Biology GK Questions with Answers - Biology General Knowledge questions for Competitive Exams

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biology gk questions and answers

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These are important biology GK questions for all competitive exams. Here, I am providing very useful biology gk questions with answers for all the competitive exams. Practice with these selective Biology General Knowledge Questions for competitive exams.     

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These questions are useful for any competitive exam like IAS, bank PO, SSC CGL, RAS, CDS, UPSC exams and all state-related exams. For more practice, you can read also these latest biology questions and answers for the score high in your exams.

Biology Related General Knowledge Questions and Qnswers  

1. For which among the following is not a true fruit?  

A.  Apple
B.  Date
C.  Grape
D.  Plum


2. Which of the following is least infectious ?  

A. leprosy
B. hepatitis
C. tuberculosis
D. conjunctivitis

3. Which of the following is not a mosquito borne disease?   

A.  Dengue fever
B.  Malaria
C.  Sleeping sickness
D.  Filariasis 

4. In certain amino acids, which one of the following elements is found in addition to carbon , hydrogen, nitrogen and oxygen?  

A.  Phosphorus
B.  Zinc
C.  Calcium
D.  Sulphur 

5. Among the following elements, which one is essential for the transmission of impulses in the nerve fibre?   

A.  Calcium
B.  Iron
C.  Sodium
D.  Zinc

6. The vitamin which is very liable and easily destroyed during cooking as well as storage is  

A.  Vitamin A
B.  Vitaminb6
C.  Vitamin C
D.  Vitamin K

7. The compound used in anti-malarial drug is  

A.  Aspirin
B.  Neoprene
C.  Isoprene
D.  Chloroquin


8. Which of the following is a skin disease?  

A.  Anaemia
B.  Pellagra
C.  Osteomalacia
D.  Rickets

9. The richest source of vitamin D is  

A.  Cod liver oil
B.  Spinach
C.  Milk
D.  Cheese

10. Which of the following tests helps in diagnosis of cancer?  

A.  X-ray
B.  Urine test
C.  Blood test
D.  Biopsy test

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Biology related General Knowledge questions and answers

11. Which one of the following is an enzyme?  

A.  Glucagon
B.  Insulin
C.  Somatotropin
D.  Trypsin


12. Which vitamin is provided by sunlight to the body?  

A. Vitamin A
B. Vitamin B
C. Vitamin C
D. Vitamin D

13. The deficiency of which of the following leads to dental caries?  

A.  Iron
B.  Copper
C.  Fluorine
D.  Zinc

14. Healing of wounds is hastened by vitamin  

A.  A
B.  E
C.  C
D.  K

15. Which of the following diseases is caused by the bite of a mad dog?  

A.  Hydrocele
B.  Hydrophobia
C.  Hydrocephatus
D.  Hydroperitoneum

16. Which of the following vegetable proteins is considered as good as an animal protein?  

A.  Soyabean protein
B.  corn protein
C.  Wheat protein
D.  Bengal gram protein

17. Carotene in Indian cow’s milk causes  

A.  Creamish white colour
B.  yellow colour
C.  deep yellow colour
D.  no change


18. A woman who weighs 45 kg and whose work involves a lot of physical exertion needs  

A.  2800 calories per day
B.  3000 calories per day
C.  25000 calories per day
D.  3700 calories per day

19. Foot and mouth disease is found in  

A.  Cats and dogs
B.  Cattle
C.  Poultry
D.  Humans

20. Which one of the following is a primate?  

A.  Bear
B.  Otter
C.  Loris
D.  Pangolin

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Biology related General Knowledge questions and answers

