Zoology One Liner MCQs (1–20)

1. The study of animals is called?
   Answer: Zoology

2. Who is known as the father of Zoology?
   Answer: Aristotle

3. The largest mammal on Earth is?
   Answer: Blue Whale

4. Who discovered the cell?
   Answer: Robert Hooke

5. The basic unit of life is?
   Answer: Cell

6. The process of breathing in is called?
   Answer: Inhalation

7. Which organelle is known as the powerhouse of the cell?
   Answer: Mitochondria

8. The control center of the cell is?
   Answer: Nucleus

9. The human heart has how many chambers?
   Answer: Four

10. The pigment responsible for oxygen transport in blood is?
    Answer: Hemoglobin

11. The functional unit of the kidney is?
    Answer: Nephron

12. What is the study of birds called?
    Answer: Ornithology

13. The process of cell division is called?
    Answer: Mitosis

14. The study of heredity is called?
    Answer: Genetics

15. Vitamin D is synthesized in human skin by?
    Answer: Sunlight

16. The organ that stores bile is?
    Answer: Gall Bladder

17. The largest organ of the human body is?
    Answer: Skin

18. Which blood cells fight infections?
    Answer: White Blood Cells

19. The process by which plants make food is?
    Answer: Photosynthesis

20. The outermost layer of the skin is?
    Answer: Epidermis

Short Note:
These MCQs cover the basics of Zoology, including cell biology, physiology, and vital body systems. They are useful for beginners preparing for NTS, FPSC, or PPSC exams.

Zoology One Liner MCQs (21–40)

21. The human skeleton consists of how many bones?
    Answer: 206

22. The smallest bone in the human body is?
    Answer: Stapes

23. Red blood cells are produced in?
    Answer: Bone Marrow

24. Which animal is known as the ship of the desert?
    Answer: Camel

25. Which animal lays eggs but is a mammal?
    Answer: Platypus

26. The study of insects is called?
    Answer: Entomology

27. The brain of a human weighs about?
    Answer: 1.4 kg

28. The process of removing waste from the body is?
    Answer: Excretion

29. The normal temperature of the human body is?
    Answer: 37°C

30. Which organ purifies blood in humans?
    Answer: Kidneys

31. The largest artery in the human body is?
    Answer: Aorta

32. Which animal is known for changing its color?
    Answer: Chameleon

33. The longest bone in the human body is?
    Answer: Femur

34. Which blood group is known as the universal donor?
    Answer: O negative

35. The human brain is divided into how many parts?
    Answer: Three

36. Which organ secretes insulin?
    Answer: Pancreas

37. The main function of red blood cells is?
    Answer: Transport of oxygen

38. The sense of smell is controlled by which part of the brain?
    Answer: Olfactory bulb

39. Which organ helps in hearing?
    Answer: Ear

40. Which animal is known as the king of the jungle?
    Answer: Lion

Short Note:
This set includes human anatomy and physiology basics—bones, organs, and body functions—crucial for competitive exams in medical and life sciences.

Zoology One Liner MCQs (41–60)

41. The study of fishes is called?
    Answer: Ichthyology

42. The largest gland in the human body is?
    Answer: Liver

43. The smallest unit of heredity is?
    Answer: Gene

44. Which vitamin helps in blood clotting?
    Answer: Vitamin K

45. The main function of the lungs is?
    Answer: Respiration

46. The process of converting food into energy is called?
    Answer: Metabolism

47. The process of releasing energy from glucose is called?
    Answer: Respiration

48. The skeleton of a shark is made of?
    Answer: Cartilage

49. The main excretory organ in humans is?
    Answer: Kidney

50. The study of reptiles is known as?
    Answer: Herpetology

51. The human eye can differentiate how many colors?
    Answer: Around 10 million

52. Which muscle controls breathing?
    Answer: Diaphragm

53. The study of amphibians is called?
    Answer: Batrachology

54. Which organ helps in maintaining body balance?
    Answer: Ear

55. The main nitrogenous waste in humans is?
    Answer: Urea

56. Which part of the human brain controls voluntary actions?
    Answer: Cerebrum

57. What is the main component of nails?
    Answer: Keratin

58. The human ear has how many bones?
    Answer: Three

59. The process of removing nitrogenous waste is called?
    Answer: Excretion

60. Which system controls all body activities?
    Answer: Nervous System

Short Note:
These questions enhance understanding of human organ systems and sensory biology. Regular practice ensures clarity in theoretical and applied Zoology topics.

