{"id":197,"date":"2026-06-13T07:00:20","date_gmt":"2026-06-13T01:30:20","guid":{"rendered":"https:\/\/superpahal.com\/blog\/?p=197"},"modified":"2026-07-02T21:09:47","modified_gmt":"2026-07-02T15:39:47","slug":"ssc-cgl-2026-biology-syllabus","status":"publish","type":"post","link":"https:\/\/superpahal.com\/blog\/ssc-cgl-2026-biology-syllabus\/","title":{"rendered":"SSC CGL 2026 Biology Syllabus \u2014 Complete Topic List, PYQ Weightage and Preparation Strategy"},"content":{"rendered":"

In SSC CGL 2026 General Awareness, Biology contributes 4 to 7 questions every single exam<\/strong> \u2014 that is 8 to 14 marks out of 50. And the best part? The same Biology topics repeat year after year.<\/strong><\/p>\n

Most aspirants either skip Biology entirely or try to read everything without a strategy. Both approaches fail. The correct approach is to study only the high-frequency topics<\/strong> \u2014 and this guide tells you exactly which those are, based on PYQ analysis from 2018 to 2025.<\/p>\n

\ud83c\udfaf Practice with real SSC CGL PYQ papers \u2014 free:<\/strong> SuperPahal Academy \u2014 Free Mock Tests<\/a><\/p>\n

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Biology in SSC CGL 2026 \u2014 How Many Questions and How Much Weightage?<\/h2>\n\n\n\n\n\n\n
Section<\/th>\nTotal Questions<\/th>\nBiology Questions (Approx)<\/th>\nMarks<\/th>\n<\/tr>\n<\/thead>\n
General Awareness (Tier 1)<\/td>\n25<\/td>\n4 \u2013 7 questions<\/strong><\/td>\n8 \u2013 14 marks<\/td>\n<\/tr>\n
General & Financial Awareness (Tier 2)<\/td>\n25<\/td>\n2 \u2013 4 questions<\/td>\n6 \u2013 12 marks<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

In Tier 1, Biology consistently accounts for 20\u201328% of the entire GA section.<\/strong> That makes it the single most important science subject in SSC CGL \u2014 more than Physics and Chemistry combined.<\/p>\n

\ud83d\udccc Read: SSC CGL 2026 General Awareness \u2014 Complete Topic-wise Guide to Score 45+<\/a><\/p>\n

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SSC CGL 2026 Biology Syllabus \u2014 Complete Topic List<\/h2>\n

The Biology syllabus in SSC CGL falls under the General Awareness section. There is no separate Biology paper \u2014 all questions appear within GA. Here is the complete topic-wise breakdown:<\/p>\n

1. Cell Biology<\/h3>\n\n\n\n\n\n\n\n\n
Topic<\/th>\nPYQ Frequency<\/th>\nPriority<\/th>\n<\/tr>\n<\/thead>\n
Cell structure and function<\/td>\nMedium<\/td>\n\ud83d\udfe1 Medium<\/td>\n<\/tr>\n
Cell organelles (Mitochondria, Ribosome, Nucleus, etc.)<\/td>\nHigh<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n
Cell division \u2014 Mitosis and Meiosis<\/td>\nMedium<\/td>\n\ud83d\udfe1 Medium<\/td>\n<\/tr>\n
Prokaryotic vs Eukaryotic cells<\/td>\nLow<\/td>\n\ud83d\udfe2 Low<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

2. Human Physiology \u2014 Most Important Topic<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Topic<\/th>\nPYQ Frequency<\/th>\nPriority<\/th>\n<\/tr>\n<\/thead>\n
Blood \u2014 components, functions, blood groups (ABO, Rh)<\/td>\nVery High<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n
Heart \u2014 structure, working, heartbeat<\/td>\nHigh<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n
Digestive system \u2014 organs and functions<\/td>\nHigh<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n
Respiratory system \u2014 lungs, breathing process<\/td>\nMedium<\/td>\n\ud83d\udfe1 Medium<\/td>\n<\/tr>\n
Nervous system \u2014 brain, spinal cord, neurons<\/td>\nMedium<\/td>\n\ud83d\udfe1 Medium<\/td>\n<\/tr>\n
Endocrine system \u2014 glands and hormones<\/td>\nHigh<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n
Excretory system \u2014 kidneys, urine formation<\/td>\nMedium<\/td>\n\ud83d\udfe1 Medium<\/td>\n<\/tr>\n
Skeletal system \u2014 bones and joints<\/td>\nLow<\/td>\n\ud83d\udfe2 Low<\/td>\n<\/tr>\n
Reproductive system \u2014 basics<\/td>\nLow<\/td>\n\ud83d\udfe2 Low<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

