CBSE Class-11 Syllabus 2018-19 (Biology)

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CBSE Class-11 Syllabus 2018-19 (Biology)

The present syllabus provides the students with new concepts along with an extended exposure to contemporary areas of the subject. The syllabus also aims at emphasizing on the underlying principles that are common to both animals and plants as well as highlighting the relationship of Biology with other areas of knowledge. The format of the syllabus allows a simple, clear, sequential flow of concepts. It relates the study of biology to real life through the use of technology. It links the discoveries and innovations in biology to everyday life such as environment, industry, health and agriculture. The updated syllabus also focuses on reducing the curriculum load while ensuring that ample opportunities and scope for learning and appreciating basic concepts of the subject continue to be available within its framework. The prescribed syllabus is expected to:

  • promote understanding of basic principles of Biology;
  • encourage learning of emerging knowledge and its relevance to individual and society;
  • promote rational/scientific attitude towards issues related to population, environment and development;
  • enhance awareness about environmental issues, problems and their appropriate solutions;
  • create awareness amongst the learners about diversity in the living organisms and developing respect for other living beings;
  • appreciate that the most complex biological phenomena are built on essentially simple processes;
  • It is expected that the students would get an exposure to various branches of Biology in the syllabus in a more contextual and friendly manner as they study its various units


Unit Title No.of Period Marks
I Diversity of Living Organisms 23 07
II Structural Organisation in Plants and Animals 22 12
III Structure and Function 35 15
IV Plant Physiology 40 18
V Human Physiology 40 18
  Total 160 70

Unit-I Diversity of Living Organisms 
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 taxonomymuseums, zoological parks, herbaria, botanical gardens.

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.

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Courtesy: CBSE

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