CBSE Class XI Curriculum for Biology

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CBSE Class XI Curriculum for Biology

CBSE Class XI Curriculum Biology

CBSE Class XI Curriculum Biology-Knowing the academic syllabus is necessary and helps you to prepare for the academic session in a well organized way. It helps you plan out for the entire syllabus and subjects.

Biology- The current syllabus prescribed by the board for Biology aims to spread the knowledge of the basic principles of biology,it encourages students to know about the upcoming knowledge and its importance towards the society and also individuals. The subject also tries to emphasize the rational behavior towards matters related to population,environment and development. It raises awareness about issues related to the environment, the problems and also the solutions. It tries to create concern amongst the students the diversity  that prevails in the living organisms and have respect for other living beings. It also teaches to appreciate the concept of biological phenomena are created on simple processes. The syllabus is thus prepared expecting that the students would come to know about the various branches of Biology as they start studying.

Books on CBSE website

Unit-I Diversity of Living Organisms

Chapter 1- The Living World

What is biodiversity, the classifications,e domains of life,concept of species and taxonomical hierarchy, binomial nomenclature, tools for study of taxonomy-museums, zoological parks, herbaria, botanical gardens.

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Chapter-2: Biological Classification

Classifications of the Five Kingdoms that is their salient features of Monera, Protista and Fungi  into
major groups: Lichens, Viruses and Viroids.

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Chapter-3: Plant Kingdom

Classifications and salient features of plants into major types like  Algae, Bryophyta, Pteridophyta, Gymnospermae and Angiospermae, classifications and characteristics of Angiosperms .

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Chapter-4: Animal Kingdom

Classifications and salient features of animals non-chordates up to phyla level and chordates up to
class level .

Unit-II Structural Organisation in Animals and Plants

Chapter-5: Morphology of Flowering Plants

Modifications and morphology of tissues.

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Chapter-6: Anatomy of Flowering Plants

Functions and anatomy of different parts of flowering plants with relevant experiments .

Chapter-7: Structural Organisation in Animals

Morphology of Animal tissues,functions of different systems of an insect .

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Unit-III Cell: Structure and Function

Chapter-8: Cell-The Unit of Life

Cell as the basic unit of life and cell theory, the structure of prokaryotic and eukaryotic cells, Plant cell and animal cell, cell envelope,cell membrane, cell wall,what are  cell organelles ,its structure and function,endomembrane system, Endoplasmic Reticulum, Golgi bodies, lysosomes, vacuoles; mitochondria,Ribosomes, Plastids, microbodies,cytoskeleton, cilia, flagella, Centrioles, nucleus, nuclear membrane, chromatin, nucleolus.

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Chapter-9: Biomolecules

The chemical constituents of living cells: biomolecules, structure and function of proteins, carbohydrates, lipids, nucleic acids, enzymes, types, properties, enzyme action.

Chapter-10: Cell Cycle and Cell Division

What is Cell cycle, mitosis, meiosis and their significance.


Unit-IV Plant Physiology

Chapter-11: Transport in Plants

Movement of water, gases and nutrients; cell to cell transport, Diffusion, facilitated diffusion, active transport; plant-water relations, Imbibition, water potential, osmosis, plasmolysis,long distance transport of water – Absorption, apoplast, symplast, transpiration pull, root pressure and guttation; transpiration, opening and closing of stomata; Uptake and translocation of mineral nutrients – Transport of food, phloem transport, mass flow hypothesis; diffusion of gases.

Chapter-12: Mineral Nutrition

What is essential minerals, macro and micronutrients and their role; deficiency symptoms; mineral toxicity,elementary idea of hydroponics as a method to study mineral nutrition; nitrogen metabolism, nitrogen cycle, biological nitrogen fixation.

Chapter-13: Photosynthesis in Higher Plants

What is photosynthesis,its site,pigments involved, photochemical and biosynthetic phases of photosynthesis, cyclic
and non cyclic photophosphorylation, chemiosmotic hypothesis; photorespiration,C3 and C4 pathways,factors affecting photosynthesis.

Chapter-14: 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.

Chapter-15: Plant – Growth and Development

Phases of plant growth and plant growth rate,Seed germination, conditions of growth,differentiation,  sequence of developmental processes ,growth regulators – auxin, gibberellin, cytokinin, ethylene, ABA; seed dormancy,vernalisation; photoperiodism.

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Unit-V Human Physiology

Chapter-16: Digestion and Absorption

Role of digestive enzymes and gastrointestinal hormones,Peristalsis, digestion, absorption and assimilation of proteins, carbohydrates and fats; calorific values of proteins, carbohydrates and fats; egestion; nutritional and digestive disorders.

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Chapter-17: Breathing and Exchange of Gases

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,respiratory organs in animals .


Chapter-18: Body Fluids and Circulation

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,Composition of blood, blood groups, coagulation of blood, composition of lymph and its function.

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Chapter-19: Excretory Products and Their Elimination

Various modes of excretion,structure and function,regulation of kidney function,role of other organs in excretion,disorders .

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Chapter-20: Locomotion and Movement

Different types of movement,skeletal system and its functions,joints, disorders of muscular and skeletal system .

Chapter-21: Neural Control and Coordination

Nervous system in humans,neuron and nerves,generation and conduction of nerve impulse, reflex action, sensory
perception; sense organs, elementary structure and functions of eye and ear.


Chapter-22: Chemical Coordination and Integration

Human endocrine system,endocrine glands and hormones, role of hormones as messengers and regulators, hypo – and hyperactivity and related disorders.

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Books for Class XI Biology

  1. 15 Sample Question Papers Biology Class 11th CBSE  by, Arihant Experts
  2. NCERT biology textbook class 11
  3. Trueman’s elementary biology vol.-I by  by M.P Tyagi and K.N. Bhatia
  4. Modern ABCs Biology part I and II class 11 by  Dr. B.B. Arora, A.K. Sabbarwal


For study reference 

For online books 

All the best students !

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