NCERT Solutions Class 11 Biology Chapter 1 Living World (2022)

NCERT Solutions for Class 11 Biology Chapter 1 – Free PDF Download

The NCERT Solutions for Class 11 Biology at BYJU’S presents students with precise solutions to all the exercise questions given in the NCERT Class 11 textbook. It aligns with the latest update of the CBSE Syllabus 2022-23. The Solutions of NCERT Class 11 Biology of this chapter is considered to be extremely helpful when preparing for your examinations as well as competitive exams. Solutions have been solved skillfully with the use of an easily comprehensible language to help understand concepts and remember them for a long time.

Examinations can be intimidating for some students. Careful planning backed up by thorough and in-depth learning of concepts is a sure-bet to crack the board examinations with flying colours. This is why students can always rely on NCERT Solutionsfor Class 11 crafted at BYJU’S. Here, solutions are framed by a panel of experts having tremendous knowledge in the respective streams, thereby making the NCERT Solutions for Class 11 Biology the ultimate study source.

One of the other advantages is that the NCERT Solutions help students to get familiarized with the textbooks. These solutions can be accessed anywhere, anytime by students saving hours of browsing the web as well as skimming through the book for accurate and precise answers.

Download PDF of NCERT Solutions for Class 11 Biology Chapter 1 – The Living World

NCERT Solutions Class 11 Biology Chapter 1 Living World (1)
NCERT Solutions Class 11 Biology Chapter 1 Living World (2)
NCERT Solutions Class 11 Biology Chapter 1 Living World (3)

Access Answers to NCERT Class 11 Biology Chapter 1 – The Living World

1. Why are living organisms classified?

Solution:

The earth contains millions of organisms, and we may know the plants and animals that live near us by their native names. These local names vary from place to place within a country. This leads to confusion in identifying and studying specific species. Therefore, it must be called by common name throughout the world to standardize the nomenclature and study of organisms. To achieve this, organisms are named and categorized according to their roles.

2. Why are the classification systems changing every now and then?

Solution:

Scientific study is ever a work in progress and new species and organisms are often added. The initial system of classification focuses only on habit and habitat of organisms. Gradually external morphology became a toll for classification. After this, the morphology and embryology are taken into account, followed by the phylogenetic relationship, the cytology of the organism. Modern-day uses biochemical techniques to classify the organisms based on their nucleic acid components.

3. What different criteria would you choose to classify people that you meet often?

Solution:

The people we meet most often are categorized by characteristics such as gender, skin color, education, career, hobbies, and nature.

4. What do we learn from the identification of individuals and populations?

Solution:

By identifying individuals and populations, we learn the following things

(i) Sex

(Video) NCERT Biology Exercise solution Chapter-1 The living World. Class 11.

(ii) Skin colour

(iii) Native place

(iv) Mother tongue

(v) Food habit

(vi) Religion

(vii) Caste

5. Given below is the scientific name of Mango. Identify the correctly written name.

Mangifera Indica

Mangifera indica

Solution:

The answer isMangifera indica. Here mangifera is its genus name, and indica is its species name which is always written in lowercase.

6. Define a taxon. Give some examples of taxa at different hierarchical levels.

Solution:

A taxon is a level of hierarchy in the system of classifying organisms.

Following are the hierarchical levels.

(i) Kingdom

(ii) Phylum

(Video) Biology Questions and Answers Practice Session Chapter 1 THE LIVING WORLD | Class 11 NCERT

(iii) Class

(iv) Order

(v) Family

(vi) Genus

(vii) Species

7. Can you identify the correct sequence of taxonomical categories?

(a) Species Order Phylum Kingdom

(b) Genus Species Order Kingdom

(c) Species Genus Order Phylum

Solution:

From the given options (a) and (c) is the correct sequence of taxonomical categories.

8. Try to collect all the currently accepted meanings for the word ‘species’. Discuss with your teacher the meaning of species in case of higher plants and animals on one hand, and bacteria on the other hand.

Solution:

A group of individual organisms with basic similarities is called species. This is the basic unit of classification. Species are defined as individuals who share the same gene pool.

Higher plants and animals: Criteria of reproductive isolation can be used to classify the species.

Bacteria: interbreeding and reproductive isolation cannot be used in case of bacteria here gene pool can be used to classify species.