3. Nutrition \u2014 Vitamins and Minerals<\/h3>\n\n\n\n\n\n\n\n\n
Topic<\/th>\nPYQ Frequency<\/th>\nPriority<\/th>\n<\/tr>\n<\/thead>\n
Vitamins \u2014 types, sources, deficiency diseases<\/td>\nVery High<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n
Minerals \u2014 Calcium, Iron, Iodine, Zinc<\/td>\nHigh<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n
Proteins \u2014 sources and functions<\/td>\nMedium<\/td>\n\ud83d\udfe1 Medium<\/td>\n<\/tr>\n
Carbohydrates and Fats \u2014 basic functions<\/td>\nLow<\/td>\n\ud83d\udfe2 Low<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

4. Diseases \u2014 Bacterial, Viral, Protozoan<\/h3>\n\n\n\n\n\n\n\n\n\n\n
Topic<\/th>\nPYQ Frequency<\/th>\nPriority<\/th>\n<\/tr>\n<\/thead>\n
Viral diseases \u2014 COVID, Dengue, Polio, Rabies, Hepatitis<\/td>\nVery High<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n
Bacterial diseases \u2014 TB, Typhoid, Cholera, Leprosy<\/td>\nVery High<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n
Protozoan diseases \u2014 Malaria, Amoeba, Kala-azar<\/td>\nHigh<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n
Fungal diseases \u2014 Ringworm, Athlete’s foot<\/td>\nLow<\/td>\n\ud83d\udfe2 Low<\/td>\n<\/tr>\n
Deficiency diseases \u2014 Scurvy, Rickets, Beriberi, Pellagra<\/td>\nVery High<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n
Vaccines and their discoverers<\/td>\nHigh<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

5. Plant Biology<\/h3>\n\n\n\n\n\n\n\n\n\n
Topic<\/th>\nPYQ Frequency<\/th>\nPriority<\/th>\n<\/tr>\n<\/thead>\n
Photosynthesis \u2014 process, chlorophyll, light and dark reactions<\/td>\nHigh<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n
Plant hormones \u2014 Auxin, Gibberellin, Cytokinin<\/td>\nMedium<\/td>\n\ud83d\udfe1 Medium<\/td>\n<\/tr>\n
Plant nutrition \u2014 macro and micronutrients<\/td>\nLow<\/td>\n\ud83d\udfe2 Low<\/td>\n<\/tr>\n
Plant reproduction \u2014 sexual and asexual<\/td>\nLow<\/td>\n\ud83d\udfe2 Low<\/td>\n<\/tr>\n
Transpiration and osmosis<\/td>\nMedium<\/td>\n\ud83d\udfe1 Medium<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

6. Genetics and Heredity<\/h3>\n\n\n\n\n\n\n\n\n
Topic<\/th>\nPYQ Frequency<\/th>\nPriority<\/th>\n<\/tr>\n<\/thead>\n
DNA and RNA \u2014 structure and function<\/td>\nHigh<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n
Mendel’s laws of inheritance<\/td>\nMedium<\/td>\n\ud83d\udfe1 Medium<\/td>\n<\/tr>\n
Chromosomes \u2014 number in humans, sex chromosomes<\/td>\nHigh<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n
Genetic disorders \u2014 Down syndrome, Haemophilia, Colour blindness<\/td>\nMedium<\/td>\n\ud83d\udfe1 Medium<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