Zoology One Liner MCQs (61–80)

61. Which blood cells help in clotting?
    Answer: Platelets

62. The part of the brain responsible for balance is?
    Answer: Cerebellum

63. The outermost covering of the brain is?
    Answer: Meninges

64. The animal that never drinks water is?
    Answer: Kangaroo Rat

65. The study of fossils is called?
    Answer: Paleontology

66. The pigment that gives skin color is?
    Answer: Melanin

67. Which organ helps in digestion of fats?
    Answer: Liver

68. The study of the structure of animals is called?
    Answer: Anatomy

69. The sense of taste is detected by?
    Answer: Tongue

70. The blood vessels that carry blood away from the heart are?
    Answer: Arteries

71. The blood vessels that carry blood to the heart are?
    Answer: Veins

72. The study of behavior of animals is?
    Answer: Ethology

73. Which part of the body produces red blood cells?
    Answer: Bone Marrow

74. The total number of ribs in humans is?
    Answer: 24

75. The animal known for long neck is?
    Answer: Giraffe

76. The study of mammals is?
    Answer: Mammalogy

77. The study of cells is?
    Answer: Cytology

78. The main organ for respiration in fish is?
    Answer: Gills

79. Which is the heaviest land animal?
    Answer: Elephant

80. The organ that pumps blood is?
    Answer: Heart

Short Note:
These MCQs include advanced organismal biology and comparative anatomy, sharpening knowledge for medical entry and Zoology degree exams.

Zoology One Liner MCQs (81–100)

81. The smallest living bird is?
    Answer: Hummingbird

82. The study of parasites is?
    Answer: Parasitology

83. Which is the largest bird?
    Answer: Ostrich

84. The largest reptile is?
    Answer: Saltwater Crocodile

85. The human body has how many kidneys?
    Answer: Two

86. The process by which animals lose body heat is?
    Answer: Evaporation

87. Which organ helps in hearing and balance?
    Answer: Ear

88. The part of the brain that controls heartbeat is?
    Answer: Medulla Oblongata

89. The liquid part of blood is called?
    Answer: Plasma

90. The backbone protects?
    Answer: Spinal Cord

91. The study of bones is?
    Answer: Osteology

92. The largest animal ever known is?
    Answer: Blue Whale

93. The animal that can regenerate limbs is?
    Answer: Starfish

94. The study of human evolution is?
    Answer: Anthropology

95. Which organ helps in voice production?
    Answer: Larynx

96. The scientific name of humans is?
    Answer: Homo sapiens

97. The normal pulse rate of an adult is?
    Answer: 72 beats per minute

98. The animal known as the flying mammal is?
    Answer: Bat

99. The study of embryos is?
    Answer: Embryology

100. The animal with the longest lifespan is?
     Answer: Bowhead Whale

Short Note:
This section targets comparative zoology and evolution, ideal for advanced Zoology exams, CSS, PMS, and biology interviews.

Would you like me to continue with 101–200 MCQs next (formatted the same way with headings + notes)?

Zoology One Liner MCQs (101–200)

Zoology One Liner MCQs (101–120)

101. Which part of the brain controls balance and coordination?
Cerebellum

102. What type of blood cells help in clotting?
Platelets

103. The largest gland in the human body is?
Liver

104. What is the functional unit of the kidney?
Nephron

105. Which organ produces insulin?
Pancreas

106. The smallest bone in the human body is?
Stapes (in ear)

107. Which animal has three chambers in its heart?
Frog

108. What pigment gives skin its color?
Melanin

109. The process of cell division in body cells is called?
Mitosis

110. Which animal lays eggs but is a mammal?
Platypus

111. What is the scientific name of tiger?
Panthera tigris

112. What is the study of birds called?
Ornithology

113. Which blood group is a universal donor?
O negative

114. Which vitamin is produced in the skin by sunlight?
Vitamin D

115. What is the main function of red blood cells?
Transport of oxygen

116. What type of animal is a bat?
Mammal

117. What organ is responsible for filtering blood?
Kidney

118. What part of the body controls involuntary actions?
Medulla oblongata

119. What is the largest mammal?
Blue Whale

120. Which gas is exhaled during respiration?
Carbon dioxide

Zoology One Liner MCQs (121–140)

