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Life Science is a key subject in Kerala PSC exams and questions from this area appear at all levels, from 10th to Degree-based exams. To help aspirants, we’ve prepared expert-made Life Science notes in PDF format, available for free in this blog. These notes cover important topics, make concepts easy to understand, and are perfect for quick revision and exam preparation. Explore now!
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Kerala PSC Exam 2025 Highlights
| Category | Details |
|---|---|
| Exam Authority | Kerala Public Service Commission (KPSC) |
| Levels of Exam | 10th Level, 12th Level, Degree/Graduate Level |
| Eligibility | Depends on post – SSLC/Plus Two/Degree or equivalent qualification; Age limit varies by category with relaxations |
| Vacancies | Announced in official notifications; varies across departments and posts |
| Selection Process | Written Test (OMR/Online), Practical Test (if applicable), Physical Efficiency Test (for certain posts), Interview |
| Salary | As per notification |
| Official Website | www.keralapsc.gov.in |
Life Science Study Notes 2025 for Kerala PSC Exams
1: Who was the first woman President of India?
Explore our free Life Science notes for Kerala PSC exams, covering biology, ecology, human body, and plant science in a simple way. These notes are easy to read, well-organized, and perfect for all levels of PSC exams. Use them to strengthen your basics, revise quickly, and gain confidence before the test.
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Start Learning!Life Science Quiz 2025 for Kerala PSC Exams
1. What is the basic unit of life?
Answer: Cell
2. Which organ in the human body produces insulin?
Answer: Pancreas
3. Photosynthesis primarily takes place in which part of the plant?
Answer: Leaves (specifically in chloroplasts)
4. Hemoglobin is mainly responsible for:
Answer: Transporting oxygen in the blood
5. Which vitamin is produced in the skin on exposure to sunlight?
Answer: Vitamin D
6. What is the genetic material in most organisms?
Answer: DNA
7. The process of water movement from roots to leaves in plants is called:
Answer: Transpiration
8. Which blood cells help in fighting infections?
Answer: White blood cells (Leukocytes)
9. The study of the relationship between organisms and their environment is called:
Answer: Ecology
10. Which part of the human brain controls balance and coordination?
Answer: Cerebellum
11. Which hormone regulates the sleep-wake cycle in humans?
Answer: Melatonin
12. What is the main function of the xylem in plants?
Answer: Transport of water and minerals from roots to leaves
13. Which organelle is known as the “powerhouse of the cell”?
Answer: Mitochondria
14. What type of blood circulation is found in humans?
Answer: Double circulation
15. The process by which plants release oxygen during photosynthesis is called:
Answer: Photolysis
Life Science MCQs 2025 for Kerala PSC Exams
1. Which vitamin is essential for blood clotting?
A) Vitamin A
B) Vitamin D
C) Vitamin K
D) Vitamin C
Answer: C) Vitamin K
2. What is the primary function of ribosomes in a cell?
A) Energy production
B) Protein synthesis
C) Photosynthesis
D) DNA replication
Answer: B) Protein synthesis
3. Which organ filters blood and produces urine in humans?
A) Liver
B) Kidney
C) Pancreas
D) Spleen
Answer: B) Kidney
4. Which pigment gives red color to blood?
A) Myoglobin
B) Chlorophyll
C) Hemoglobin
D) Carotene
Answer: C) Hemoglobin
5. Which part of the brain regulates heart rate and breathing?
A) Cerebellum
B) Medulla oblongata
C) Hypothalamus
D) Cerebrum
Answer: B) Medulla oblongata
6. In plants, which hormone promotes stem elongation?
A) Auxin
B) Cytokinin
C) Ethylene
D) Abscisic acid
Answer: A) Auxin
7. Which type of reproduction produces genetically identical offspring?
A) Sexual reproduction
B) Asexual reproduction
C) Cross-pollination
D) Fertilization
Answer: B) Asexual reproduction
8. The study of fungi is called:
A) Botany
B) Mycology
C) Zoology
D) Microbiology
Answer: B) Mycology
9. Which blood component helps in clotting?
A) Plasma
B) Platelets
C) Red blood cells
D) White blood cells
Answer: B) Platelets
10. Which part of a plant transports food from leaves to other parts?
A) Xylem
B) Phloem
C) Cambium
D) Cortex
Answer: B) Phloem
11. Which gas is released during aerobic respiration?
A) Oxygen
B) Carbon dioxide
C) Nitrogen
D) Hydrogen
Answer: B) Carbon dioxide
12. What is the main function of the large intestine in humans?
A) Absorption of water and salts
B) Protein digestion
C) Blood filtration
D) Oxygen transport
Answer: A) Absorption of water and salts
13. Which vitamin is important for maintaining healthy eyesight?
A) Vitamin A
B) Vitamin B12
C) Vitamin C
D) Vitamin K
Answer: A) Vitamin A
14. What is the primary function of white blood cells?
A) Transport oxygen
B) Clot blood
C) Fight infections
D) Store nutrients
Answer: C) Fight infections
15. Which organ produces bile in humans?
A) Pancreas
B) Liver
C) Gallbladder
D) Kidney
Answer: B) Liver
16. Which plant tissue provides mechanical support and strength?
A) Parenchyma
B) Collenchyma
C) Sclerenchyma
D) Xylem
Answer: C) Sclerenchyma
17. What is the primary function of the stomata in leaves?
A) Absorb water
B) Exchange gases
C) Transport food
D) Store nutrients
Answer: B) Exchange gases
18. Which part of the neuron receives signals from other neurons?
A) Axon
B) Dendrites
C) Cell body
D) Myelin sheath
Answer: B) Dendrites
19. The human heart has how many chambers?
A) 2
B) 3
C) 4
D) 5
Answer: C) 4
20. Which macronutrient is the main source of energy for the body?
A) Proteins
B) Carbohydrates
C) Vitamins
D) Minerals
Answer: B) Carbohydrates
How to Prepare for Life Science with Study Notes PDF
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Go Topic by Topic
Start with one chapter or topic at a time. Read the notes carefully and focus on understanding concepts. -
Make Short Notes
Highlight key points or create your own quick reference notes for easy revision later. -
Use Diagrams & Charts
Life Science involves plants, human body, and ecology. Use the diagrams in the PDF to visualize processes and remember better. -
Practice MCQs & Quizzes
After each topic, solve the MCQs and quizzes in the notes to check your understanding. -
Revise Regularly
Revisit your notes frequently. Short, repeated revisions help retain facts, terms, and definitions. -
Combine with Previous Year Questions
Practice past Kerala PSC Life Science questions to get familiar with exam patterns and frequently asked topics. -
Focus on Weak Areas
Spend extra time on topics you find difficult, using the notes to clarify concepts.
