Type- MCQs / FAQs
Start where you are. Use what you have. Do what you can. - आर्थर ऐश
100 MOST REPEATED BIOLOGY QUESTIONS
1. Which cells are known as 'Soldiers of Human Body'?
Ans. White Blood Cells [Red Blood Cells - Erythrocytes]
2. The study of Plants, pollens, algae, organisms is called?
Ans. Palynology [Study of Trees - Dendrology]
3. Which acid is found in the Apples and Pears?
Ans. Malic Acid [Oxalic Acid - Tomato, Tartaric Acid - Grapes]
4. Bariatric surgery brings changes in a person's __?
Ans. Digestive System
5. Which Vitamin Deficiency causes the disease 'Rickets'
Ans. Vitamin D [Vit C - Scurvey, Vit B - Bery Bery]
6. What is 'Marble Cancer' with respect to Marbles?
Ans. Corrosion of Marble due to acid rain
7. Which gas reduces Oxygen carrying capacity of Blood?
Ans. Carbon Monoxide
8. Pollination by the Bird is called?
Ans. Ornithophily [Pollination by Insects - Entomophily]
9. Who won the Nobel Prize in 1906 for 'Neuron Doctrine'?
Ans. Camillo Golgi and Santiago Ramon y Cazal
10. Which Vitamin Deficiency causes 'Night Blindness'?
Ans. Vitamin A [Clotting of Blood - Vitamin K]
11. What is the popular name of 'Ascorbic Acid'?
Ans. Vitamin C
[Vit A - Retinol]
12. Which is the 'Vestigial Organ' of our Human Body?
Ans. Appendix [Another Vestigial Organ -Coccyx]
13. Which plant is a 'Carnivorous Plant'?
Ans. Venus Flytrap
14. How many 'Canine Teeth' does a Human adult has?
Ans. 4 Canine [8 Premolars, 8 Molars]
15. Which Scientist discovered the 'Penicillin'?
Ans. Alexander Fleming [Pasteurization - Louis Pasteur]
16. Which of the creature is 'Oviparous'?
Ans. Frog [Oviparous - One who lays eggs outside body]
17. Which acid is present in the 'Ant Sting'?
Ans. Formic Acid
18. Which is the smallest bird in the world?
Ans. Bee Humming Bird [Largest - Ostrich Bird]
19. Who discovered the 1st Vaccine for 'Smallpox'?
Ans. Edward Jenner
20. Fertilization in female flowers takes place in?
Ans. Ovary
21. The Theory 'Survival of the Fittest' is given by?
Ans. Charles Darwin
22. DNA is stored majorly in which part of the cell?
Ans. Nucleus
23. Which tissue transports food to various parts of plant?
Ans. Phloem [Food - Phloem, Water - Xylem]
24. Which tissue transports water to diff parts of plants?
Ans. Xylem
25. The enzyme "Lipase" is produced by which organ?
Ans. Pancreas
26. The National Institute of Nutrition is located in?
Ans. Hyderabad
27. Where is "Rhodopsin" located in the human body?
Ans. Retina or Human Eye [Rhodopsin - Visual Purple]
28. The term "Mitochondria" was firstly coined by?
Ans. Albert von Kolliker [MTC - Powerhouse of the Cell]
29. The disease "Goiter" is caused by the deficiency of?
Ans. Iodine [Iron - Anaemia, Protein - Kwashiorkor]
30. "Somatotropin" is another name for?
Ans. Growth Horomone
31. Which is the largest bone of the Human body?
Ans. Femur Bone [Smallest Bone - Stapes (Ear)]
32. The "BCG Vaccine" is to prevent which disease?
Ans. Tuberculosis [IPV Vaccine - Polio]
33. Which body part gets affected by Illness osteoporosis?
Ans. Bones [Bones gets very weak in disease]
34. Which is the stem-like part of leaf that joins to stem?
Ans. Petiole
35. Which pigment gives color to Human skin?
Ans. Melanin [Color to Hair - Melanin]
36. Which is thin layer of cells living inside bark of tree?
Ans. Cambium
37. Tears in the eyes are produced by which of glands?
Ans. Lacrimal Gland
38. 'Hypokalemia' is caused by the deficiency of ?
Ans. Potassium
39. Which hormone is helpful in coping with stress?
Ans. Serotonin
40. Who discovered the 'circulation of blood'?
Ans. William Harvey [Blood Group by - Karl Landsteiner]
41. The Right Pulmonary Artery is ?
Ans. Wider than the left
42. 'Canis Lupus' is commonly known as?
