#kidney physiology practice question

Excretory System

Tubuloglomerular feedback regulates GFR by altering:

The correct answer is B: Afferent arteriole diameter. In Excretory System, this idea is central because it matches how the body actually works in everyday teaching examples. Put simply, Afferent arteriole diameter is the option that correctly names the structure, process, or principle asked for in Excretory System. That is why Afferent arteriole diameter 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.

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Excretory System

Juxtaglomerular cells primarily secrete:

Pick B: Renin. Thinking about Excretory System in a practical way — what the structure does, or what the process achieves — leads you here. Clinically and academically, the same logic shows up again and again: the functional job described in the stem is exactly what Renin does in Excretory System. Hence Renin is correct. Treat this as a building block for the rest of Excretory System; neighbouring topics often reuse the same principle. Keep a one-line summary card for this idea and revisit it before the paper; short, repeated review beats long cramming sessions. If the wording feels dense, translate it into everyday language first, then map that plain sentence back onto Renin.

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.

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Excretory System

Which protein is the core component of slit diaphragm?

Go with B — Nephrin. Within Excretory System, that statement lines up with the standard definition and the usual exam wording you’ll see. In plain terms, Nephrin is the option that correctly names the structure, process, or principle asked for in Excretory System. Holding that picture in mind makes Nephrin 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 Nephrin.

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.

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Excretory System

The filtration barrier includes all EXCEPT:

Pick D: Mesangial matrix. Thinking about Excretory System in a practical way — what the structure does, or what the process achieves — leads you here. Clinically and academically, the same logic shows up again and again: the stem is asking for the statement that does not fit the usual rule, and Mesangial matrix is that exception in the context of Excretory System. Hence Mesangial matrix is correct. Treat this as a building block for the rest of Excretory System; neighbouring topics often reuse the same principle. Keep a one-line summary card for this idea and revisit it before the paper; short, repeated review beats long cramming sessions.

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.

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Excretory System

Juxtamedullary nephrons are essential for:

Pick B: Concentrated urine formation. Thinking about Excretory System in a practical way — what the structure does, or what the process achieves — leads you here. Clinically and academically, the same logic shows up again and again: Concentrated urine formation is the option that correctly names the structure, process, or principle asked for in Excretory System. Hence Concentrated urine formation is correct. Treat this as a building block for the rest of Excretory System; neighbouring topics often reuse the same principle. Keep a one-line summary card for this idea and revisit it before the paper; short, repeated review beats long cramming sessions.

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.

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Excretory System

Passive reabsorption in late PCT mainly involves:

Go with B — Cl⁻, urea and water. Within Excretory System, that statement lines up with the standard definition and the usual exam wording you’ll see. In plain terms, the functional job described in the stem is exactly what Cl⁻, urea and water does in Excretory System. Holding that picture in mind makes Cl⁻, urea and water 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 Cl⁻, urea and water.

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.

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