“The Knowledge Library”

Knowledge for All, without Barriers…

An Initiative by: Kausik Chakraborty.

“The Knowledge Library”

Knowledge for All, without Barriers……….
An Initiative by: Kausik Chakraborty.

The Knowledge Library

Natural Science: Questions & Answers

1. BCG Vaccine is used to prevent: 
Answer: Tuberculosis 
2. Which is known as ‘growth gland’: 
Answer: Pituitary 
3. The first effective vaccine against polio was discovered by: 
Answer: Jonas E Salk 
4. Which gland is situated very near to kidney: 
Answer: Adrenal 
5. Suprarenal gland is another name of : 
Answer: Adrenal 
6. Where is lateral ventricles can be seen in human body:
Answer: Brain 
7. Substance produced in human body while suffering from allergy of pollens: 
Answer: Histamin 
8. Which is the basic structural and functional unit of nervous system: 
Answer: Neuron 
9. The most abundant blood group: 
Answer: O+ 
10. The rarest blood group: 
Answer: AB negative 
11. Hysterectomy is the removal of: 
Answer: Womb 
12. Which vitamin is also known as Cobalamin: 
Answer: B12 
13. Length of human elementary canal is ……… feet: 
Answer: 30 
14. Which hormone is produced when a man is frightened:
Answer: Adrenalin 
15. Ophthalmoscope is a device to examine the inner parts of: 
Answer: Eye 
16. Biopsy test is used to determine: 
Answer: Cancer
17. The image formed on the retina of human eye is: 
Answer: Real and inverted 
18. Dermatologist is specialised in the treatment of: 
Answer: Skin 
19. Which pigment imparts yellow colour to urine: 
Answer: Urochrome 
20. Vitamin helpful for the healing of wounds: 
Answer: Vitamin C 
21. Ciliary Muscles are related to: 
Answer: Eyes 
22. Myology is the study of: 
Answer: Muscles 
23. Amount of water in bone is …….. percent:
Answer: 25 
24. Human muscles contain …… percent of water: 
25. The theory ‘Survival of the fittest’ in biology is given by:
Answer: Charles Darwin 
26. Average weight of human heart is: 
Answer: 300 gm 
27. Which internal organ in human has the capacity for rejuvanation: 
Answer: Liver  
28. Which part of the brain is known as ‘Mini Brain’: 
Answer: Cerebellum 
29. Which is known as ‘Juvenile gland’: 
Answer: Thymus 
30. Which is known as ‘Sweet gland’: 
Answer: Pancreas 
31. Vitamin in the form of hormone: 
Answer: Vitamin D 
32. Which is most important for the growth of children upto the age of 14:
Answer: Protein 
33. The thermoregulatory body of human body: 
Answer: Hypothalamus
34. The total number of ear bones including both ears: 
Answer: 6
35. Normal human body temperature is ……. degree Fahrenheit: 
Answer: 98.4 
36. A man will breath …. times a day: 
Answer: 22000
37. Normal blood pressure of human body is: 
Answer: 120/80 mm of Hg 
38. Which is known as ‘messengers of body’: 
Answer: Hormone 
39. Cylindrical lens used to rectify: 
Answer: Astigmatism
40. What percent of the atmosphere should be oxygen to main: tain life on earth: 
Answer: 6.9
41. Excessive passion for alcoholic drinks: 
Answer: Dipsomania 
42. Which vitamin is spoiled when baking soda is.used in cooking: 
Answer: C. 
43. The larger part of the brain is: 
Answer: Cerebrum 
44. The largest nerve: 
Answer: Vagus nerve 
45. Cystectomy is the surgical removal of: 
Answer: Womb 
46. Parts of human body that grows throughout life are ….. and nạil: 
Answer: Hair 
47. The second largest gland in human body: 
Answer: Pancreas 
48. Sartorius is the longest …… in human body: 
Answer: Muscle 
49. The longest cell in human body: 
Answer: Nerve cell 
50. The largest muscle in human body: 
Answer: Gluteus maximus

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