10 public questions tagged with this topic.
α-Ketoglutaric acid is an intermediate of the Krebs cycle that serves as a precursor for amino acid synthesis.
Ref: NCERT Class 11 Biology Chapter 12: Respiration in Plants Krebs Cycle - TCA Cycle - Tricarboxylic Acid Cycle
NAD⁺ is reduced to NADH during glycolysis and the Krebs cycle, playing a crucial role in cellular respiration.
Ref: NCERT Class 11 Biology Chapter 12: Respiration in Plants Krebs Cycle - TCA Cycle - Tricarboxylic Acid Cycle
Oxaloacetate is regenerated at the end of the Krebs cycle to continue the cycle.
Ref: NCERT Class 11 Biology Chapter 12: Respiration in Plants Krebs Cycle - TCA Cycle - Tricarboxylic Acid Cycle
The Krebs cycle releases carbon dioxide as a byproduct of the decarboxylation reactions.
Ref: NCERT Class 11 Biology Chapter 12: Respiration in Plants Krebs Cycle - TCA Cycle - Tricarboxylic Acid Cycle
Succinate dehydrogenase catalyzes the oxidation of succinate to fumarate, producing FADH₂.
Ref: NCERT Class 11 Biology Chapter 12: Respiration in Plants Krebs Cycle - TCA Cycle - Tricarboxylic Acid Cycle
Guanylyl cyclase, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.
Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)
DAG and IP₃, is consistent with established principles of cell signaling, receptor pharmacology and cellular regulation. Experimental measurements of binding parameters, genetic loss-of-function studies and pharmacological interventions all converge on the same interpretation. Related options address neighboring concepts but do not satisfy the precise criterion stated in the question.
Ref: NCERT Biology Class 11–12 Alberts et al Molecular Biology of the Cell Lodish et al, Molecular Cell Biology Cooper & Hausman, The Cell Abbas et al., Cellular and Molecular Immunology (for immunology sections)
The correct answer is B: Fe³⁺. In Blood and their Component, this idea is central because it matches how the body actually works in everyday teaching examples. Put simply, Fe³⁺ is the option that correctly names the structure, process, or principle asked for in Blood and their Component. That is why Fe³⁺ is the option that holds up when you check it against basic physiology. When you revise, say the answer out loud with one short reason attached; that sticks better than rote lists. Remember that physiology questions reward precise language: name the process, the location, and the outcome, then match that to the option text.
Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.
