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CBSE class 11 Biology syllabus 2024-25 - The Central Board of Secondary Education has released the class 11 biology syllabus for the academic year 2024-25. The CBSE class 11 Biology syllabus 2025 can be downloaded from the CBSE official website: cbseacademics.nic.in. It is necessary for students to refer to the CBSE class 11 Biology syllabus 2024-25 for information about the important topics. Furthermore, students can learn about the marking scheme and syllabus for practical exams. For the current academic year 2024-25, there has been no reduction in CBSE 11th Biology syllabus 2025. The final exam will be held with the complete syllabus.
To prepare for the exam, students can refer to the syllabus and plan a study schedule. For competitive exams, the CBSE biology syllabus for class 11 2024-25 will also be beneficial. The aggregate marks for the class 11 Biology exam are 100. The theory paper consists of 70 marks, while the practical exam consists of 30 marks. There will be three hours of examination time for both papers.
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The CBSE syllabus of Class 11 Biology 2025 is divided into five units, each containing specific chapters and topics. Students can refer to the following breakdown of the syllabus of CBSE class 11 Biology for a comprehensive understanding of the subject:
Chapter No. and Name | Topics |
Unit-I - Diversity of Living Organisms | |
The Living World | Biodiversity; Need for classification; Three domains of life; taxonomy and systematics; concept of species and taxonomical hierarchy; binomial nomenclature |
Biological Classification | Five kingdom classification; Salient features and classification of Monera, Protista and Fungi into major groups; Lichens, Viruses, and Viroids. |
Plant Kingdom | Salient features and classification of plants into major groups - Algae, Bryophyta, Pteridophyta, |
Animal Kingdom | Salient features and classification of animals, non-chordates up to phyla level and chordates up to class level (salient features and distinguishing features of a few examples of each category). (No live animals or specimens should be displayed.) |
Unit-II Structural Organization in Animals and Plants | |
Morphology of Flowering Plants | Morphology and modifications: Morphology of different parts of flowering plants: root, stem, leaf, inflorescence, flower, fruit and seed. Description of family Solanaceae and |
Anatomy of Flowering Plants | Anatomy and functions of different tissues and tissue systems in dicots and monocots. |
Structural Organisation in Animals | Morphology, Anatomy and functions of different systems (digestive, circulatory, respiratory, nervous and reproductive) of frog |
Unit-III Cell: Structure and Function | |
Cell-The Unit of Life | Cell theory and cell as the basic unit of life, structure of prokaryotic and eukaryotic cells; Plant cell and animal cell; cell envelope; cell membrane, cell wall; cell organelles - structure and function; endomembrane system, endoplasmic reticulum, golgi bodies, lysosomes, vacuoles, mitochondria, ribosomes, plastids, microbodies; cytoskeleton, cilia, flagella, centrioles (ultrastructure and function); nucleus. |
Biomolecules | Chemical constituents of living cells: biomolecules, structure and function of proteins, carbohydrates, lipids, nucleic acids; Enzymes- types, properties, enzyme action. |
Cell Cycle and Cell Division | Cell cycle, mitosis, meiosis and their significance |
Unit-IV Plant Physiology | |
Photosynthesis in Higher Plants | Photosynthesis as a means of autotrophic nutrition; site of photosynthesis, pigments involved in photosynthesis (elementary idea); photochemical and biosynthetic phases of photosynthesis; cyclic and non-cyclic photophosphorylation; chemiosmotic hypothesis; photorespiration; C3 and C4 pathways; Factors affecting photosynthesis. |
Respiration in Plants | Exchange of gases; cellular respiration - glycolysis, fermentation (anaerobic), TCA cycle and electron transport system (aerobic); energy relations - number of ATP molecules generated; amphibolic pathways; respiratory quotient. |
Plant - Growth and Development | Seed germination; phases of plant growth and plant growth rate; conditions of growth; differentiation, dedifferentiation and redifferentiation; sequence of developmental processes in a plant cell; growth regulators - auxin, gibberellin, cytokinin, ethylene, ABA |
Unit-V Human Physiology | |
Breathing and Exchange of Gases | Respiratory organs in animals (recall only); Respiratory system in humans; mechanism of breathing and its regulation in humans - exchange of gases, transport of gases and regulation of respiration, respiratory volume; disorders related to respiration - asthma, emphysema, occupational respiratory disorders. |
Body Fluids and Circulation | Composition of blood, blood groups, coagulation of blood; composition of lymph and its function; human circulatory system - Structure of human heart and blood vessels; cardiac cycle, cardiac output, ECG; double circulation; regulation of cardiac activity; disorders of circulatory system - hypertension, coronary artery disease, angina pectoris, heart failure. |
Excretory Products and their Elimination | Modes of excretion - ammonotelism, ureotelism, uricotelism; human excretory system – structure and function; urine formation, osmoregulation; regulation of kidney function - renin-angiotensin, atrial natriuretic factor, ADH and diabetes insipidus; role of other organs in excretion; disorders - uremia, renal failure, renal calculi, nephritis; dialysis and artificial kidney, kidney transplant. |
Locomotion and Movement | Types of movement - ciliary, flagellar, muscular; skeletal muscle, contractile proteins and muscle contraction; skeletal system and its functions; joints; disorders of muscular and skeletal systems - myasthenia gravis, tetany, muscular dystrophy, arthritis, osteoporosis, gout. |
Neural Control and Coordination | Neuron and nerves; Nervous system in humans - central nervous system; peripheral nervous system and visceral nervous system; generation and conduction of nerve impulse |
Chemical Coordination and Integration | Endocrine glands and hormones; human endocrine system - hypothalamus, pituitary, pineal, thyroid, parathyroid, adrenal, pancreas, gonads; mechanism of hormone action (elementary idea); role of hormones as messengers and regulators, hypo - and hyperactivity and related disorders; dwarfism, acromegaly, cretinism, goiter, exophthalmic goiter, diabetes, Addison's disease. Note: Diseases related to all the human physiological systems are to be taught in brief. |
The table below lists the marks assigned for each unit of the CBSE class 11 Biology syllabus 2024-25.
