. Upon disrupting mitochondria with ultrasound, however, it is possible to isolate functional sub mitochondrial particles, which consist […]
