NCERT Exemplar for Class 11 Biology - Biomolecules - Free PDF Download

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NCERT Exemplar for Class 11 Biology - Biomolecules - Free PDF Download

NCERT Exemplar Free PDF Download from Vedantu

For this topic, NCERT is providing the best resource to help you for class 11 biology. NCERT provides a perfect platform to revise, learn and excel. A set of NCERT Exemplar books to prepare for your classroom exams is what Vedantu provides. NCERT exemplar books are written by experts on the subject. All the NCERT Exemplar books are designed to provide the right understanding, to learn, understand and learn with the perfect study.

NCERT Exemplar for class 11 biology-biomolecules book is created with easy study notes. These study notes are perfect for quick revision and exam preparations. These study notes are based on real questions that you may find in the examination. It also allows you to re-examine your knowledge.

The exemplar text is divided into four chapters and consists of a question bank in the form of short paragraphs with a series of question options. The options cover several subtopics including:

Biology in action
Living systems
Cells and organelles
Biochemistry and Biotechnology
Human Biology
Genetic Engineering and Biomedical Technology

The question bank consists of three parts: A set of questions that test the students on what they have learnt and are expected to know, questions that test their understanding and finally questions that cover the areas where they have not been tested and are therefore in need of attention. In this regard, the question bank is divided into several groups for each topic. For example, questions cover various aspects of each topic in the section of cells and organelles and questions on the various aspects of each topic in the section of biochemistry and biotechnology.

The authors have taken time to ensure that the content is up to date and have carefully revised the text, incorporating recent developments. They have kept the text compact to ensure that even as it is read the time spent reading is minimised.

Free PDF download of NCERT Exemplar for Class 11 Biology Chapter 9 - Biomolecules solved by expert Biology teachers on Vedantu.com as per NCERT (CBSE) Book guidelines. All Chapter 9 - Biomolecules exercise questions with solutions to help you to revise the complete syllabus and score more marks in your examinations.

Here Are Some Important Concepts Explained in This Section:

Bio – Biomolecules The chemical compounds of life are called biomolecules. They may range from small nucleotides and proteins to large carbohydrate and fat molecules. Biomolecules are the basic units of life; living systems are formed by their chemical combination. They are the basic constituents of matter and the basic unit of life. The living cell, or the cell-in-a-box, which lives and multiplies, is formed by the chemical union of molecules.

The living cell is the unit of life. It is formed by the chemical union of chemical molecules. It is the most important component of the living organism. The cell membrane is made of lipids. The lipids are classified into four major types viz, simple, acidic, basic and amide. Some lipids are soluble and others insoluble. The insoluble or insoluble lipids are insoluble in water. When they mix with water, they form a soft or viscous mass called lipogel. Most of the lipids are used in the formation of the cell membrane and the other cellular constituents. The fatty acids also assist in protecting the cell membrane and the other cellular constituents.

Biomolecules and Cell

Biomolecules are organic molecules that have a molecular mass of more than 100 daltons. They are essential building blocks for all living things. They may occur as part of a molecule or occur separately. They may exist as a single molecule or may form a complex with other molecules. Biomolecules are molecules that carry genetic information. They are called molecules because they carry genetic information of cells and they are involved in regulating the growth and development of cells. When a fertilized egg cell is formed after the union of spermatozoa and egg cell, a new organism is formed which is called a zygote. The zygote develops into an embryo, from which a new individual, called a foetus, is formed. The biomolecules present in the foetus determine the kind of animal from which it will be born.

The basic structure of a cell, which contains cytoplasm, a nuclear membrane and various organelles, is called an organelle. All the functions required by a cell to sustain its life are carried out in the cell. To understand the role of biomolecules, it is necessary to understand the basic structure of a cell and the functions that it performs.

The Living Cell

In every living cell, there is some type of life. The presence of chemical union or combination of chemical compounds results in the formation of a living organism or cell. Every living cell is characterised by different forms and different functions.

FAQs on NCERT Exemplar for Class 11 Biology - Biomolecules - Free PDF Download

1. What is the NCERT Exemplar book?

The NCERT exemplar book is a new revision of the NCERT textbook for Class 11 Biology. Class 11 biology is one of the most complex subjects and focuses on coverage of biology, biochemistry and molecular biology. It is available on Vedantu for free in the PDF version. This study material truly helps students cover the subjects with ease and complete understanding. So one must refer to it.

2. Why does the NCERT Class Biology syllabus change every year?

The changes are being made to provide an updated and comprehensive coverage of the syllabus in the subject. While retaining the same NCERT textbook, the syllabus is being simplified and the content is being made more understandable. There will be new chapters and new sub-chapters in the new textbook and existing topics will be re-organized into a broader chapter structure. The new topics will also focus on concepts rather than facts. There will be more emphasis on biology, more questions on the role of biological science in the world and increased emphasis on the latest developments in the field of biology. The new textbooks will also include current topics such as Nanotechnology, Genetic Engineering, Climate Change, Development and Health. This should help students to get a better understanding of the world and the problems that they are likely to face in their daily lives. For details on the topics excluded from the syllabus after the pandemic, you can check out the detailed syllabus on Vedantu or the official CBSE website.

3. What is a protein as per Class 11 Biology?

A protein is a complex of amino acids that plays a significant role in our biological structure and function. Proteins are involved in all the physiological processes of the human body, such as metabolism, growth, immune system, and even the building and repairing of the tissues of our body. Proteins can also exist in the free form or as part of a complex or organelle.

4. What are the different types of proteins described in the NCERT exemplar?

Proteins are classified into different groups based on their shape, function, charge, and amino acid composition. Proteins are classified into nine types: α-helical, β-sheet, β-pleated sheet, α-proteins, β-proteins, elastin-like proteins, coiled-coil, poly alpha-amino acids, and polypeptides.

5. What is a polypeptide in Class 11 Biology?

A polypeptide is a linear molecule formed from a chain of amino acids. A polypeptide is a term that covers several different structures, including oligopeptides, peptides, and peptide-containing molecules.