Class 11 CBSE Biology classes
What Student Will Learn
Unit-I Diversity of Living Organisms
Chapter-1: The Living World
Biodiversity; Need for classification; three domains of life; taxonomy and systematics;
concept of species and taxonomical hierarchy; binomial nomenclature
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
Classification of plants into major groups; Salient and distinguishing features and a few
examples of Algae, Bryophyta, Pteridophyta, Gymnospermae and Angiosperms.
Chapter-4: Animal Kingdom
Salient features and classification of animals, non-chordates up to phyla level and
chordates upto class level (salient features and at a few examples of each category).
(No live animals or specimen should be displayed.)
Unit-II Structural Organization in Plants and Animals
Chapter-5: Morphology of Flowering Plants
Morphology of different parts of flowering plants: root, stem, leaf, inflorescence, flower,
fruit and seed. Description of family Solanaceae
Chapter-6: Anatomy of Flowering Plants
Anatomy and functions of tissue systems in dicots and monocots.
Chapter-7: 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
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.
Chapter-9: Biomolecules
Chemical constituents of living cells: biomolecules, structure and function of proteins,
carbohydrates, lipids, and nucleic acids; Enzyme - types, properties, enzyme action.
(Topics excluded: Nature of Bond Linking Monomers in a Polymer, Dynamic State of Body
Constituents Concept of Metabolism, Metabolic Basis of Living, The Living State)
Chapter-10: Cell Cycle and Cell Division
Cell cycle, mitosis, meiosis and their significance
Unit-IV Plant Physiology
Chapter-11: 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.
Chapter-12: 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-13: 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; plant growth regulators - auxin, gibberellin, cytokinin, ethylene,
ABA.
Unit-V Human Physiology
Chapter-14: 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-15: 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-16: 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.
Chapter-17: 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.
Chapter-18: 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
Chapter- 19: 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
goitre, diabetes, Addison's disease.