The CBSE class 12 board exams act as a ladder for students preparing to get admission to their dream colleges. So students must utilize every single second of this moment to prepare for the class 12 board exams effectively, their today’s hard work and dedication will pay off, and it truly does! Every year, we come across numerous top achievers, so don’t students wonder how they got there? The very easy explanation is that it was all because of their genuine effort and commitment. They were ambitious in their aspirations and enthusiastic about their future academic career, and they did everything to make it happen in reality.
Now the question arises, how do they intend to accomplish all of this? The simple answer to this question is a well-examined syllabus and planning the future preparations accordingly with full concentration. For comprehensive answers use NCERT Solutions for Class 12 Biology.
CBSE Class 12 Biology Term 2: Exam Pattern
Understanding the CBSE class 12 Biology exam pattern can surely help students improve their time management strategies, which will ultimately help students in preparing for the Biology exam. It is the most effective technique to begin CBSE Class 12 Term 2 preparation.
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Types of Questions | Percentage Chances |
Demonstrate Knowledge and Understanding | 50% |
Application of Knowledge / Concepts | 30% |
Analyze, Evaluate and Create | 20% |
NOTE: Students would be given internal choices.
CBSE Class 12 Biology Term 2 Syllabus and Unit-Wise Weightage
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Also See: Best Books for CBSE Class 12 | CBSE Class 12 Syllabus | CBSE Class 12 Term 2 Syllabus
Class 12 Biology: Practicals and Weightage for CBSE Exam
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Part A. List of Experiments
TERM 2: 3. Prepare a temporary mount of onion root tip to study mitosis. 4. Collect water from two different water bodies around you and study them for pH, clarity and presence of any living organism 5. Collect and study soil from at least two different sites and study them for texture, moisture content, pH and water holding capacity. Correlate with the kinds of plants found in them.
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Part B. Study/observation of the following (Spotting)
TERM 2: B.6 Common disease-causing organisms like Ascaris, Entamoeba, Plasmodium, any fungus causing ringworm through permanent slides, models or virtual images. Comment on symptoms of diseases that they cause. B.7 Two plants and two animals (models/virtual images) found in xeric conditions. Comment upon their morphological adaptations. B.8 Two plants and two animals (models/virtual images) found in aquatic conditions. Comment upon their morphological adaptations. |
Also See: CBSE Class 12 Biology High Scoring Chapters
CBSE Class 12 Biology Important Topics Chapter-Wise
Unit 8: Biology and Human Welfare
- Chapter 8: Human Health and Diseases
- Pathogens; parasites causing human diseases (malaria, dengue, chikungunya, filariasis, ascariasis, typhoid, pneumonia, common cold, amoebiasis, ringworm) and their control; Basic concepts of immunology – vaccines; cancer, HIV and AIDS; Adolescence – drug and alcohol abuse.
- Chapter 10: Microbes in Human Welfare
- Microbes in food processing, industrial production, sewage treatment, energy generation, and microbes as biocontrol agents and biofertilizers. Antibiotics; production and judicious use.
Unit 9: Biotechnology and its Applications
- Chapter 11: Biotechnology – Principles and Processes
- Genetic Engineering (Recombinant DNA Technology)
- Chapter 12: Biotechnology and its Application
- Application of biotechnology in health and agriculture: Human insulin and vaccine production, stem cell technology, gene therapy; genetically modified organisms – Bt crops; transgenic animals; biosafety issues, biopiracy, and patents.
Unit 10: Ecology and Environment
- Chapter 13: Organisms and Populations
- Organisms and environment: Habitat and niche, population and ecological adaptations; population interactions – mutualism, competition, predation, parasitism; population attributes – growth, birth rate, and death rate, age distribution.
- Chapter 15: Biodiversity and its Conservation
- Biodiversity – Concept, patterns, importance; biodiversity loss; biodiversity conservation; hotspots, endangered organisms, extinction, Red Data Book, Sacred Groves, biosphere reserves, national parks, wildlife, sanctuaries and Ramsar sites.
CBSE Class 12 Biology Term 2: Short Notes
Chapter 8- Human Health and Disease
The chapter discusses natural health, the importance of maintaining optimum health, types, diseases, treatment and prevention, immunity, and various forms. It addresses some diseases such as AIDS, cancer, and teenage difficulties.
Also See: Human Reproduction Class 12 Revision Notes
Use NCERT Solution for Class 12 Biology Chapter 8 – Human Health and Disease
Chapter 10- Microbes in Human Welfare Solutions
The chapter discusses microbes, sometimes known as microorganisms or microscopic organisms because they are only visible under microscopic apparatus. These microbes are invisible to the naked since they are small living beings that exist all around us in the air, water, soil, etc.
Use NCERT Solution for Class 12 Biology Chapter 10 – Microbes in Human Welfare Solutions
Chapter 11- Biotechnology: Principles and Processes
The chapter provides an in-depth examination of the principles and procedures involved in biotechnology.
Use NCERT Solution for Class 12 Biology Chapter 11 – Biotechnology: Principles and Processes
Chapter 12- Biotechnology and its Applications
The chapter discusses how humans have been using biotechnology to enhance the quality of their lives, particularly in food productivity and sustainability of human health.
