NCERT Exemplar Book PDF Class 11 Biology Chapter 16 Excretory Products and Their Elimination

Download the Class 11 Biology Chapter 16 Excretory Products and their Elimination NCERT Exemplar Book PDF, the official 2026-27 NCERT Exemplar problems for this chapter. The Exemplar gives higher-order MCQs, assertion-reason and short and long answer questions that go beyond the textbook, and it is a favourite source for NEET, CBSE boards and CUET.

• Official NCERT Exemplar 2026-27 problems for this chapter.
• Includes MCQs, assertion-reason, and short and long answer questions.
• Ideal for extra practice after the NCERT textbook and back exercises.

This Class 11 Biology Chapter 16 Excretory Products and their Elimination NCERT Exemplar Book PDF is the official 2026-27 NCERT Exemplar, checked against the latest edition.

What the Excretory Products and their Elimination Exemplar Covers

The Exemplar tests the same chapter as the textbook but at a higher level of difficulty. Its questions probe the modes of excretion, the structure of the human kidney and nephron, the steps of urine formation, the counter current mechanism and the hormonal regulation of kidney function. Because this chapter joins a fine nephron structure to a three-step filtering process, the Exemplar checks whether students can label a nephron, order the events of urine formation, and match each hormone with its effect on the tubule.

• Modes of excretion, ammonotelism, ureotelism and uricotelism, and the human excretory system.
• Structure of the nephron and the steps of urine formation: filtration, reabsorption and secretion.
• The counter current mechanism, hormonal regulation by ADH, the RAAS and ANF, and disorders such as uraemia and kidney stones.

Why Practise the Exemplar for This Chapter

The Exemplar bridges the gap between the NCERT textbook and the level of a competitive exam. For excretory products and their elimination, its questions are close to the style asked in NEET and CUET, where a single detail about the glomerulus or a tubule hormone can decide a mark. Because this chapter carries a fine structure and a stepwise process, the Exemplar is where students meet the process-based questions and assertion-reason sets that a plain reading of the textbook rarely throws up.

• Higher-order questions on the counter current mechanism and glomerular filtration rate that the textbook exercises do not cover.
• Assertion-reason sets that sharpen your grip on the steps of urine formation and hormonal control.
• MCQs on the modes of excretion and nephron structure at exam level.

How to Use the Exemplar for Excretory Products and their Elimination

Attempt the Exemplar only after you have finished the NCERT textbook chapter and its back exercises. Treat it as your second, harder pass over the chapter. Because much of this chapter is a fine structure and a stepwise process, students gain the most by drawing a labelled nephron and writing out the three steps of urine formation rather than only marking the option, so the process stays fixed in memory for the exam.

• Solve the MCQs first to test recall of wastes and nephron parts, then move to assertion-reason.
• Attempt each short and long answer fully before checking the Exemplar Solutions.
• Sketch a labelled nephron and the counter current system, and mark every segment.
• Mark the questions you got wrong and redo them after two days.

Other Class 11 Biology Excretory Products and their Elimination Resources

Use the Exemplar with the textbook PDF, the solved answers, the formula sheet and the revision notes for the same chapter. Working across all resources gives students the definitions, the practice and the higher-order questions they need for both the CBSE board exam and NEET.

Student Feedback on the Excretory Products and their Elimination Exemplar

More than 10,000 Class 11 students used these Collegedunia NCERT resources during the 2026 boards and NEET preparation. Their feedback shaped how we present this chapter, and the message on Chapter 16 was consistent: the Exemplar is what turns the nephron diagram and the steps of urine formation into exam-ready recall.

• Students rated the questions on the counter current mechanism as the most useful part for NEET.
• Many said the Exemplar MCQs on the modes of excretion matched the board and NEET questions they later saw.
• Students preparing for CUET found the short-answer terms a fast way to revise the whole chapter.

NCERT Exemplar Book for Class 11 Biology: All Chapters

Download the Exemplar for every chapter from one place. Each link opens the official NCERT Exemplar Book PDF for that chapter.

FAQs on Class 11 Biology Chapter 16 NCERT Exemplar PDF