9. Define and understand the following terms:

(Video) NCERT Biology Exercise Solution Chapter-1 The Living World Class11

(i) Phylum (ii) Class (iii) Family (iv) Order (v) Genus

Solution:

i) Phylum is a taxonomical hierarchy below Kingdom and above Class. It is a taxon with one or more classes organisms with similar characters.

ii) Class is a taxonomical hierarchy higher than Order and lower than Phylum. Class includes related to orders of the organisms. Example: Presence of notochord in mammals.

iii) Family has a group of related genera with still less number of similarities as compared to genus and species. Example: Fox and dog belongs to the same family. It is a group of entities below Order and above Genus.

iv) Order is a taxon below higher than Family and lower than class. Order being a higher category is the assemblage of families which exhibit a few similar characters.

v) Genus comprises a group of related species which has more characters in common in comparison to species of other genera. Ex: Lion, tiger and leopard are classified under genusPanthera.It is above species and below family.

10. How is a key helpful in the identification and classification of an organism?

Solution:

The key is a taxonomic aid used to identify plants and animals, based on similarities and dissimilarities. It represents the choice between two opposite characters. This is useful for identifying contrasting characters. They are two contrasting characters, where one character’s choice rejects another when the species, family, or genera is identified.

If the entity is not already recorded, efforts are made for the first verification and reconsider its discovery before naming it. Therefore, each entity can be classified as it is known or unknown.

11. Illustrate the taxonomical hierarchy with suitable examples of a plant and an animal.

Solution:

The table below depicts the taxonomic hierarchy with wheat as an example for the plant and the human as an example for animal.

Taxonomic categoriesWheatHuman
KingdomPlantaeAnimalia
Phylum/DivisionAngiospermaeChordata
ClassMonocotylydonaeMammalia
OrderPoalesPrimata
FamilyPoaceaeHomonidae
GenusTriticumHomo
SpeciesTriticum aestivumSapiens

NCERT Solutions for Class 11 Biology Chapter 1 – The Living World

The Living World is the 1st chapter categorized under Unit 1 – Diversity in the Living World. Biology is the science of life forms and living processes. This living world embraces an astonishing diversity of living entities and is vastly distinct in the boundless differences of characteristics they possess. The extraordinary habitats in which living entities are found can be extremely cold conditions or extremely hot conditions, deciduous forests, freshwater lakes, oceans, hot springs and so on.

In NCERT Solutions for Class 11 Biology Chapter 1, students will learn reproduction, growth, ability to sense the environment mount an acceptable response as soon as we think of salient features of living entities. A few other features can be added, namely, ability to self-replicate, metabolism, self-organize, interacting, emergence also make it to the list.

(Video) NCERT Chapter 1 The living world class 11 Biology Full Command over For BOARDS and NEET

This chapter discusses the details of diversity in the living world.

List of subtopics covered in Chapter 1 – The Living World:

NumberSubtopic
1.1What is Living?
1.2Diversity in the living world
1.3Taxonomic categories
1.4Taxonomical Aids

NCERT Solutions for Class 11 Biology Chapter 1 – The Living World

In theNCERT Solutionsof this chapter, we learn about different aspects of The Living World. It has a rich variety of plants and animals even with what has been identified and described, whereas a larger number still remains undiscovered. Living entities vary in terms of colour, size, habitat, morphological and physiological features making us seek the defining characteristics of the living.

Biologists have evolved certain protocols to identify, name (nomenclature) and classify organisms facilitating different kinds of study of diversity observed in organisms. This branch of knowledge that deals with various aspects of the classification of organisms are referred to as taxonomy.

Taxonomic studies and observance of different species of plants and animals are beneficial in a myriad of departments such as forestry, agriculture, industry, bio-resources and their diversity, etc. On the basis of distinct differences and resemblances, every organism can be identified and assigned an appropriate scientific or biological name.

Key Features of NCERT Solutions for Class 11 Biology Chapter 1 – The Living World

  • NCERT Solutions for the chapter have been answered by extracting the most important and relevant information pertaining to the question
  • Use of tabular columns wherever necessary
  • Solutions are to the point and crisp
  • Use of pointers to learn quickly and remember easily
  • Solutions have been designed in such a way so as to fetch optimum marks

Disclaimer –

Dropped Topics –

1.1 What is ‘Living’?
1.4 Taxonomical Aids
1.4.2 Botanical Gardens
1.4.3 Museum
1.4.4 Zoological Parks Summary (Para 2)
Question no. 10

Frequently Asked Questions on NCERT Solutions for Class 11 Biology Chapter 1

Can the NCERT Solutions for Class 11 Biology Chapter 1 be considered as the repository of important questions?

We at BYJU’S provide a set of important questions with solutions based on the latest CBSE Syllabus and its guidelines. The answers are compiled in the form of PDF which can be accessed by the students anywhere and at any time. The subject matter experts having vast knowledge about the respective concepts frame the solutions to help students ace the CBSE exam. The solutions contain explanations in simple language which boost the confidence among students in answering the complex questions efficiently.