21. To which one of the following types of organisms do mushrooms belong?  

A.  Algae
B.  Ferns
C.  Fungi
D.  Lichens


22. Food wrapped in newspaper is likely to get contaminated with  

A.  Lead
B.  Aluminium
C.  Iron
D.  Magnesium

23. Which one of the following produces seeds but no flowers?  

A.  Cashew nut
B.  Coffee
C.  Ground nut
D.  Pine

24. Which one of the following palnts is used for green manuring in India?  

A.  Wheat
B.  Sunhemp
C.  Cotton
D.  Rice

25. The combination of foods providing protein quality nearest to that of meat is  

A.  Wheat, dal and groundnuts
B.  Bread and butter
C.  Sprouted gram and groundnuts
D.  Groundnuts and jiggery

26. Which one of the following disease is Inheritable?  

A.  Leukaemia
B.  Colour blindness
C.  Malignancy
D.  Hepatitis

27. Which one of the following elements are present in all proteins? 1. Carbon 2. Hydrogen 3. Oxygen 4. Nitrogen  

A.  2 and 3
B.  1,2 and 4
C.  1,3 and 4
D.  1,2,3 and 4


28. For which one among the following diseases no vaccine is yet available?  

A.  Tetanus
B.  Malaria
C.  Measles
D.  Mumps

29. Which of the following vitamins is synthesised in the body by intenstinal bacteria?  

A.  vitamin B1
B.  vitamin B4
C.  vitamin D
D.  vitaminsK

30. BCG vaccination (Bacillus Calmette Guerine) is injected to get immunity from  

A.  Polio
B.  Cholera
C.  Small pox
D.  Tuberculosis

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Biology related General Knowledge questions and answers

31. In which one of the following, antibody formations takes place?  

A.  RBC’s
B.  Blood platelets
C.  Blood Plasma
D.  Donnan’s membrane


32. From the evolutionary point of view, which one of the following is closer to man?  

A. Dolphin
B. Flying fish
C. shark
D. tortoise

33. How do most insects respire?  

A.  through skin
B.  through gills
C.  by lungs
D.  by trachea system

34. Which one of the following part of human brain is the regulating centre for swallowing and vomiting?  

A.  Cerebellum
B.  cerebrum
C.  medulla oblongata
D.  pons

35. Production of which one of the following is a function of the liver?  

A.  Lipase
B.  Urea
C.  Mucus
D.  Hydrochloric acid

36. During sleep a man’s blood pressure  

A.  Increases
B.  decreases
C.  remains constant
D.  fluctuates

37. Oncogene is responsible for  

A. Aids
B. typhoid
C. malaria
D. cancer


38. Which acid is produced when milk gets sour?  

A.  Acetic acid
B.  Tartaric acid
C.  Lactic acid
D.  Butyric acid

39. Two richest kown sources of edible protein are  

A.  Meat and eggs
B.  Milk and vegetables
C.  Soyabean and groundnut
D.  Some algae and other micro-organisms

40. Which nutrients are most likely to be affected by food processing and storage?  

A.  Carbohydrates
B.  Fats
C.  Proteins
D.  Vitamins

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This questions are useful for any competitive exam like IAS, bank PO, SSC CGL, RAS, CDS, UPSC exams and all state related exams.

Biology related General Knowledge questions and answers

41. Which one of the following parts of the pitcher plant becomes modified into a pitcher?  

A.  Stem
B.  leaf
C.  stipule
D.  petiole


42. In which one of the following animals is respiration done by skin?  

A.  Flying fish
B.  Sea horse
C.  Frog
D.  Chameleon

43. Which one of the following bacteria helps in improving the soil fertility?  

A.  Clostridium
B.  Rhizobium
C.  Salmonella
D.  Staphylococcus

44. Which chamber of human heart pumps fully oxygenated blood to aorta and hence to the body?  

A.  Right Auricle
B.  Left Auricle
C.  Right Ventricle
D.  Left Ventricle

45. Which one of the following is a vitamin?  

A.  Citric acid
B.  Folic acid
C.  Glutamic acid
D.  Linoleic acid

46. Which one of the following is responsible for converting milk into curd?  

A.  Fungi
B.  Bacteria
C.  Virus
D.  None of these

47. In which one of the following animals is skin a respiratory organ?  

A. Cockroach
B. Frog
C. shark
D. Whale


48. A typical human ribcage consists of how many ribs?  

A.  12
B.  14
C.  16
D.  24

49. What is the pH level of blood of a normal person?  

A.  4.0 – 4.5
B.  6.45 – 65.5
C.  7.35 – 7.45
D.  8.25 – 8.35

50. Which of the following disease is not a caused by viruses?  

A.  Cholera
B.  Chickenpox
C.  Hepatitis
D.  Measles


Ans .   A

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