CBSE Class 11 Biology Syllabus 2018 - 2019

CBSE Class 11 Biology Syllabus 2018 - 2019 is available here. With this article, students can access the complete CBSE Syllabus for Class 11 Biology. It contains complete detail related to experiments and practicals of CBSE Class 11 Biology.

CBSE Class 11 Biology Syllabus 2018 - 2019
CBSE Class 11 Biology Syllabus 2018 - 2019

CBSE Syllabus for Class 11 Biology is available here. is recently released by the board. It provides complete details about course structure along with other important like list of experiments, practicals and prescribed textbooks etc.

Important portion of CBSE Class 11 Biology Syllabus 2018 – 2019 is given below

Name of the Units and their weightage

Unit No.



Unit I

Diversity of Living Organism


Unit II

Structural Organisation in Plants & Animals


Unit III

Cell: Structure and Function


Unit IV

Plant Physiology


Unit V

Human Physiology





Details of topics and sub-topics to be covered in each unit

Unit I: Diversity of Living Organism

Chapter-1: The Living World

What is living? Biodiversity;  Need for classification; three domains of life; taxonomy and systematics; concept of species and taxonomical hierarchy; binomial nomenclature; tools for study of taxonomy-museums, zoological parks, herbaria, botanical gardens

NCERT Exemplar: CBSE Class 11 Biology - All Chapters

Chapter-2: Biological Classification

Five kingdom classification; Salient features and classification of Monera, Protista and Fungi into major groups: Lichens, Viruses and Viroids.

Chapter-3: Plant Kingdom

Salient features and classification of plants into major groups - Algae, Bryophyta, Pteridophyta, Gymnospermae and Angiospermae (three to five salient and distinguishing features and at least two examples of each category); Angiosperms - classification upto class, characteristic features and examples.

Chapter-4: Animal Kingdom

Salient features and classification of animals non chordates up to phyla level and chordates up to class level (three to five salient features and at least two examples of each category).
(No live animals or specimen should be displayed.)

Unit II: Structural Organisation in Animals and Plants

Chapter-5: Morphology of Flowering Plants

Morphology  and  modifications:Internal  Morphology  of different  parts  of  flowering  plants:  root,  stem, leaf, inflorescence, flower, fruit and seed (to be dealt along with the relevant experiment of the Practical Syllabus).

Chapter-6: Anatomy of Flowering Plants

Anatomy and functions of different tissues.

Chapter-7: Structural Organisation in Animals

Animal tissues: Morphology, anatomy and functions of different systems (digestive, circulatory, respiratory, nervous and reproductive) of an insect (cockroach). (a brief account only)

Unit III: Cell Structure and Function

Chapter-8: 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, nuclear membrane, chromatin, nucleolus.

Chapter-9: Biomolecules

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

Chapter-10: Cell Cycle and Cell Division

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, massflowhypothesis.

Chapter-12: Mineral Nutrition

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

Photosynthesis  as  a  meansof  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.

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

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; seed dormancy; vernalisation; photoperiodism.

Unit-V Human Physiology

Chapter-16: Digestion and Absorption

Alimentary canal and digestive glands, 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 - PEM, indigestion, constipation, vomiting, jaundice, diarrhoea.

Chapter-17: 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.

Chapter-18: 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.

Chapter-19: 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 - uraemia, renal failure, renal calculi, nephritis; dialysis and artificial kidney.

Chapter-20: 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 system - myasthenia gravis, tetany, muscular dystrophy, arthritis, osteoporosis, gout.

Chapter-21: 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; reflex action; sensory perception; sense organs; elementary structure and functions of eye and ear.

Chapter-22: 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 to be taught in brief.

Practicals: Evaluation Scheme and List of Experiments (Total Periods 60)

Time allowed: 3 hours                                                                                  Max. Marks: 30

Evaluation Scheme


One Major Experiment Part A (Expt No. 1, 3, 7, 8)


One Minor Experiment Part A (Expt No. 6, 9, 10, 11, 12, 13)


Slide Preparation Part A (Expt No. 2, 4, 5)


Spotting Part B


Practical Record + Viva Voice


Project Record + Viva Voice



30 Marks

A. List of Experiments

1. Study and description of three locally available common flowering plants, one from each of the families Solanaceae, Fabacceae and Liliaceae (Poaceae, Asteraceae or Brassicaceae can be substituted in case of particular geographical location) including dissection and display of floral whorls, anther and ovary to show number of chambers (floral formulae and floral diagrams). Types of root (Tap and adventitious); stem (herbaceous and woody); leaf (arrangement, shape, venation, simple and compound).

2. Preparation and study of T.S. of dicot and monocot roots and stems (primary).

3. Study of osmosis by potato osmometer.

4. Study of plasmolysis in epidermal peels (e.g. Rhoeo Leaves).

5. Study of distribution of stomata in the upper and lower surface of leaves.

6. Comparative study of the rates of transpiration in the upper and lower surface of leaves.

7. Test for the presence of sugar, starch, proteins and fats. Detection in suitable plant and animal materials.

8. Separation of plant pigments through paper chromatography.

9. Study of the rate of respiration in flower buds/Leaf tissue and germinating seeds.

10. Test for presence of urea in urine.

11. Test for presence of sugar in urine.

12. Test for presence of albumin in urine.

13. Test for presence of bile salts in urine.

B. Study/observation of the following (Spotting)

1. Study of the parts of a compound microscope.

2. Study of the specimens/slides/models and identification with reasons - Bacteria, Oscillatoria, Spirogyra, Rhizopus, mushroom, yeast, liverwort, moss, fern, pine, one monocotyledonous plant, one dicotyledonous plant and one lichen.

3. Study of virtual specimens/slides/models and identification with reasons . Amoeba, Hydra, liverfluke, Ascaris, leech, earthworm, prawn, silkworm, honeybee, snail, starfish, shark, rohu, frog, lizard, pigeon and rabbit.

4. Study of tissues and diversity in shapes and sizes of plant and animal cells (palisade cells, guard cells, parenchyma, collenchyma, sclerenchyma, xylem, phloem, squamous epithelium, muscle fibres and mammalian blood smear) through temporary/permanent slides.

5. Study of mitosis in onion root tip cells and animals cells (grasshopper) from permanent slides.

6. Study of different modifications in roots, stems and leaves.

7. Study and identification of different types of inflorescence (cymose and racemose).

8. Study of imbibition in seeds/raisins.

9. observation and comments on the experimental set up for showing:

a) Anaerobic respiration

b) Phototropism

c) Effect of apical bud removal

d) Suction due to transpiration

10. Study of human skeleton and different types of joints with the help of virtual images/models only.

11. Study of external morphology of cockroach through virtual images/models.

Prescribed Books:

1. Biology, Class-XI, Published by NCERT

2. Other related books and manuals brought out by NCERT (consider multimedia also)

Download CBSE Class 11 Biology Syllabus 2018 - 2019

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