NCERT Solutions For Class 11 Biology Chapter 2

NCERT Solutions Class 11 Biology Biological Classification

Ncert Solutions For Class 11 Biology Chapter 2 PDF Free Download

The NCERT solutions class 11 Biology Chapter 2 Biological Classification is crucial for the students of 11th boards. The NCERT solutions for class 11 Biology Chapter 2 Biological Classification are provided here to help students understand the chapter in an easy and interesting way. The  class 11 NCERT Solutions for Biology Chapter 2 Biological Classification is created by subject experts according to the latest CBSE syllabus. Students must practice the solutions regularly to prepare effectively for their examination. Check the NCERT class 11 biology Solutions for Chapter 2 Biological Classification given below.

Biological Classification is very important as earth has over 8 million species. Ever since the dawn of science, man has been trying to classify the various organisms based on many features. Aristotle classified organisms on the presence of Blood – RBCs. But eventually, this was replaced by Linnaeus’ classification. He had classified the living world into 2 kingdoms – Kingdom Plantae and Kingdom Animalia. Further advances in science led to the discovery of a whole new world of organisms- the microorganisms. And this was further followed by the prokaryotes and the eukaryotes. Hence here was a need for a more advanced system of classification.


The world has over 8 million species of organisms and there are new organisms being discovered everyday. Hence, a system of classification is necessary to group all the millions of species into their respective kingdoms. The chapter also talks about virus and viroids. Technically, a virus can’t be classified as a living or a non living organism because it possess features of both.

For instance, it can’t replicate itself unless it is inside a host. They can also stay dormant for many years at a time and they have also been theorized to survive the vacuum of space. However, the last claim is still controversial as there is not enough evidence to validate the claim. Viruses are basically protein coats that contains genetic materials and none of the traditional cell organelles present in most other living cells. The chapter also talks about plants that are not autotrophic, meaning that they cannot produce their own food and has to rely on other sources. Some become parasites and other develop a symbiotic relationship with another organism for its nutrients.

Practise This Question

Which of the following is responsible for acid rain?