What are the benefits of referring to the NCERT Solutions for Class 11 Biology Chapter 1?

Students who solve the textbook questions referring to the NCERT Solutions for Class 11 Biology Chapter 1 find it really helpful during the exams. The solutions are prepared by the experts in an interactive manner which enables students to have a better understanding of the important concepts. By regular practice, students will be able to analyse the type of questions that would appear in Class 11 exams. The solutions help students to complete the CBSE Syllabus on time and also focuses on revision a couple of months prior to the board exam.

What are the important concepts covered in the Chapter 1 of NCERT Solutions for Class 11 Biology?

The important concepts covered in the Chapter 1 of NCERT Solutions for Class 11 Biology are –
1.1 – What is Living?
1.2 – Diversity in the Living World
1.3 – Taxonomic Categories
1.4 – Taxonomical Aids
To understand these concepts in a better way, students can refer to the NCERT Solutions created by the faculty at BYJU’S. The PDF format of solutions is available which can be downloaded and used by the students based on their needs.

(Video) The Living World Part 1 | Biology Class 11 | NCERT Line By Line Series | Nikita Shukla

FAQs

What is living world in biology class 11? ›

Biology is the science of life forms and living processes. The living world comprises an amazing diversity of living organisms. Early man could easily perceive the difference between inanimate matter and living organisms. Early man deified some of the inanimate matter (wind, sea, fire etc.)

What is Living World Short answer? ›

A living organism can grow. All living organisms can reproduce. Metabolism is another defining property of a living organism. Cellular organization of living organisms.
...
Short Answer Type Questions.
HierarchySuffix used
GenusFirst name of the organism
SpeciesThe second term of the scientific name
5 more rows

What is the first chapter of class 11 biology? ›

The first chapter in Class 11 Biology is 'Diversity in The Living World'.

What is living Class 11 answer? ›

Anything which shows characteristics of life is called living. The fundamental characteristics of life are- growth, reproduction, metabolism, cellular organization and consciousness. Though, consciousness is considered as the defining property of living organisms.

Is Ncert enough for NEET? ›

No doubt, NCERT must be the go-to source when it comes to NEET as 80-85% of the question paper comprises questions from NCERT sources. However, if one is looking to crack NEET with a good score, reading beyond NCERT is pivotal. Referring to related sources is a must.

Is class 11 biology hard? ›

Is Biology 11 difficult? Ans. Many students choose Biology because they believe it is a simple and engaging topic. However, after students examine the extensive curriculum for class 11, they know that getting decent grades in this subject would take some effort.

Who is the father of taxonomy? ›

Today is the 290th anniversary of the birth of Carolus Linnaeus, the Swedish botanical taxonomist who was the first person to formulate and adhere to a uniform system for defining and naming the world's plants and animals.

Who is the father of biology? ›

Therefore, Aristotle is called the Father of biology. He was a great Greek philosopher and polymath. His theory of biology also known as the “Aristotle's biology” describes five major biological processes, namely, metabolism, temperature regulation, inheritance, information processing and embryogenesis.

What is called living world? ›

Simply put, the living world can be described as the world around us. It comprises all living creatures, plants and microorganisms that we cannot see. It has changed over the course of billions of years but the general composition has remained the same. The main components are still organic and inorganic matter.

How many chapters are there in botany class 11? ›

There are about 22 chapters in the NCERT Biology Class 11 book which shed light on various facets of the field like Cell Cycle, Anatomy, Digestion, Mineral Nutrition, etc.

What is living in botany? ›

'Living' is something that is alive, something that can grow, move, reproduce, respire and carry out various cellular activities.

What is the study of the living world? ›

biology, study of living things and their vital processes.

What is herbarium class 11? ›

Herbarium is a collection store of plants in their dried condition. Plants are pressed, dried and preserved on white sheets for reference. The sheets with specimens are arranged in one of the accepted system of classification. Herbarium aids in taxonomical studies of different species.

Do all living organisms grow? ›

All living things grow and develop. All living things are capable of reproduction, the process by which living things give rise to offspring. All living things are able to maintain a constant internal environment through homeostasis.

What is difference between living and nonliving things? ›

All living things breathe, eat, grow, move, reproduce and have senses. Non-living things do not eat, grow, breathe, move and reproduce. They do not have senses.

Is NEET easy to score 600? ›

Every year more than 16 lakh appear for the NEET exam. As NEET UG 2023 is a very competitive test, it is hard to get a score of 600 or more on it.