Unit | Marks |
Diversity of Living Organisms | 15 |
Structural Organization in Plants and Animals | 10 |
Cell: Structure and Function | 15 |
Plant Physiology | 12 |
Human Physiology | 18 |
Total | 70 |
There will be 30 marks in total for the practicals, and the exam will last for 3 hours. Check out the evaluation criteria for the CBSE class 11 biology practical exams in the table below.
Particulars | Marks |
One Major Experiment Part A (Experiment No- 1,3,7,8) | 5 |
One Minor Experiment Part A (Experiment No- 6,9,10,11,12,13) | 4 |
Slide Preparation Part A (Experiment No- 2,4,5) | 5 |
Spotting Part B | 7 |
Practical Record + Viva Voce | 4 |
Project Record + Viva Voce | 5 |
Total | 30 |
The CBSE class 11 biology syllabus 2024-25 is included in the NCERT books for class 11 Biology that are recommended by the CBSE. The list of study materials is provided below:
1. Biology Class-XI, Published by NCERT
2. Other related books and manuals brought out by NCERT (including multimedia)
Check the entire CBSE syllabus for Class 11 Biology 2024-25 and identify all the key topics.
Utilise NCERT books exclusively to cover the curriculum. Keep yourself updated with the CBSE 12th exam dates.
Creating notes during self-study is highly crucial for students. This practice enhances your understanding of Biology topics and promotes clearer comprehension.
Make a habit of practising diagrams. Also, give the diagram the proper labels. For improved control over a diagram, practise it at least two or three times.
To find out the kinds of questions that will be asked in the exam, solve sample papers and CBSE Class 11 previous year's question Papers. This will aid in your better preparation for Biology-related topics.
To pass the exam, students must obtain a minimum of 33% in both the theory and practical parts of the exam.
The best book for biology is NCERT Class 11 biology book. Along with this, students can also follow other reference books.
The PDF version of NCERT Biology is accessible on the official website: ncert.nic.in.
Late Fee Application Date:22 July,2024 - 31 July,2024
Late Fee Application Date:22 July,2024 - 31 July,2024
hello mahima,
If you have uploaded screenshot of your 12th board result taken from CBSE official website,there won,t be a problem with that.If the screenshot that you have uploaded is clear and legible. It should display your name, roll number, marks obtained, and any other relevant details in a readable forma.ALSO, the screenshot clearly show it is from the official CBSE results portal.
hope this helps.
Hello Akash,
If you are looking for important questions of class 12th then I would like to suggest you to go with previous year questions of that particular board. You can go with last 5-10 years of PYQs so and after going through all the questions you will have a clear idea about the type and level of questions that are being asked and it will help you to boost your class 12th board preparation.
You can get the Previous Year Questions (PYQs) on the official website of the respective board.
I hope this answer helps you. If you have more queries then feel free to share your questions with us we will be happy to assist you.
Thank you and wishing you all the best for your bright future.
Hello student,
If you are planning to appear again for class 12th board exam with PCMB as a private candidate here is the right information you need:
Remember
, these are tentative dates based on last year. Keep an eye on the CBSE website ( https://www.cbse.gov.in/ ) for the accurate and official announcement.
I hope this answer helps you. If you have more queries then feel free to share your questions with us, we will be happy to help you.
Good luck with your studies!
Hello Aspirant , Hope your doing great . As per your query , your eligible for JEE mains in the year of 2025 , Every candidate can appear for the JEE Main exam 6 times over three consecutive years . The JEE Main exam is held two times every year, in January and April.
Hi there,
Hope you are doing fine
Yes you are certainly eligible for giving the jee exam in the year 2025. You must pass the maths exam with at least 75% criteria as required by jee and provide the marksheet and the passing certificate while registering for the exam.
Pursuing maths as an additional subject while taking biology as your main subject does not offer any hindrance in you appearing for the jee examination. It is indeed an privilege to pursue both maths and biology as the subjects and prepare for the same.
There will be no issue in filling the form while registering for the exam as it will only require your basic details and marksheet which you can provide by attaching the marksheet of maths also. Also, a detailed roadmap is also available on the official websites on how to fill the registration form. So you can fill the form easily.
Hope this resolves your query.
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