Biology Objective Questions
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Read Also- Biological Classification of Organisms
1. Which of the following is not a mammal?
A. Whale
B. Fish
C. Bat
D. None of these
2. The largest living Mammalia is? A. Giraffe B. Blue Whale C. Camel D. Human Beings 3. Which of the following has the smallest living cell? A. Bacterium B. Mycoplasma C. Virus D. Bread mold
4. How many bones are found in the human skull? A. 8 B. 16 C. 18 D. 19 Also Read these- 5. The dinosaurs were – A. Mesozoic Aves B. Mesozoic Reptiles C. Cenozoic Reptile D. Paleozoic Amphibian 6. Turpentine is obtained from – A. Pine B. Crude Petroleum C. Deodar D. Oak 7. Which of the following enzymes is found in the saliva? A. Renin B. Tenin C. Tylene D. Resin 8. Which of the following is not a digestive enzyme? A. Pepsin B. Renin C. Amelepsin D. Insulin
9. The longest bone of the human body is – A. Fibula B. Stapes C. Femur D. Tibia For more Biology Objective Questions 10. The bones of the leg in the human body are – A. Humerus B. Solid C. Hollow D. None of these 11. The teeth which develop 2 times in the life cycle of human beings are – A. 4 B. 12 C. 15 D. 20 12. The tissue that plays a significant role in the growth of almost all bones – A. Areolar Tissue B. Cartilage C. Fibroblastic Tissue D. Spongy Bone 13. The bile is accumulated in – A. Liver B. Spleen C. Bile Duct D. Receptor
14. The bile is produced through – A. Liver B. Stomach C. Small Intestine D. Large Intestine 15. The function of a pacemaker is – A. to regulate the urine formation B. to regulate digestion C. to start respiration D. to start heartbeat 16. Which one of the following nutrients is a structural component of the cell wall of plants? A. Mn B. K C. Ca D. P 17. The Cell Sap is – A. a dilute solution of minerals and some organic substances in the vacuole B. a dilute solution of minerals in water absorbed by the plant from the soil C. a solution of different organic substances dissolved in the cytoplasm D. exudate from the cell 18. The widely used antibiotic penicillin is produced by – A. An Algae B. A bacterium C. A fungus D. None of these
19. Which of the following is not a micronutrient for a plant? A. Mg B. Mn C. Fe D. Mo 20. Which of the following is the product of the dark reaction of photosynthesis? A. ATP B. Sugar C. NADH2 D. NADPH2 Also Read- Amazing Facts of Human Body 21. Which of the following sugars are the components of sugarcane? A. Glucose and Mannose B. Glucose and Galactose C. Glucose and Fructose D. Glucose and Ribose 22. Grey matter consists of – A. a large number of neurons B. Neuroglia C. a large number of nerve cell bodies D. a large number of nerve fibers 23. The color of cow’s milk is slightly yellowish due to the presence of – A. Riboflavin B. Ribulose C. Carotin D. Xanthophyll
24. In termites, the cellulose of wood is digested by – A. Bacteria B. Protozoans C. Bacteria and Protozoans D. Cellulose breaking enzyme ß amylase 25. A solution of chlorophyll pigments looks red in the reflected light because of – A. Reflection B. Fluorescence C. Refraction D. None 26. The center of cellular and molecular biology is located at – A. New Delhi B. Chennai C. Hyderabad D. Lucknow 27. The center for DNA fingerprint and diagnostic is located at – A. Bangalore B. Hyderabad C. Chennai D. New Delhi 28. The theory of mutation was propounded by – A. Malthus B. Lamarck C. Hugo de Vries D. Hassle
29. The DNA was firstly synthesized by – A. Kelvin B. Miller C. Hargobind Khurrana D. Hugo de Vries 30. The word gene was firstly used by – A. Johnson B. Watson C. Walder D. Crick 31. Which among the following is not a true fruit? A. Grape B. Date C. Apple D. Plum 32. Which of the following has maximum protein? A. Soybean B. Pea C. Gram D. Pigeon Pea 33. The thickest human skin is of – A. Palm B. Sole C. Head D. Neck
34. The father of modern antiseptic surgery is – A. Joseph Lister B. William Harbor C. Albert Jenner D. Louis Pasteur 35. Who gave the double-helix model of DNA? A. Watson and Crick B. Dalton C. Shalk D. Leeuwenhoek 36. Which of the following occurs in Haemophilia? A. Hemolysis B. RBC Sticks C. WBC becomes cellular trophic D. blood doesn’t clot 37. Which one of the following is a major source of sugar? A. Sugarcane B. Beetroot C. Date D. Watermelon 38. The study of Dendrology is associated with – A. Plants B. Shrubs C. Trees D. Flowers 39. The study of Annual rings is known as – A. Horticulture B. Agronomy C. Dendrology D. Dendrochronology 40. The study of flowers is called – A. Horticulture B. Phenology C. Anthology D. Poloinology 41. The study of fruits is called – A. Spermology B. Pedology C. Pomology D. Anthology 42. Hydrophobia is caused by – A. Bacteria B. Fungi C. Protozoa D. Virus 43. The environment is a composite state of – A. Biotic factors B. Abiotic factors C. Physiographic factors D. All the above
