CBSE Class 11 Syllabus 2022-23 BioTechnology

BIOTECHNOLOGY
2022-23

An unprecedented growth of human knowledge in the field of Biological Sciences coupled
with equally significant developments in the field of technology have brought significant
changes into existing social and economic systems. The emerging field of Biotechnology is
likely to further enhance the applications of Science and Technology for human welfare.
Modern Biotechnology processes encompass a wide range of new products such as
antibiotics, vaccines, monoclonal antibodies and many more. Furthermore, developments in
recombinant DNA technology have yielded numerous new useful products in the fields of
healthcare and agriculture. The present syllabus takes care of all these aspects. Due emphasis
has been laid on familiarizing the learners with the fundamental concepts, basic techniques
and their applications. It is expected that the knowledge gained through the study of different
topics and the skills acquired through the prescribed practical work will make the learners
competent to meet the challenges of academic as well as professional courses after studying
the subject at senior secondary stage.

Objectives
The broad objectives of teaching Biotechnology at senior secondary level are to:
 help the learners know and understand basic facts and concepts of the subject at
elementary stage.
 expose the students to different basic processes and basic techniques used in
Biotechnology.
 familiarize the learners to understand the relationship of the subject to health,
nutrition, environment, agriculture and industry, etc.
 develop conceptual competence in the learners so as to cope up with professional
courses in future career.
 acquaint students with different applications of Biotechnology in everyday life.
 develop an interest in students to study Biotechnology as a discipline.

CLASS- XI (2022-23)
COURSE STRUCTURE
One Paper Time: 3 hrs.
Max. Marks 70+30
Units Marks
Unit- I Biotechnology: An overview 5
Unit-II Molecules of Life 20
Unit-III Genetics and Molecular Biology 20
Unit-IV Cells and Organisms 25
Practical 30
Total 100

1

CLASS XI
(Theory)

One Paper Time: 3 hrs.
Total Marks: 70

Unit-I Biotechnology: An overview 5 Marks

Chapter 1: Biotechnology: An Overview

Historical Perspectives, Technology and Applications of Biotechnology, Global market and
Biotech Products.

Unit-II Molecules of Life 20 Marks

Chapter 1: Biomolecules: Building Blocks

Building Blocks of Carbohydrates - Sugars and their Derivatives, Building Blocks of
Proteins - Amino Acids, Building Blocks of Lipids - Simple Fatty Acids, Glycerol and
Cholesterol, Building Blocks of Nucleic Acids – Nucleotides.
Chapter 2: Macromolecules: Structure & Function

Carbohydrates - The Energy Givers, Proteins - The Performers, Enzymes - The Catalysts,
Lipids and Biomembranes - The Barriers, Nucleic Acids - The Managers
Unit-III Genetics and Molecular Biology 20 Marks

Chapter 1: Concepts of Genetics

Historical Perspective, Multiple Alleles, Linkage and Crossing Over, Genetic Mapping.

Chapter 2: Genes and Genomes: Structure and Function

Discovery of DNA as Genetic Material, DNA Replication, Fine Structure of the Genes, From
Gene to Protein, Transcription – The Basic Process, Genetic Code, Translation, Mutations,
Human Genetic Disorders.
Unit IV: Cells and Organisms 25 Marks

Chapter 1: The Basic Unit of Life

Cell Structure and Components, Organization of Life

Chapter 2: Cell Growth and Development

Cell Division, Cell Cycle, Cell Communication, Nutrition, Reproduction, Immune Response in
Animals.

2

PRACTICALS

Note: Every student is required to do the following experiments during the academic
session.

1. Preparation of buffers and pH determination
2. Sterilization techniques
3. Preparation of bacterial growth medium
4. Cell counting
5. Sugar Estimation using Di Nitro Salicylic Acid test (DNS test)
6. Assay for amylase enzyme
7. Protein estimation by biuret method

Scheme of Evaluation

Time: 3 Hours Max. Marks 30

The scheme of evaluation at the end of session will be as under:
Two experiments : 20
Marks Viva on experiments : 5
Marks Practical record : 5 Mark