Use NCERT Solution for Class 12 Biology Chapter 12 – Biotechnology and its Applications
Chapter 13- Organisms and Populations
Here students will learn about organisms and populations. The chapter deals with important topics such as organisms and their environments, niches, and significant abiotic elements impacting organisms and their environments like temperature, water, light, soil, etc.
Use NCERT Solution for Class 12 Biology Chapter 13 – Organisms and Populations
Chapter 15- Biodiversity and Conservation
Students will understand the value and importance of biodiversity, including its various forms, processes, evolution, deterioration, and conservation.
Use NCERT Solution for Class 12 Biology Chapter 15 – Biodiversity and Conservation
Also See:
CBSE Class 12 Biology Sample Papers for Term-2 Exam 2023: Check How to Download
CBSE Class 12 Biology Important Questions
1. Explain why a virus is referred to as a retrovirus?
A virus is called a retrovirus because, like HIV, it is made up of RNA and performs reverse transcription to make DNA.
2. What exactly is Cry Protein? Specify the organism’s name that creates the protein. How did humans profit from this protein?
Bacillus thuringiensis, a soil bacteria, produces a crystalline protein known as the ‘Cry protein.’ This protein is poisonous to the larvae of insects such as mosquitoes, tobacco buds, and beetles. When the insect consumes the cry protein, it converts from an inactive protoxin to an active toxin. Insects’ alkaline gut pH is capable of dissolving cry protein crystals. When the activated version of cry protein binds to the midgut of insects, it produces pores in the cell’s intestinal epithelial, resulting in cell lysis and the insect’s death. This protein’s gene contains bacteria and is absorbed into crops to protect them from insects.
3. What exactly is a bioreactor? What are the benefits of a Stirred tank Bioreactor versus a Shake flask?
Bioreactors are vessels that comprise multiple organisms or chemical compounds that undergo chemical processes that create biologically active chemicals. They are enormous vessels in which raw ingredients are biologically transformed into specific proteins utilising plants, microbial, animal, or human cells. The following are the advantages of a Bioreactor versus a shake flask:
- It provides optimal circumstances for the intended product’s growth, such as temperature, pH, etc.
- It includes an agitation system, a temperature control system, a flow control system, and a pH control system.
4. What role does the enzyme “Ligase” play in the genetic modification?
In genetic modification, the enzyme “Ligase” works as a molecular structure that aids in binding two sections of DNA together. This process of linking the two pieces of DNA necessitates ATP and results in the development of a phosphodiester bond between two cohesive ends of DNA.
For more important questions and answers, students can check the NCERT Solutions for Class 12 Biology.
Best Books for CBSE Class 12 Biology Term 2 Preparation
Biology is a complete theoretical subject. Students need to make extra efforts to obtain high grades in CBSE class 12 Biology term 2 exams. Here is a combined list of the best reference books that students can use to score well in the class 12 Biology board exam.
Also Read: CBSE Class 12 Term 2 Study Plan & Strategies | CBSE Class 12 Preparation Tips
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CBSE Class 12 Biology Preparation Tips
Set a daily 5 hours routine
Biology is a highly demanding subject. Make a routine to study for at least 5 hours per day. However, students should not overburden themselves in the process. Take small rests between timetables.
Prioritize difficult chapters first
Prioritizing the chapters based on their difficulty level can help students prepare for the exam swiftly and efficiently. Students must first cover the more difficult topics and then move on to the easier ones. Using this way, there is no probability of missing any crucial topics, and students will be able to complete the syllabus and revise each chapter on time.
Plan a study schedule
An effective study schedule can assist students in planning their Biology exam preparation. Thus, creating an excellent study schedule and then sticking to it is always beneficial, and it will keep students stress-free and always on track.
Practice important diagrams
Biology is a subject of diagrams and detailing. Practicing all the important diagrams can help students ace their CBSE class 12 Biology exam. Having a good command of diagrams will help students properly brief the explanations.
Read and revise
To fully grasp the concept, students must thoroughly read all of the chapters. Biology is a theoretical subject; students can get good grades in the exam only if they understand it well. So, students must use the reading and writing approaches to revise their topics.
Conclusion
The CBSE will be administering the class 12 board exam in two terms. Students must use the CBSE class 12 Biology syllabus to prepare effectively for the term 2 board exams because their success in the CBSE class 12 board exams will determine their future academic careers. Using the CBSE class 12 Biology syllabus, students will get complete information about the units, exam pattern, unit-wise weightage and the question format.
The CBSE class 12 biology syllabus can help students prepare for various future medical entrance exams such as the NEET. As a result, students must study the Biology syllabus judiciously. The CBSE class 12 Biology syllabus and unit-wise weightage can help students work on their weaknesses and strengths effectively. Thus students must set a daily schedule according to the syllabus and work on it with full dedication and hard work. Students must refer to the NCERT Solutions for Class 12 Biology for a better explanation.
Also See:
CBSE 10th & 12th Result: How CBSE Plans to Check Papers Through Color Coding Answer Sheet
FAQs about CBSE Class 12 Biology Term 2 Syllabus
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