7. Ecology and Environment<\/h3>\n\n\n\n\n\n\n\n\n
Topic<\/th>\nPYQ Frequency<\/th>\nPriority<\/th>\n<\/tr>\n<\/thead>\n
Food chain and food web<\/td>\nMedium<\/td>\n\ud83d\udfe1 Medium<\/td>\n<\/tr>\n
Ecosystem \u2014 types and components<\/td>\nMedium<\/td>\n\ud83d\udfe1 Medium<\/td>\n<\/tr>\n
Biodiversity \u2014 hotspots, endangered species<\/td>\nMedium<\/td>\n\ud83d\udfe1 Medium<\/td>\n<\/tr>\n
Environmental pollution \u2014 types and effects<\/td>\nHigh<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

8. Classification of Living Organisms<\/h3>\n\n\n\n\n\n\n\n
Topic<\/th>\nPYQ Frequency<\/th>\nPriority<\/th>\n<\/tr>\n<\/thead>\n
Five kingdom classification<\/td>\nMedium<\/td>\n\ud83d\udfe1 Medium<\/td>\n<\/tr>\n
Scientific names of important plants and animals<\/td>\nHigh<\/td>\n\ud83d\udd34 High<\/td>\n<\/tr>\n
Fungi, Bacteria, Virus \u2014 basic features<\/td>\nMedium<\/td>\n\ud83d\udfe1 Medium<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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Most Repeated Biology Topics in SSC CGL \u2014 PYQ Analysis (2018\u20132025)<\/h2>\n

Based on analysis of SSC CGL previous year papers from 2018 to 2025, these are the top 10 most repeated Biology topics:<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Rank<\/th>\nTopic<\/th>\nTimes Appeared (2018\u20132025)<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\nVitamins \u2014 types, sources, deficiency diseases<\/td>\n20+ times<\/td>\n<\/tr>\n
2<\/td>\nHuman diseases \u2014 bacterial, viral, protozoan<\/td>\n18+ times<\/td>\n<\/tr>\n
3<\/td>\nBlood \u2014 groups, components, functions<\/td>\n16+ times<\/td>\n<\/tr>\n
4<\/td>\nHormones and endocrine glands<\/td>\n14+ times<\/td>\n<\/tr>\n
5<\/td>\nPhotosynthesis<\/td>\n12+ times<\/td>\n<\/tr>\n
6<\/td>\nDNA, RNA and chromosomes<\/td>\n11+ times<\/td>\n<\/tr>\n
7<\/td>\nCell organelles<\/td>\n10+ times<\/td>\n<\/tr>\n
8<\/td>\nScientific names of organisms<\/td>\n10+ times<\/td>\n<\/tr>\n
9<\/td>\nDigestive system<\/td>\n9+ times<\/td>\n<\/tr>\n
10<\/td>\nVaccines and their discoverers<\/td>\n8+ times<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Key insight:<\/strong> If you master only these 10 topics, you can confidently answer 4\u20135 Biology questions in every SSC CGL exam \u2014 without studying anything else.<\/p>\n

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High Priority vs Low Priority \u2014 What to Study First<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Study First \u2014 High Priority<\/th>\nStudy Later \u2014 Medium Priority<\/th>\nSkip or Skim \u2014 Low Priority<\/th>\n<\/tr>\n<\/thead>\n
Vitamins and deficiency diseases<\/td>\nCell structure basics<\/td>\nDetailed plant reproduction<\/td>\n<\/tr>\n
All human diseases (viral + bacterial)<\/td>\nMendel’s laws<\/td>\nSkeletal system details<\/td>\n<\/tr>\n
Blood groups and blood components<\/td>\nPlant hormones<\/td>\nCarbohydrate metabolism<\/td>\n<\/tr>\n
Hormones and glands<\/td>\nFood chain and ecosystem<\/td>\nDetailed fungal diseases<\/td>\n<\/tr>\n
Photosynthesis<\/td>\nGenetic disorders<\/td>\nPlant nutrient deficiencies<\/td>\n<\/tr>\n
DNA and RNA basics<\/td>\nClassification of organisms<\/td>\nAdvanced biotechnology<\/td>\n<\/tr>\n
Scientific names \u2014 key organisms<\/td>\nEnvironmental pollution<\/td>\nMuscle physiology details<\/td>\n<\/tr>\n
Vaccines and discoverers<\/td>\nDigestive enzymes<\/td>\nReproductive biology details<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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Quick Revision \u2014 Most Important Biology Facts for SSC CGL<\/h2>\n

