CBSE Class 12 Biology Syllabus 2017 2018

CBSE Class 12 Biology Syllabus 2017-2018. Download the latest syllabus to do your studies as per the latest guidelines issued by CBSE NCERT. The syllabus, weightage of chapters, blue print of question papers and the design of question papers is issued every year for the benefit of students. Access all syllabus for all subjects here.

9. BIOLOGY (Code No. 044) 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 and sequential flow of concepts. The syllabus also stresses on making better connections among biological 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 a more contextual and friendly manner as they study the various units. BIOLOGY (Code No. 044) COURSE STRUCTURE CLASS XI (2017-18) (THEORY)

Time: 3 Hours Max. Marks: 70

Unit Title No. of Periods Marks

I Diversity of Living Organisms 23 07

II Structural Organisation in Plants and Animals 22 12

III Cell: Structure and Function 11 35 15

IV Plant Physiology 40 18

V Human Physiology 40 18

Total 160 70

Unit-I Diversity of Living Organisms 23 Periods 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.

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 22 Periods

Chapter-5: Morphology of Flowering Plants Morphology and modifications: Tissues

Chapter-6: Anatomy of Flowering Plants Anatomy and functions 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-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 35 Periods

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, carbohydrates, 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 40 Periods

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

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