How is 330 Biology NEET scored? ›

Scoring 340+ In NEET 2022 Biology – Topmost Tips

Practice from previous years' papers/mock test/ sample papers. Maintain a different copy, answer your questions there. For the questions you couldn't answer, make note of it and revise it thoroughly, especially in the last few days.

Can I score 600 in NEET by studying only NCERT? ›

Stick to NCERT Books

Once you know them well, it is only then you should look out for other reference books. Sticking to NCERT books for a 600+ score in NEET is the sensible thing to do as out of the 90 questions in the Biology section, almost 80 questions are purely based on NCERT.

Is 12th harder than 11th? ›

Hi 11th standard is comparatively tougher than 12th. so before starting 11th class go through the basics and formulas related to 11th class and try to solve questions of math, physics, chemistry from NCERT book.

What is passing marks out of 70 in class 11? ›

According to CBSE rules , the passing percentage is 33% so out of 70 , 23.1 are the passing marks rounding off to 24 and out of 100 ( 70+ 30 ), you should score atleast 33 marks to pass the examination .

Which is the toughest stream in 11? ›

Science (PCM or PCB)

Science stream has a reputation of most difficult stream in class 11th and 12th. Students learn Science till 10th standard, so they are aware of the basics of this subject. Most of the students want to pick Science in 11th standard because they are aware of the subjects and the careers it offers.

What is Living Word in biology? ›

'Living' is something that is alive, something that can grow, move, reproduce, respire and carry out various cellular activities.

What are the characteristics of living world? ›

Characteristics of Living Things

There are certain distinctive characteristics by which we try to define “living.” The characteristics include growth, metabolism, reproduction, self-organize, self-replicate, interact, ability to sense and react are some very essential features of living things/organisms.

What are the characters of living world? ›

Properties of Life. All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.

What is the living world made of? ›

Composition of the Living World

The living organisms are made up of several organic and inorganic biomolecules. The inorganic compounds comprise water and minerals, whereas, the organic compounds comprise sugars, amino acids, proteins, fats, etc. These biomolecules play an important role in metabolism.

What are 20 living things? ›

20 example of living things:

Birds, insects, animals, trees, groups of people,Plants,Mammals,Mosses,Reptiles,Bacteria,cat,dog , Elephant,bees,cow,buffalow.

What is a living thing called? ›

For this reason, living things are called organisms. The activities of the cells are controlled by the cell's genetic material—its DNA. In some types of organisms, called eukaryotes, the DNA is contained within a membrane-bound structure called the nucleus.

What are the 10 living things? ›

List of 10 living things
  • Human beings.
  • Plants.
  • Insects.
  • Mammals.
  • Mosses.
  • Animals.
  • Reptiles.
  • Bacteria.

What is the smallest unit of life? ›

  • The cell is the smallest unit of life that can divide, multiply, grow and respond to stimuli from the environment. ...
  • Almost all cells, except primitive cells such as bacteria and viruses, are composed of two parts: cytoplasm and nucleus. ...
  • basic plasma (cytosol, colloidal structure)

What is the basic unit of life? ›

Cells are considered the basic units of life in part because they come in discrete and easily recognizable packages. That's because all cells are surrounded by a structure called the cell membrane — which, much like the walls of a house, serves as a clear boundary between the cell's internal and external environments.

What are the 7 features of living things? ›

There are seven characteristics of living things: movement, breathing or respiration, excretion, growth, sensitivity and reproduction. Some non-living things may show one or two of these characteristics but living things show all seven characteristics.

What are the types of living things? ›

Living things are divided into five kingdoms: animal, plant, fungi, protist and monera.

Who is Mrs Gren? ›

MRS GREN is an acronym often used to help remember all the necessary features of living organisms: Movement, Respiration, Sensitivity, Growth, Reproduction, Excretion and Nutrition. An introduction into Mrs Gren, the seven principles of life.

What is diversity in life? ›

Biological diversity, or biodiversity, refers to all of the variety of life that exists on Earth. Biodiversity can be described and measured at three different levels: species, genetic, and ecosystem diversity. Species diversity refers to the number of different species in an ecosystem or on Earth as a whole.

What is family in living world? ›

Family: It is the set of similar genera. The families are classified based on the vegetative and reproductive features. For examples, tiger and lion are put in the Felidae family. Order: It is the assembly of one or more than one common families, considered as a higher category.

Who discovered cell? ›

Initially discovered by Robert Hooke in 1665, the cell has a rich and interesting history that has ultimately given way to many of today's scientific advancements.

What is the primary food for living world? ›

Animals/ humans eat plants for survival. They essentially derive nutrition from plants by consuming the starch and using it for other metabolic processes. Thus, plants are the initiators of the food chain and all organisms directly or indirectly depend on the plants for food.

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