Biology is an important part of General Awareness and General Science in competitive exams such as SSC, Railway and other exams. It deals with living organisms, plants, animals, the human body, diseases, nutrition, genetics and the environment. Most Biology questions asked in these exams are direct and fact-based, although some questions may test applications of basic concepts or connect Biology with current developments in health and science.
Download Biology Questions PDF
Candidates preparing for SSC, Railways, State PSC, Police and other competitive exams can download the Biology Questions PDF for quick revision and practice. The PDF includes important Biology topics, exam-level MCQs, answers and explanations covering the human body, vitamins, diseases, cells, genetics, plant biology, nutrition and other frequently asked areas.
Practice Biology Questions Live
Practice the Biology questions below to understand the type and difficulty level commonly seen in SSC, Railway and other competitive exams. These questions cover important topics such as cells, human body, blood, plant tissues, vitamins, diseases and basic genetics.
Q1. Which organelle is known as the powerhouse of the cell?
Q2. Which structure controls the entry and exit of substances in a cell?
Q3. Which cell organelle contains chlorophyll in green plants?
Q4. The basic structural and functional unit of life is the:
Q5. Which organelle is primarily responsible for protein synthesis?
Q6. Which part of the cell contains chromosomes?
Q7. The cell wall of plants is mainly composed of:
Q8. Which organelle is associated with intracellular digestion?
Q9. Which type of cell lacks a true nucleus?
Q10. Which tissue connects muscle to bone?
Q11. Which tissue connects bone to bone?
Q12. Which tissue transports water and minerals in plants?
Q13. Which tissue transports prepared food in plants?
Q14. Which blood cells primarily transport oxygen?
Q15. Which pigment in red blood cells carries oxygen?
Quiz Summary
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What is Biology in General Awareness/General Science?
Biology is the branch of science concerned with living organisms, their structure, functions, growth, reproduction, evolution and interaction with the environment. In competitive exams, Biology questions commonly cover:
- Human anatomy and physiology
- Vitamins, nutrition and deficiency diseases
- Communicable and non-communicable diseases
- Cells and cell organelles
- Plant physiology
- Genetics and heredity
- Human reproduction
- Ecology and environment
- Microorganisms
Biology General Awareness/General Science Important Topics
Candidates should prioritise the following areas while preparing Biology for competitive exams:
| Topic | What to Prepare |
| Cell Biology | Cell structure, organelles and their functions |
| Human Body | Major organs and body systems |
| Vitamins | Sources, functions and deficiency diseases |
| Diseases | Causes, vectors and pathogens |
| Blood | RBCs, WBCs, platelets and blood groups |
| Digestive System | Organs, enzymes and digestion |
| Respiratory System | Lungs, alveoli and gaseous exchange |
| Nervous System | Brain, spinal cord and neurons |
| Endocrine System | Hormones and glands |
| Plant Biology | Photosynthesis, tissues and plant hormones |
| Genetics | Mendel, DNA, RNA, genes and chromosomes |
| Nutrition | Carbohydrates, proteins, fats and minerals |
| Reproduction | Basic human and plant reproduction |
| Ecology | Food chains, ecosystems and environmental concepts |
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I’m Mahima Khurana, a writer with a strong passion for creating meaningful, learner-focused content especially in the field of competitive exam preparation. From authoring books and developing thousands of practice questions to crafting articles and study material, I specialize in transforming complex exam-related topics into clear, engaging, and accessible content. I have first hand experience of 5+ months in SSC Exams. Writing, for me, is not just a skill but a way to support and guide aspirants through their preparation journey one well-written explanation at a time.