General Science • Biology

Biology – Topic Wise Practice

Study SSC, RRB and other government exam-focused Biology MCQs with smart chapter-wise coverage and easy subtopics.

Cell • Human Body • Diseases • Plants • Genetics
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CHAPTER 1

Basics of Life & Cell

Most asked foundation — cell organelles, tissues, basic terms and life processes at exam level.

Cell
🧠 Biology Basics Living vs non-living, key definitions. → 🧫 Cell Structure Prokaryotic vs eukaryotic core facts. → ⚙️ Cell Organelles Mitochondria, nucleus, ribosomes etc. → 🧵 Human Tissues Epithelial, connective, muscular, nervous. → 🌿 Life Processes (Basic) Respiration, digestion, excretion overview. →
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CHAPTER 2

Human Body Systems

Highest scoring SSC/RRB biology — organs, functions, hormones and everyday body facts.

Human Body
🍽️ Digestive System Organs, enzymes, bile, absorption. → 🫁 Respiratory System Lungs, alveoli, oxygen transport. → 🩸 Circulatory System Heart, blood groups, vessels. → 💧 Excretory System Kidney, nephron, urine formation. → 🧠 Nervous System Brain parts, reflex, neurons. → 🧪 Endocrine & Hormones Thyroid, insulin, adrenaline basics. →
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CHAPTER 3

Nutrition, Diseases & Immunity

Vitamins, deficiency diseases, communicable vs non-communicable and basic immunity lines.

Health
🥗 Nutrition Basics Carbs, proteins, fats, micronutrients. → 💊 Vitamins & Minerals Sources + SSC/RRB deficiency MCQs. → 📌 Deficiency Diseases Night blindness, rickets, anemia etc. → 🦠 Communicable Diseases TB, malaria, dengue, cholera basics. → 💉 Immunity & Vaccines Antibodies, types of immunity. →
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CHAPTER 4

Plants & Ecology

Photosynthesis, plant parts, hormones and basic ecology asked in GS papers.

Plants
🌿 Plant Basics Roots, stems, leaves and functions. → ☀️ Photosynthesis Equation, factors, chlorophyll facts. → 🧪 Plant Hormones Auxin, gibberellin, ethylene basics. → 🌍 Ecosystem & Ecology Food chain, trophic levels, cycles. →
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CHAPTER 5

Genetics, Reproduction & Biotechnology

Very simplified exam-level concepts — DNA, heredity, reproduction basics and biotech terms.

Genetics
🧬 Genetics Basics Genes, traits, Mendel overview. → 🧫 DNA & RNA Structure + one-line questions. → 👶 Human Reproduction (Basic) Fertilization, hormones, stages. → 🧪 Biotechnology (Exam Level) GM crops, cloning, DNA fingerprinting. →