Check Deleted Topics From 11th Biology Syllabus 2020-21
The CBSE Class 11 Syllabus is formulated by the Central Board of Secondary Education in collaboration with the National Council of Educational Research and Training (NCERT). The CBSE-affiliated schools are required to follow the CBSE Syllabus for Class 11. The latest CBSE Curriculum for Class 11, for the academic year 2020-21, has already been released by the CBSE.
The updated CBSE Class 11 Syllabus for 2020-21 provides a detailed overview of the course structure, unit-wise marks distribution, prescribed textbooks, question paper pattern, and other crucial information relevant to CBSE Class 11 students.
Check Deleted Topics From 11th Biology Syllabus 2020-21 and download here
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Under Unit 1: Diversity of Living Organisms
Chapter-1: The Living World
-Introduction to taxonomy and systematics;
-Tools for the study of taxonomy- museums, zoological parks, herbaria, botanical gardens, keys for identification.
Chapter-3: Plant Kingdom
Angiospermae; Angiosperms – classification up to the class level, characteristic features, and examples.
Under Unit-II Structural Organization in Animals and Plants
Chapter-5: Morphology of Flowering Plants
-Morphology and modifications: Morphology of different parts of flowering plants: root, stem, leaf, fruit and seed.
-Description of families: – Fabaceae
Chapter-6: Anatomy of Flowering Plants
Anatomy and functions of different tissues and tissue systems in dicots and monocots. Secondary growth.
Chapter-7: Structural Organisation in Animals
Morphology, Anatomy and functions of different systems (digestive, circulatory, respiratory, nervous and reproductive) of a cockroach (insect), with a brief account.
Under Unit-IV Plant Physiology
Chapter-11: Transport in Plants
This chapter covers the transport mechanisms in plants, including the movement of water, gases, and nutrients. It describes various modes of transportation such as cell to cell transport, diffusion, facilitated diffusion, and active transport. The chapter also explains the relationship between plants and water, including imbibition, water potential, osmosis, and plasmolysis.
Moreover, it discusses the long-distance transport of water, including the process of absorption, apoplast, symplast, transpiration pull, root pressure, and guttation. Additionally, it explains transpiration, opening, and closing of stomata. Finally, the chapter discusses the uptake and translocation of mineral nutrients, including transport of food, phloem transport, and the mass flow hypothesis.
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, the nitrogen cycle, biological nitrogen fixation.
Chapter-15: Plant Growth and Development
Seed germination; phases of plant growth and plant growth rate; conditions of growth; differentiation, dedifferentiation, and redifferentiation; the sequence of developmental processes in a plant cell; seed dormancy; vernalization; photoperiodism.
Under Unit-V Human Physiology
Chapter-16: Digestive System
Structure and functions of the alimentary canal and digestive glands; the 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; common nutritional and digestive disorders – PEM, indigestion, constipation, vomiting, jaundice, and diarrhea.
Chapter-20: Body Movements
Types of movement – ciliary, flagellar, and muscular; skeletal system and its functions; joints; common disorders of muscular and skeletal systems – myasthenia gravis, tetany, muscular dystrophy, arthritis, osteoporosis, and gout.
Chapter-21: Neural Control and Coordination
Reflex action; sensory perception; sense organs; elementary structure and functions of the eye and ear.
Download here Full revised class 11th syllabus 2020-21
DELETED PORTIONS CLASS XI: PRACTICAL
A: List of Experiments
- Description of Family Fabaceae; Types of root (Tap and adventitious); types of stem (herbaceous and woody); leaf arrangement, shape, venation, simple and compound.
- Preparation and study of T.S. of dicot and monocot roots and stems (primary).
- Study of osmosis by potato osmometer.
- Study of plasmolysis in epidermal peels (e.g. Rhoeo/lily leaves or flashy scale leaves of onion bulb).
- Comparative study of the rates of transpiration in the upper and lower surface of leaves.
- Test for the presence of sugar, starch, proteins and fats in suitable plant and animal materials.
- Test for the presence of urea in urine.
- Test for the presence of bile salts in urine.
B. Study/Observation of the following (spotting)
- Tissues and diversity in shape and size of plant cells (palisade cells, guard cells, parenchyma, collenchyma, sclerenchyma, xylem and phloem) through temporary and permanent slides.
- Different modifications in roots, stems, and leaves.
- Different types of inflorescence (cymose and racemose).
- Human skeletal system and different types of joints with the help of virtual images/models only.
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