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
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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
- Also Read – Zoology Objective Questions and Answers
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
- Also Read – Quiz on Zoology for SSC, Banking and Medical Exams
- Also Read – Online Quiz on Botany for SSC, Banking and Medical Exams
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?
- Thyroxine
- Testosterone
- Insulin
- Adrenaline
75. The major chemical compound found in kidney stones is:
- Urea
- Calcium carbonate
- Calcium oxalate
- Calcium Sulphate
76. Which of the following elements are present in all proteins?
- Carbon
- Hydrogen
- Oxygen
- Nitrogen
- All of these
77. In the eye donation which part of the eye is transplanted from the donor?
- Cornea
- Lens
- Retina
- The whole eye
78. Production of which of the following is the function of the liver-
- Lipase
- Urea
- Mucus
- HCL
79. What is the pH value of the blood of a normal person?
- 4.5-4.6
- 6.45-6.55
- 7.35-7.45
- 8.25-8.35
80. Among the following which one is not an ape?
- Gibbon
- Gorilla
- Langur
- Orangutan
81. How do most insects respire?
- Through skin
- Through gills
- By Lungs
- By tracheal system
82. Which of the following is not a digestive enzyme in the human system?
- Trypsin
- Gastrin
- Ptyalin
- Pepsin
83. The release of which one of the following into ponds and wells helps in controlling the mosquitoes?
- Crab
- Dogfish
- Gambusia fish
- Snail
84. Which among the following is not a good source of nutritional calcium?
- Rice
- Ragi
- Skimmed Milk
- Egg
85. Which one of the following is a membrane that protects the developing embryo from desiccation?
- Amnion
- Chorion
- Allantois
- Yolk sac
86. The normal temperature of a human on the Kelvin scale is-
- 273
- 290
- 300
- 310
87. Fruits stored in a cold chamber exhibit longer storage life because-
- Exposure to sunlight is prevented
- The rate of respiration is decreased
- There is an increase in humidity
- The concentration of CO2 in the environment is increased
88. Which of these are microscopic, unicellular, and prokaryotic organisms-
- Monera
- Protista
- Fungi
- Plantae
89. The crocodiles belong to which class of animal kingdom?
- Ambhibia
- Reptilia
- Mammalia
- Aves
90. What is common in Amoeba, Ant, spider, and starfish?
- lay eggs to reproduce
- lack backbone
- have scales on their body
- None of these
91. Which one of the following is the major function of platelets?
- clotting of blood
- oxygen transport
- immmunity
- None of these
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