Biology Chapters for RRB Group D: Preparing for the RRB Group D Exam means you’ll need to be comfortable with a broad set of topics – especially within the General Science section, Biology (life sciences) plays a key role in the syllabus for Group D. According to the official syllabus, the General Science part is based on class 10 level Physics, Chemistry and Life Science. In this article, we’ll walk you through the must-know biology chapters for RRB Group D, how they’re grouped, and much more.
Why Biology Matters for RRB Group D?
Biology matters for the Group D examination as the general science section accounts for 25 marks. Before diving into chapter lists, it’s helpful to understand why biology deserves focused attention:
- Within the General Science section in the RRB Group D Exam Pattern of 25 marks, Biology (Life Sciences) often carries a significant portion (approximately 40-50 %) of the questions.
- Questions are asked at a basic level (class 10) but with direct relevance to everyday phenomena (diseases, environment, human body) – making them easier to score with good preparation.
- Biology topics overlap with current affairs (health, environment, ecology), which may help improve accuracy in the section if you stay updated.
What are the important Biology Chapters for RRB Group D Exam?
The important biology chapters from the RRB Group D Syllabus include botany, zoology, genetics, and much more. Given below is a table that divides the chapters you should focus on into 3 broad areas: Botany (plants), Human Biology & Ecology/Environment.
| Chapter Group | Important Topics | Why its Important |
| Botany (Plant Biology) | Classification of Plant Kingdom; Plant Morphology; Plant Tissues; Photosynthesis; Plant Hormones; Plant Diseases; Plant Ecology & Pollution. | These are common MCQ topics; many previous papers ask simple facts. |
| Human Biology / Zoology | Classification of Animal Kingdom; Animal Tissues; Human Blood, Organs & Organ Systems; Human Diseases; Nutrients and Nutrition. | Questions on human body systems and diseases recur in exams; good for straightforward marks. |
| Genetics & Evolution + Ecology/Environment | Cytology (cell structure); Genetics & Heredity; Organic Evolution; Ecology & Environment; Pollution; Natural Resources. | Though slightly conceptual, the exam keeps it basic; awareness of environmental terms adds value for current affairs too. |
Chapter-Wise Checklist for Biology Chapters of RRB Group D
The list given below is a detailed checklist you can use to track your preparation. It is recommended to study each topic in detail to score well and qualify for the CBT examination.
Botany:
- Classification of Plant Kingdom
- Plant Morphology (roots, stems, leaves, flowers)
- Plant Tissues (meristematic vs permanent)
- Photosynthesis & Plant Nutrition
- Plant Hormones & Growth Regulators
- Plant Diseases (common ones, pathogens)
- Ecology in Plant Context & Pollution Effects
Human Biology / Zoology:
- Classification of Animal Kingdom
- Animal Tissues
- Human Blood & Circulatory System
- Human Digestive, Respiratory, Excretory Systems
- Human Diseases (viral, bacterial, lifestyle) & Nutrients/Nutrition
- Organ Systems: Heart, Kidney, Brain – basics of structure & function
Genetics, Evolution & Environment
- Cell Structure & Cytology (cell organelles, cell division)
- Genetics & Heredity (basic terms: genes, chromosomes, inheritance)
- Organic Evolution (basic evolutionary terms, adaptation)
- Ecology & Environment (ecosystem, food chain/web, human impact)
- Pollution & Natural Resources (types of pollution, conservation)
What tips should I follow to score well in the Biology section?
Candidates must refer to the Class 10 NCERT textbooks for effective preparation of the biology subjects. Some of the other important tips are also given below:
- Create flash cards for key terms (e.g., hormones, blood groups, plant diseases) – very handy for quick revision.
- Practice MCQs chapter-wise after reading; it helps reinforce memory.
- Relate biology topics to current affairs: e.g., environment/pollution topics, disease outbreaks – these often help increase recall.
- Maintain a revision schedule: Plan 2-3 chapters per study session and revisit completed chapters every week to avoid forgetting.
- Attempt previous years’ RRB Group D question papers for the biology part – it helps you identify recurring topic types.
What should be my Preparation Strategy for RRB Group D Exam 2026?
The ideal preparation strategy should be to distribute the topics according to their importance. Also, if you spot weak areas (say, you struggle with plant hormone concepts or ecology), allocate more time there rather than evenly spreading across all topics. Since time is often limited, prioritise like this:
| Priority Level | Study Duration | Subject Area | Topics Covered | Focus Strategy |
| High Priority | Day 1–7 | Human Biology | Blood, Human Organ Systems, Human Diseases | Straightforward concepts, high-frequency topics in exams. Focus on clear understanding and repeated revision. |
| Medium Priority | Day 8–14 | Botany | Plant Morphology, Plant Tissues, Photosynthesis | Mostly factual and theory-based. Practice diagram-based and fact-based questions regularly. |
| Lower Priority | Day 15–20 | Genetics & Ecology/Environment | Basic Genetics, Heredity, Environmental Concepts, Ecology | Slightly less frequent but important. If you have prior knowledge, dedicate solid revision time and practice application-based questions. |
FAQs
In the General Science section of 25 marks, around 10–12 questions are usually from Biology. The exact number varies slightly every year, but Life Science topics consistently hold a significant weightage in the exam.
Some of the most important Biology chapters for RRB Group D include:
Human Body and Organ Systems
Nutrition and Digestion
Diseases and Immunity
Cell Structure and Functions
Photosynthesis and Plant Nutrition
Ecology and Environment
These chapters frequently appear in previous years’ question papers.
Yes. Class 9th and 10th NCERT Science books are more than sufficient for Biology preparation. The RRB Group D Biology questions are based on basic concepts, so studying NCERT thoroughly and practicing MCQs is the best strategy.
No. Biology questions are generally easy to moderate in difficulty. They test factual knowledge and basic understanding of topics like human anatomy, plants, and diseases – not advanced scientific theories or diagrams.
Given below is a simple 3-step revision plan:
Revise NCERT summaries for each chapter.
Practice previous year Biology questions from RRB Group D and NTPC papers.
Use short notes or flashcards for quick recall of terms like hormones, diseases, organs, and processes.
Hello! This is Arijit Dutta. I am a skilled Content Writer at Oliveboard with nearly 3+ years of experience in crafting engaging, informative, and exam-focused content for the Railways Domain. With a strong command of language and a keen understanding of learner needs, I contribute significantly to Oliveboard’s mission of delivering high-quality educational resources. Passionate about clear communication and continuous learning, I consistently create content that helps government job aspirants achieve their goals. Outside of work, I enjoy playing cricket and listening to music, which helps me stay balanced and creative in my professional journey.