Ans. Gray Wolf
43. Which creature uses Ultrasonic sound to catch prey?
Ans. Bats
44. Who is known as the Father of Indian Ornithology?
Ans. Allan Octavian Hume
45. Which is known as 'Suicidal Bags of the Cell"?
Ans. Lysosomes
46. Which Enzymes act as Catalysts within living cells?
Ans. Proteins
47. In Humans, Fertilization usually takes place in?
Ans. Fallopian Tube
48. Which is the universal recipient blood group?
Ans. AB+ [Universal Donor - Blood Group O-]
49. Which system controls every activity a body performs
Ans. Nervous System
50. The 'Hypothalamus' is a part of which organ?
Ans. Brain
51. "Passer Domesticus" is commonly known as?
Ans. Sparrow
52. Olfactory Receptors are located in our?
Ans. Nose
53. The study of Viruses is known as?
Ans. Virology [Study of Fungi - Mycology]
54. The concept of "Five Kingdom Classification" is by?
Ans. Robert Whittaker
55. Which gland controls functioning of endocrine glands
Ans. Pituitary Gland [Controls Other Endocrine Glands]
56. Which is an Exocrine and both Endocrine Gland?
Ans. Pancreas
57. Which is the
Largest Gland of Human Body?
Ans. Liver [Smallest Gland - Pituitary Gland]
58. Which Gland is responsible for "Fear/Excitement"?
Ans. Adrenal Gland [Horomone - Adrenaline]
59. Which has the highest protein content per gram?
Ans. Soyabean
60. Which branch of Zoology also studies Amphibians?
Ans. Herpetology
61. 'Xerophthalmia' disease is caused by deficiency of?
Ans. Vitamin A
62. Which is the 2nd stage of development of Butterfly?
Ans. Larvae [Egg -> Larvae -> Pupa -> Adult]
63. Maximum Oxygen is available from which part?
Ans. Phytoplanktons [Kind of Algae]
64. What is the approx. number of Skeletal Muscles?
Ans. 640 or 320 pairs (in Human Body)
65. 'Minamata' disease is caused by pollution of water in?
Ans. Mercury
66. Amino Acids are required for the synthesis of?
Ans. Proteins [Protein Deficiency - Kwashiorkor]
67. 'Christmas Factor' is involved in which system?
Ans. Blood Coagulation
68. 1st Human Heart Transplant was performed by?
Ans. Christiaan Barnaad (3rd December 1967)
69. In BCG Vaccine of Tuberculosis, B stands for?
Ans. Bacillus Calmette- Guerin (BCG) Vaccine
70. Which acid is related to Muscle Fatigue?
Ans. Lactic Acid
71. The gene which exhibit multiple effects is known as?
Ans. Pleiotropy
72. Which is the sweetest sugar?
Ans. Fructose or Fruit Sugar
73. Outside the nucleus, DNA is found in which part?
Ans. Mitochondria
74. The color of carrots is due to the presence of?
Ans. Carotene
75. 'sense of balance' is achieved by which part of brain?
Ans. Cerebellum
76. Which part of plants are known as 'Lungs of Plants'?
Ans. Leaves [Leaves play important role]
77. For instant energy in cells, what one should prefer?
Ans. Glucose
78. The harmful substance produced by microbes is?
Ans. Toxins
79. Myrmecology is the study of?
Ans. Ants
80. Typhoid Fever is caused by?
Ans. Bacterial Infection (Salmonella - Bacteria Name)
81. 'Survival of the Fittest' term was firstly used by?
Ans. Herbert Spencer
82. What are Enzymes?
Ans. Proteins
83. Which Oilseed is not edible?
Ans. Cottonseed
84. What is the number of mitochondria in Bacteria cells?
Ans. 0 (Zero)
85. Glucose is a type of?
Ans. Hexose Sugar
86. From which part of Opium do we get Morphine?
Ans. Fruit Coat
87. Medicine of Quinine is provided by?
Ans. Cinchona Plant
88. Transpiration through leaves is called as?
Ans. Foliar Transpiration
89. Which substance is lost by the body during dehydration?
Ans. Sodium Chloride
90. Which blood component carries Oxygen?
Ans. Red Blood Cells
91. What is 'Halitosis' commonly known as?
Ans. Bad Breath
92. Which disease is caused by the deficiency of Vit B3?
Ans. Pellagra
93. Which is the hardest substance in Human Body?
Ans. Tooth Enamel
94. What determines the sex of a child?
Ans. Male Chromosomes
95. 'Pneumonia' is caused by the inflammation of?
Ans. Lungs
96. Which scientist formed 'The Theory of Evolution'?
Ans. Charles Darwin
97. Which is the largest internal organ of human body?
Ans. Liver (Liver - Largest Gland)
98. Vitamin C is maximum present in?
Ans. Citrus Fruits
99. The study of different types of tissues is called?
Ans. Histology
100. Which is used in Acupuncture Treatment?
Ans. Needles
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