4 public questions tagged with this topic.
Residual volume is the amount of air remaining in the lungs even after a forceful expiration, preventing lung collapse.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Mechanism of Breathing and Respiratory Volumes
Functional Residual Capacity (FRC) is the volume of air remaining in the lungs after a normal expiration (ERV + RV).
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Mechanism of Breathing and Respiratory Volumes
Residual Volume (RV) is the air that remains in the lungs even after a forceful expiration, preventing lung collapse.
Ref: NCERT Class 11 Biology Chapter 14: Breathing and Exchange of Gases Mechanism of Breathing and Respiratory Volumes
Go with C — Remaining after maximum expiration. Within Lung Volumes, Capacities and Regulation, that statement lines up with the standard definition and the usual exam wording you’ll see. In plain terms, Remaining after maximum expiration is the option that correctly names the structure, process, or principle asked for in Lung Volumes, Capacities and Regulation. Holding that picture in mind makes Remaining after maximum expiration feel natural rather than something you only memorise. Link the term to a real body example (organ, tissue, or ion flow) so the idea stays concrete under exam pressure. A short mental diagram helps — start from stimulus or structure, follow the pathway, and stop at the functional result described by Remaining after maximum expiration.
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.