121. Which part of the brain controls intelligence and memory?
Cerebrum

122. Which protein is found in hair and nails?
Keratin

123. The process by which food is broken down is called?
Digestion

124. Which organ stores bile?
Gall bladder

125. What is the function of the heart?
Pumping blood

126. What type of blood do arteries carry?
Oxygenated blood

127. What is the study of insects called?
Entomology

128. What type of reproduction involves only one parent?
Asexual reproduction

129. What is the largest internal organ?
Liver

130. Which system controls body activities through hormones?
Endocrine system

131. What is the normal body temperature of humans in Celsius?
37°C

132. Which vitamin is known as Ascorbic acid?
Vitamin C

133. Which organ helps in detoxification?
Liver

134. What is the main function of white blood cells?
Fight infections

135. Which structure connects muscles to bones?
Tendons

136. Which part of the human body contains the smallest bone?
Ear

137. The smallest living unit of an organism is?
Cell

138. What is the main function of the lungs?
Exchange of gases

139. The process of conversion of glucose into energy is called?
Respiration

140. What is the main organ of the circulatory system?
Heart

Zoology One Liner MCQs (141–160)

141. What is the hardest substance in the human body?
Tooth enamel

142. What is the name of the largest artery?
Aorta

143. Which animal has the longest lifespan?
Tortoise

144. What is the process of removing waste from the body called?
Excretion

145. Which organ helps maintain body temperature?
Skin

146. Which vitamin is known as the sunshine vitamin?
Vitamin D

147. What part of the eye controls light entry?
Pupil

148. What is the function of hemoglobin?
Carry oxygen

149. Which system provides support and shape to the body?
Skeletal system

150. Which animal is known as the ship of the desert?
Camel

151. Which organ produces digestive enzymes?
Pancreas

152. What organ helps birds to breathe at high altitudes?
Air sacs

153. What is the study of fish called?
Ichthyology

154. Which vitamin helps in blood clotting?
Vitamin K

155. What is the scientific name of housefly?
Musca domestica

156. What type of blood group is universal recipient?
AB positive

157. Which part of brain controls respiration and heartbeat?
Medulla oblongata

158. Which mammal can fly?
Bat

159. What is the largest land animal?
Elephant

160. Which animal gives birth to the largest baby?
Blue whale

Zoology One Liner MCQs (161–180)

161. What part of the body controls reflex actions?
Spinal cord

162. What is the outer covering of the cell called?
Cell membrane

163. Which blood vessel carries blood to the heart?
Vein

164. What organ helps in excretion of urea?
Kidney

165. What is the pigment found in red blood cells?
Hemoglobin

166. Which vitamin prevents night blindness?
Vitamin A

167. What is the scientific name of man?
Homo sapiens

168. Which animal uses echolocation?
Bat

169. What is the study of fossils called?
Paleontology

170. Which animal has no brain?
Starfish

171. What is the process of breathing in and out called?
Respiration

172. What type of cells carry messages in the body?
Nerve cells

173. What is the powerhouse of the cell?
Mitochondria

174. Which gland secretes growth hormone?
Pituitary gland

175. What is the normal pH of human blood?
7.4

176. Which blood cells destroy bacteria?
White blood cells

177. What is the function of ribosomes?
Protein synthesis

178. Which part of brain regulates hunger and thirst?
Hypothalamus

179. Which blood vessel carries blood away from the heart?
Artery

180. What is the study of mammals called?
Mammalogy

Zoology One Liner MCQs (181–200)

181. Which organ helps in the sense of balance?
Ear

182. Which is the largest cell in the human body?
Ovum (egg cell)

183. What is the smallest cell in the human body?
Sperm cell

184. What is the function of lymph?
Transport of fats and immunity

185. Which animal is known for changing color?
Chameleon

186. What is the study of reptiles called?
Herpetology

187. What is the organ of voice in humans?
Larynx

188. Which organ is responsible for hearing?
Ear

189. What is the main component of bones?
Calcium

190. What is the function of bile?
Digestion of fats

191. What is the structural and functional unit of life?
Cell

192. Which part of human body has the thickest skin?
Soles of feet

193. Which animal has a pouch to carry its young?
Kangaroo

194. What is the process of removing carbon dioxide from body called?
Exhalation

195. Which animal sleeps standing up?
Horse

196. What is the study of human beings called?
Anthropology

197. Which part of cell controls its activities?
Nucleus

198. What is the scientific name of lion?
Panthera leo

199. What type of animal lays eggs in water?
Amphibians

200. Which system controls the sense organs?
Nervous system