TNUSRB Biology Important Questions

For the Tamil Nadu Uniformed Services Recruitment Board (TNUSRB) exams, biology is an essential component, especially for roles like police constable, jail warden, and fireman, as general science often forms part of the syllabus. Below are some important TNUSRB Biology topics and questions to focus on:

1. Human Anatomy and Physiology

• Important Topics:
  • Digestive system
  • Respiratory system
  • Circulatory system
  • Nervous system
  • Endocrine glands and hormones
• Sample Questions:
  1. Which organ is responsible for filtering blood in the human body?
  2. What is the function of insulin in the human body?
  3. Name the largest organ in the human body.

2. Cell Biology

• Important Topics:
  • Structure of a cell (prokaryotic and eukaryotic)
  • Cell organelles (functions of mitochondria, nucleus, ribosomes, etc.)
  • Cell division (mitosis and meiosis)
• Sample Questions:
  1. What is the powerhouse of the cell?
  2. Which organelle is responsible for protein synthesis?
  3. Differentiate between mitosis and meiosis.

3. Microorganisms

• Important Topics:
  • Bacteria, viruses, and fungi
  • Diseases caused by microorganisms
  • Vaccines and immunity
• Sample Questions:
  1. Which microorganism causes tuberculosis?
  2. Name a disease caused by viruses.
  3. Who discovered the first antibiotic, penicillin?

4. Plant Biology

• Important Topics:
  • Photosynthesis
  • Plant hormones (auxins, gibberellins, cytokinins)
  • Parts of a flower and pollination
• Sample Questions:
  1. What is the main pigment responsible for photosynthesis?
  2. Which part of the plant is involved in water transport?
  3. Name the male reproductive part of a flower.

5. Genetics

• Important Topics:
  • Mendel’s laws of inheritance
  • DNA and RNA structure
  • Genetic disorders (e.g., Down syndrome, hemophilia)
• Sample Questions:
  1. What is the full form of DNA?
  2. Who is known as the father of genetics?
  3. Define homozygous and heterozygous.

6. Health and Diseases

• Important Topics:
  • Communicable and non-communicable diseases
  • Deficiency diseases (e.g., scurvy, rickets)
  • First aid and public health awareness
• Sample Questions:
  1. What is the cause of scurvy?
  2. Name two non-communicable diseases.
  3. What is the first aid treatment for burns?

7. Ecology and Environment

• Important Topics:
  • Food chain and food web
  • Conservation of biodiversity
  • Pollution and its effects
• Sample Questions:
  1. What is the role of producers in an ecosystem?
  2. Define biodiversity.
  3. Name a method to reduce air pollution.

Tips for Preparation:

1. NCERT Books: Study from NCERT books (6th-10th grade) for a strong foundation in biology.
2. Previous Year Papers: Solve past TNUSRB question papers to understand the exam pattern.
3. Mock Tests: Attempt mock tests to improve speed and accuracy.
4. Current Affairs in Science: Stay updated with recent developments, such as discoveries in medicine or environmental issues.

If you’d like detailed notes or specific practice questions for any topic, let me know!