Excretory Products and Their Elimination is a Class 11 Biology chapter that carries about 1.8% of the Biology questions in NEET. Practise it with 54 questions covering 4 topics, each with an explanation.
Sets of 15 questions that adapt to your level, with an explanation for every answer.
Across the 13 previous year papers, Excretory Products and Their Elimination had 20 questions, about 1.5 a year. The most in one paper was 4, in NEET 2023.
| Paper | Questions from this chapter |
|---|---|
| NEET 2026 | 2 |
| NEET 2025 | 1 |
| NEET 2024 | 2 |
| NEET 2023 | 4 |
| NEET 2022 | 1 |
| NEET 2021 | 0 |
| NEET 2020 | 2 |
| NEET 2019 | 2 |
| NEET 2018 | 2 |
| NEET 2017 | 1 |
| NEET 2016 | 1 |
| Re-AIPMT 2015 | 1 |
| AIPMT 2014 | 1 |
8 questions from the practice bank, spread across the chapter's topics. The full set is in the app.
The outer zone of the kidney is the:
Answer: A. cortex, and the inner zone is the medulla
Why: The medulla is divided into the medullary pyramids.
Ultrafiltration of blood in the nephron takes place at the:
Answer: B. glomerulus
Why: Blood is filtered under pressure through the glomerular capillaries into Bowman's capsule, forming the initial filtrate that is then selectively processed along the tubule.
The micturition is the process of:
Answer: D. the release of the urine, which is a reflex that is voluntarily controlled
Why: The urinary bladder is stretched by the urine.
The countercurrent mechanism in the loop of Henle is chiefly responsible for:
Answer: B. producing concentrated urine by maintaining an osmotic gradient in the medulla
Why: The counter-flow of filtrate in the descending and ascending limbs sets up an increasing osmotic gradient in the medullary interstitium, allowing water reabsorption and concentrated urine.
In haemodialysis, the dialysing fluid has the same composition as plasma except that it:
Answer: D. contains no nitrogenous wastes
Why: Wastes diffuse from the patient's blood through the cellophane membrane into the dialysing fluid.
The descending limb of the loop of Henle is:
Answer: D. permeable to the water but almost impermeable to the electrolytes
Why: The filtrate gets concentrated as it moves down.
The nephron is composed of two parts:
Answer: C. the glomerulus and the renal tubule
Why: The glomerulus is a tuft of the capillaries.
The process of filtration of blood in the kidney occurs at the:
Answer: B. glomerulus
Why: Ultrafiltration of blood occurs at the glomerulus, where blood pressure forces fluid and small solutes into Bowman's capsule, forming the filtrate.
Excretory Products and Their Elimination carries about 1.8% of the Biology questions in NEET. Across the 13 previous year papers on NeetVictory it appeared 20 times, about 1.5 questions a year.
Excretory Products and Their Elimination is a Class 11 Biology chapter in the NCERT syllabus.
NeetVictory has 54 practice questions on Excretory Products and Their Elimination, each with an explanation, in sets of 15 that adapt to your level. This page shows a free sample.
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