Biology - Excretory Products and their Elimination
Practise 4 NEST (NISER) previous year questions on Excretory Products and their Elimination, compiled from papers spanning 2012 to 2019. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty NEST (NISER) tests.
Excretory Products and their Elimination has been asked in 4 of the 16 years of NEST (NISER) papers analysed (2011–2026), with 4 questions in all. 0% of them were easy, 100% moderate and 0% tough. Most of its questions came from 2019, with 1 question that year. In the last three years (2024–2026) it had 0 questions across 4 papers, about 0 per paper.
The chapter's 2 topics are not weighted equally: Mammalian Urinary System (3 questions, 75%) and Introduction (1 question, 25%) have been asked the most.
- 1The second half of the distal tubule and the cortical collecting tubule of kidneys are equipped with the Principal and Intercalated cells. O2019 (Session 2)Mammalian Urinary System
- 2Few statements about water reabsorption in kidney are given below: i. decreased production of anti-diuretic hormone. ii. increased osmolalit2018Mammalian Urinary System
- 3Three features of nitrogenous excretory products ( and O) of animals are tabulated below. The animals that secrete and O as their major excr2016Introduction
- 4Desert animals need to conserve water. Kidneys regulate the concentration of salt and water in blood through the formation and excretion of 2012Mammalian Urinary System
Frequently Asked Questions
1.How many questions are available for Excretory Products and their Elimination?
This chapter includes 4 questions compiled from NEST (NISER) papers spanning 2012 to 2019.
2.Are these questions only from NEST (NISER), or from other exams too?
These are NEST (NISER) questions specifically for the Excretory Products and their Elimination chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.
3.Is Excretory Products and their Elimination an important chapter for NEST (NISER) Biology?
Excretory Products and their Elimination has appeared in 4 of the 16 years of NEST (NISER) papers covered here, with 4 questions across 4 papers - about one per paper it appears in.
4.What is the difficulty level of Excretory Products and their Elimination questions in NEST (NISER)?
Of the 4 questions analysed for this chapter, 0% are easy, 100% moderate and 0% tough. 2019 had the most, with 1 question.
5.Which topics in Excretory Products and their Elimination should I focus on?
These topics have carried the most weightage in Excretory Products and their Elimination:
- Mammalian Urinary System - 3 questions (75%)
- Introduction - 1 question (25%)
6.Is Excretory Products and their Elimination's weightage in NEST (NISER) going up or down?
Across all 4 papers analysed, Excretory Products and their Elimination has averaged about 1.0 questions per paper. In the last three years (2024–2026), that average has fallen, at about 0.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.