NCERT Solutions For Class 11 Biology Chapter 19

NCERT Solutions For Class 11 Biology Chapter 19 PDF Free Download

NCERT Solutions for Class 11 Biology Chapter 19 Excretory Products and their Elimination is an ace study material you can rely on to prepare well for the examination. This solution has answers to the textbook questions along with the important questions from previous year question papers, sample papers.

This ncert solutions has a variety of exemplary questions like MCQ’S, Short and long answer questions, worksheets and HOTs. By studying these solutions students get elites on this topic and they can easily make their own chapter 19 biology class 11 notes to score good marks in class 11 biology examination and entrance exams.

NCERT Solutions for Class 11 Biology Chapter 19 Excretory Products
The process of eliminating all the waste products of metabolism and other non-useful materials from a body of an organism is termed as Excretion. The metabolic wastes include carbon dioxide, the excess of water molecules, nitrogenous compounds are termed as excretory products. These products are eliminated out of our body by the excretory system. The excretory system comprises different organs and it varies in different organisms.

Main components of the human excretory system

A pair of kidneys

They are dark coloured, bean-shaped organs. The size of each kidney is about 11 cm long, 3 cm thick, and 5 cm wide. Each kidney weighs about 135gm in adult female and150gm in an adult male.

A pair of ureter

They are a white coloured tube which emerges out from each kidney. They are about 26-28 cm long and its wall is made up of transitional epithelium and is surrounded by layers of muscle fibre.

Urinary bladder

A pear-shaped, muscular sac, composed of smooth and involuntary muscles known as detrusor muscles.


It is a tube-like structure that connects the urinary bladder to the urinary meatus for the elimination of urine from the body. The structure of the urethra is different in both male and female.

Subtopics of Chapter 19 Excretory Products and their Elimination

  1. Human Excretory System
  2. Urine Formation
  3. The function of the Tubules
  4. Mechanism of Concentration of the Filtrate
  5. Regulation of Kidney Function
  6. Micturition
  7. Role of other Organs in Excretion
  8. Disorders of the Excretory System.

NCERT solutions for class 11 biology chapter 19 excretory products and their elimination is one of the key tools to prepare biology for class 11th examination. The class 11 NCERT solutions for biology chapter 19 provided here to help students to prepare for their exams in an effective way. The NCERT class 11 biology solutions for chapter 19 Excretory Products and their Elimination is prepared by a team of expert teachers and it covers all the key concepts of the chapter.

Class 11 Biology NCERT Solutions Transport in Plants Important Questions

Q7: Match the items of column I with those of column II:



Why to Opt BYJU’s?

Excretory Products and their Elimination one of the most important topics for CBSE class 12 Biology exams. It is one among the good weightage chapters, hence, students are advised to get well versed with the concepts related to this chapter by referring to these NCERT SOLUTIONS. By practising more questions from these NCERT study materials, students can score good marks in the board exam as it will provide all the basic information about the different types of questions asked, exam question paper pattern and the marking scheme.

By downloading these pdf files, students can learn other topics related to the excretory system, structure, and functions of the excretory system and its organs. These NCERT solutions are viable for free in pdf format. Those students who like to avail these study materials can either download the pdf files or prepare online by visiting our website at BYJU’S.

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