Vitamins \u2014 Must Remember<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n
Vitamin<\/th>\nChemical Name<\/th>\nDeficiency Disease<\/th>\n<\/tr>\n<\/thead>\n
Vitamin A<\/td>\nRetinol<\/td>\nNight Blindness<\/td>\n<\/tr>\n
Vitamin B1<\/td>\nThiamine<\/td>\nBeriberi<\/td>\n<\/tr>\n
Vitamin B3<\/td>\nNiacin<\/td>\nPellagra<\/td>\n<\/tr>\n
Vitamin B12<\/td>\nCobalamin<\/td>\nAnaemia (Pernicious)<\/td>\n<\/tr>\n
Vitamin C<\/td>\nAscorbic Acid<\/td>\nScurvy<\/td>\n<\/tr>\n
Vitamin D<\/td>\nCalciferol<\/td>\nRickets (children), Osteomalacia (adults)<\/td>\n<\/tr>\n
Vitamin K<\/td>\nPhylloquinone<\/td>\nPoor blood clotting<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Key Diseases \u2014 Causative Organisms<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n
Disease<\/th>\nCaused By<\/th>\nSpreads Through<\/th>\n<\/tr>\n<\/thead>\n
Malaria<\/td>\nPlasmodium (Protozoa)<\/td>\nFemale Anopheles mosquito<\/td>\n<\/tr>\n
Dengue<\/td>\nDengue virus<\/td>\nAedes mosquito<\/td>\n<\/tr>\n
Tuberculosis (TB)<\/td>\nMycobacterium tuberculosis<\/td>\nAir droplets<\/td>\n<\/tr>\n
Typhoid<\/td>\nSalmonella typhi<\/td>\nContaminated food and water<\/td>\n<\/tr>\n
Rabies<\/td>\nRabies virus<\/td>\nAnimal bite<\/td>\n<\/tr>\n
Cholera<\/td>\nVibrio cholerae<\/td>\nContaminated water<\/td>\n<\/tr>\n
Polio<\/td>\nPoliovirus<\/td>\nContaminated water\/food<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Hormones and Glands \u2014 Quick Reference<\/h3>\n\n\n\n\n\n\n\n\n\n\n
Gland<\/th>\nHormone<\/th>\nFunction<\/th>\n<\/tr>\n<\/thead>\n
Pituitary<\/td>\nGrowth Hormone (GH)<\/td>\nControls body growth<\/td>\n<\/tr>\n
Thyroid<\/td>\nThyroxine<\/td>\nControls metabolism<\/td>\n<\/tr>\n
Pancreas<\/td>\nInsulin \/ Glucagon<\/td>\nControls blood sugar<\/td>\n<\/tr>\n
Adrenal<\/td>\nAdrenaline<\/td>\nFight or flight response<\/td>\n<\/tr>\n
Testes<\/td>\nTestosterone<\/td>\nMale characteristics<\/td>\n<\/tr>\n
Ovary<\/td>\nOestrogen \/ Progesterone<\/td>\nFemale characteristics<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Important Scientific Names<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n
Organism<\/th>\nScientific Name<\/th>\n<\/tr>\n<\/thead>\n
Human<\/td>\nHomo sapiens<\/td>\n<\/tr>\n
Tiger (National Animal)<\/td>\nPanthera tigris<\/td>\n<\/tr>\n
Peacock (National Bird)<\/td>\nPavo cristatus<\/td>\n<\/tr>\n
Lotus (National Flower)<\/td>\nNelumbo nucifera<\/td>\n<\/tr>\n
Mango (National Fruit)<\/td>\nMangifera indica<\/td>\n<\/tr>\n
Dog<\/td>\nCanis lupus familiaris<\/td>\n<\/tr>\n
Housefly<\/td>\nMusca domestica<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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Biology Preparation Strategy for SSC CGL 2026<\/h2>\n

Week 1 \u2014 Cover High-Priority Topics<\/h3>\n