5 public questions tagged with this topic.
Creatinine is not reabsorbed by the nephron and is completely excreted in urine.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Urine Formation - Reabsorption and Secretion
The proximal convoluted tubule (PCT) reabsorbs nearly all essential nutrients, 70-80% of electrolytes, and water.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Nephron Structure - Tubules PCT Loop of Henle DCT Collecting Duct
Glucose is completely reabsorbed in the proximal convoluted tubule unless blood glucose levels exceed the renal threshold.
Ref: NCERT Class 11 Biology Chapter 16: Excretory Products and their Elimination Modes of Excretion - Ammonotelism Ureotelism Uricotelism
The correct answer is C: Bicarbonate. In Excretory System, this idea is central because it matches how the body actually works in everyday teaching examples. Put simply, Bicarbonate is the option that correctly names the structure, process, or principle asked for in Excretory System. That is why Bicarbonate 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.
Correct option is D, 99%. In Excretory System, the accurate description is 99%, and that is what you should commit to memory. Keep the definition tight and the role clear — 99% is the option that correctly names the structure, process, or principle asked for in Excretory System. Then 99% is the answer you can defend. Check yourself by covering the options and writing the answer first, then matching the letter — that builds confidence. If the wording feels dense, translate it into everyday language first, then map that plain sentence back onto 99%. 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.
