CBSE Syllabus for Class 9 Biology 2021-2022 Exam


CBSE Class 9 Biology syllabus is included in the Science syllabus only. But, every student needs to identify the topics under each stream, that is Physics, Chemistry and Biology. This will help them identify their interests and decide which subjects they want to study in higher classes. Class 9 Biology syllabus includes three units: Unit II - Organization in the Living World and Unit IV - Our Environment and Unit V - Food; Food Production. All these three units comprise 30 Marks out of the 80 Marks of the theory examination. This means, if you want to score maximum marks in the theory paper, you must study biology chapters carefully and prepare them well. 


The three units of the CBSE Class 9 Biology syllabus include topics like the cell which is also known as the basic unit of life, tissues, organs and organ systems. You will be studying the biological diversity in nature including the major groups of plants and animals. Also, you will come to know about various health problems or diseases common in society and how they are caused. For instance, some diseases are caused by microbes, some are infectious while some are non-infectious. Then, you will be studying the concepts of organic farming, food production, and biochemical cycles in nature like the water cycle, oxygen cycle, nitrogen cycle and carbon cycle. 


You can check the CBSE syllabus for Class 9 Biology from the askIITians website easily. We have added the latest topics prescribed by the CBSE for Class 9 Science. We have also included the exam pattern, guidelines and marking scheme for your assistance. Along with this, you can find the CBSE study materials, previous year papers, sample papers, NCERT solutions and much more on our website. If you need further help, you can join our online CBSE coaching for Class 9 Science where you can learn in live classes from our teachers in an interactive environment. 


CBSE Class 9 Biology Syllabus 2021-22 Topics


CBSE Class 9 Biology Syllabus 2021-22


Unit II: Organisation in the Living World 

Cell: Types of cells, multicellular organisms, the structure of a cell - cell organelles, chloroplast, cell membrane, nucleus, et cetera 


Tissues, Organs, Organ System, Organisms: Four types of tissues in animals, permanent and meristematic tissues in plants 


Biological Diversity: Classification of plants and animal species, major groups of plants and animals and their salient features 


Health and Diseases: Infectious and non-infectious diseases, microbes causing diseases in human beings 

20 Marks 

Unit: IV: Our Environment 

Physical Resources: Air, water, soil and their pollution, the role of air in combustion, rainfall and moderating temperature, ozone layer depletion 


Biogeochemical cycles in nature: Water, oxygen, carbon and nitrogen cycles

6 Marks 

Unit V: Food Production

Plant and animal breeding, use of fertilizers and manures, protection from pests and diseases, organic farming

4 Marks 


Total 30 Marks 


CBSE Class 9 Biology syllabus also includes a list of practicals to be conducted by the students on various topics that they will study in the theory class. This will help you understand the applications of Science concepts in real life and you can analyse how Biology plays a role in our lives. You can find the complete list of practicals in our CBSE syllabus for Class 9. Here are some the experiments from that list for your reference: 


  • Preparing temporary mounts of onion peel and human cheek cells 
  • Identifying tissues in plants and drawing their labelled diagrams 
  • Studying the characteristics of Spirogyra, Agaricus, Moss, Fern, Pinus (either with male or female cone) and an Angiospermic plant


CBSE Class 9 Biology Syllabus 2021-22 FAQs


#1 Why should I download the Class 9 CBSE Biology syllabus? 


The Biology syllabus for Class 9 CBSE will help you identify the chapters you need to study under this stream. It also includes the topics to be studies, list of practicals, internal assessment and external exam marking schemes. You must have the syllabus with you to identify your learning progress in the subject. 


#2 How many chapters are there in Class 9 Biology? 


You must study NCERT books for Class 9 Biology. There are 6 Chapters in Class 9 Biology syllabus as given below: 

Chapter 5: The Fundamental Unit of Life

Chapter 6: Tissues 

Chapter 7: Diversity in Living Organisms

Chapter 13: Why Do We Fall Ill? 

Chapter 14: Natural Resources

Chapter 15: Improvement in Food Resources 


#3 How to study Class 9 Biology syllabus to get full marks? 


  • Make sure you understand all the concepts thoroughly
  • Learn to draw all the important diagrams with correct labelling 
  • Make notes while studying so that you can remember the concepts easily 
  • Solve all the NCERT questions 
  • Solve sample papers and previous year problems 
  • Take online classes to get your doubts solved immediately


#4 What is the other name of cotyledons in Class 9 Biology?


The other name of cotyledon is seed leaf or 'embryonic leaf'. 


#5 What are the factors on which irrigation requirements depend?


The irrigation requirements depend upon the nature of the crops, the nature of the soil, the amount of rainfall or water availability. 


#6 Give the names of any two chemicals that are depleting the ozone layer.


Ozone layer depletion is a major concern of the world. Two chemicals that are contributing to the depletion of the ozone layer are CFCs or Chlorofluorocarbons, and CCL4 or Carbon tetrachloride. 



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