44. Food poisoning is caused by – A. Salmonella Toyphosis B. Basils Anthresis C. Clostridium botulinum D. Clostrdeam atiteni 45. The disease of foot and mouth in the animals are caused by – A. Bacteria B. Virus C. Fungi D. Protozoa 46. Which of these is the smallest bone in a human body? A. Staps B. Femur C. Nail D. Bone of Jaw 47. The branch of botany under which fungi are studied is called – A. Microbiology B. Mycology C. Phycology D. Embryology 48. Which one of the following organs breaks fats to produce cholesterol? A. Liver B. Kidneys C. Intestine D. Lungs
49. The lichen is an indicator of – A. Air Pollution B. Water Pollution C. Soil Pollution D. Radiation Pollution 50. The cell wall of Algae is made up of – A. Cellulose B. Chitin C. Suberin D. Cutin 51. Water percentage in plasma is – A. 90 B. 60 C. 75 D. 80 52. What is a fever? A. Pain B. Inflammation of Skin C. Inflammation of blood cells D. Inflammation of blood platelets 53. The hormone insulin is a – A. Glycolipid B. Fatty Acid C. Peptide D. Sterile
54. The ginger is a – A. Bulb B. Rhizome C. Tuber D. Modified Root 55. The anti-malaria drug Quinine is made from which plant? A. Neem B. Cinchona C. Cinnamon D. Eucalyptus 56. The most stable ecosystem is – A. Forest B. Steppe C. Sea D. Desert 57. From where oxygen is made available for photosynthesis to plants? A. Air B. Water C. Soil D. Sunlight 58. Which one of the following produces seeds but not flowers? A. Pine B. Cashew Nuts C. Coffee D. Groundnut
59. The word Histology was firstly used by – A. Shelden B. Robert Hooke C. Mayer D. T. H. Maman 60. Which of the following vitamins are used as a hormone? A. Vitamin A B. Vitamin B C. Vitamin C D. Vitamin D 61. Which of the following plant organ is most vital from its life cycle point of view? A. Root B. Stem C. Leaf D. Flower 62. Sandalwood tree is considered a – A. total root parasite B. stem parasite C. total stem parasite D. None of these 63. Which component of the plant receives stimulus for flowering? A. Roots B. Stems C. Leaves D. Branches
64. Genetics deals with – A. Heredity and Variations B. Organic Evolution C. Mendel’s Laws D. DNA Structure 65. An embryo is found in? A. Buds B. Seeds C. Leaves D. Flowers 66. In an emergency blood type B can donate blood to a person with blood type? A. A or B B. AB or A C. A or O D. AB or B 67. The edible part of a potato is – A. Root B. Stem C. Fruit D. Bud 68. The edible part of cauliflower is? A. Fruit B. Bud C. Thalamus D. Flower
69. The metallic ion found in the chlorophyll (chloroplast) is? A. Magnesium B. Cobalt C. Iron D. Zinc 70. Where does the evaporation process occur? A. Root B. Stem C. Leaf D. The entire body of the plant 71. Which of the following is a man-made paddy? A. Tritkel B. Tritium Bulgear C. Zia mez D. Hordeum Bulgear 72. The plants which grow on saline soils are called? A. Halophytes B. Succulents C. Hydrophytes D. Xerophytes 73. The opium is extracted from which part of the plant? A. Root B. Stem C. Leaf D. Flower
74. Which of the following hormones contains Iodine? 75. The major chemical compound found in kidney stones is: 76. Which of the following elements are present in all proteins? 77. In the eye donation which part of the eye is transplanted from the donor? 78. Production of which of the following is the function of the liver-
79. What is the pH value of the blood of a normal person? 80. Among the following which one is not an ape? 81. How do most insects respire? 82. Which of the following is not a digestive enzyme in the human system? 83. The release of which one of the following into ponds and wells helps in controlling the mosquitoes?
84. Which among the following is not a good source of nutritional calcium? 85. Which one of the following is a membrane that protects the developing embryo from desiccation? 86. The normal temperature of a human on the Kelvin scale is- 87. Fruits stored in a cold chamber exhibit longer storage life because- 88. Which of these are microscopic, unicellular, and prokaryotic organisms- 89. The crocodiles belong to which class of animal kingdom? 90. What is common in Amoeba, Ant, spider, and starfish? 91. Which one of the following is the major function of platelets? We will soon upload more questions → Our target is to upload at least 500 biology objective questions and upto 1000 biology objective questions. So, keep visitng.
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