In this post, Structural Organisation In Animals NEET Questions and Answers, we are going to discuss some most important multiple choice questions on NCERT Class-11 Biology Chapter-7, Structural Organisation In Animals. These MCQs on Structural Organisation In Animals are most valuable for your upcoming NEET, AIIMS, JIPMER as well as Board exams.

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Structural Organisation In Animals NEET Questions and Answers

1. Which of the following tissues has the most regenerative power?

a) Epithelial tissue

b) Connective tissue

c) Muscular tissue

d) Neural tissue

Answer: a

2. Which of the following tissues is derived from all the three germinal layers?

a) Connective tissue

b) Epithelial tissue

c) Muscular tissue

d) Neural tissue

Answer: b

3. Which of the following functions is not performed by epithelial tissue?

a) Protection

b) Secretion

c) Absorption

d) Conduction

Answer: d

4. Which of the following statements is incorrect regarding epithelial tissue?

a) It does not have a free surface

b) Provides a covering for some part of the body

c) Cells are compactly packed

d) It is of two types

Answer: a

5. Which of the following is not a type of simple epithelial tissue?

a) Squamous epithelium

b) Cuboidal epithelium

c) Columnar epithelium

d) Compound epithelium

Answer: d

6. In which of the following places, the squamous epithelium is not found?

a) Wall of blood vessels

b) Air sacs of lungs

c) Trachea

d) Bowman’s capsule

Answer: c

7. In which of the following places, the cuboidal epithelium is not found?

a) Ducts of glands

b) Tubular parts of the nephron

c) Germinal epithelium of gonads

d) Vasa deferens

Answer: d

8. Which of the following functions is not performed by unicellular organisms?

a) Digestion

b) Respiration

c) Reproduction

d) Neural coordination

Answer: d

9. The human body is composed of how many cells?

a) Billions

b) Millions

c) Thousands

d) Quadrillion

Answer: a

10. What is meant by a tissue?

a) Group of cells of similar origin

b) Group of cells of dissimilar origin

c) Group of similar or dissimilar cells

d) Group of unrelated cells

Answer: c

11. The structure of the cell varies according to which of the following?

a) Shape

b) Size

c) Life

d) Function

Answer: d

13. Where is brush bordered cuboidal epithelium found?

a) DCT

b) PCT

c) Collecting duct

d) Collecting tubule

Answer: b

14. What are cuboidal or columnar cells called when they bear cilia?

a) Ciliated epithelium

b) Flagellated epithelium

c) Convoluted epithelium

d) Brush bordered epithelium

Answer: a

15. The classification of glands is based on which of the following?

a) Mode of differentiation

b) Mode of pouring of secretions

c) Mode of cellular division

d) Number of cells

Answer: b

16. Which of the following is not a secretion of exocrine glands?

a) Mucus

b) Saliva

c) Hormones

d) Ear wax

Answer: c

17. Which of the following is an incorrect statement regarding compound epithelium?

a) The main function is secretion and absorption

b) Cover dry surface of the skin

c) Made of more than one layer of cells

d) Cover moist surface of the buccal cavity

Answer: a

18. Which of the following junctions help to stop substances from leaking against a tissue?

a) Adhering junctions

b) Gap junctions

c) Tight junctions

d) Loose junctions

Answer: c

19. Which of the following is the most abundant and widely distributed tissue in the human body?

a) Muscular tissue

b) Connective tissue

c) Epithelial tissue

d) Neural tissue

Answer: b

20. Which of the following is not a type of connective tissue?

a) Loose

b) Dense

c) Specialised

d) Smooth

Answer: d

21. Which of the following is not a function of fibres of connective tissue?

a) Strength

b) Elasticity

c) Flexibility

d) Longevity

Answer: d

22. Which of the following represents the intercellular matrix of cartilage?

a) Solid and pliable

b) Hard and non-pliable

c) Solid and non-pliable

d) Hard and pliable

Answer: a

23. Which of the following represent the intercellular matrix of a bone?

a) Solid and pliable

b) Hard and non-pliable

c) Loose and non-pliable

d) Hard and pliable

Answer: b

24. Which of the following is the main circulating fluid of the body?

a) Blood

b) Lymph

c) Water

d) Sebum

Answer: a

25. What does muscle fibres consist of?

a) Fibriliocytes

b) Short fibrils

c) Fibroblasts

d) Myofibrils

Answer: d

26. Muscles are of how many types?

a) One

b) Two

c) Three

d) Four

Answer: c

27. Which of the following is not the correct location of a smooth muscle?

a) Stomach

b) Bones

c) Blood vessels

d) Intestine

Answer: b

28. Where are the cardiac muscles found?

a) Only in the heart

b) Around the heart

c) Outside the heart

d) Away from the heart

Answer: a

29. Which of the following cells make more than half the volume of neural tissue?

a) Microglial cells

b) Epithelial cells

c) Neuroglial cells

d) Macrophages

Answer: c

30. What type of tissue is present in the lining of ducts?

a) Connective

b) Neural

c) Muscular

d) Epithelial

Answer: d

31. Which of these is not a structural classification of simple epithelium?

a) Columnar

b) Cuboidal

c) Cubical

d) Squamous

Answer: c

32. Microvilli is present in the epithelium of _______

a) walls of blood vessels

b) air sacs of lungs

c) proximal convoluted tubule of nephron

d) skin surface

Answer: c

33. Which of the following do not contain ciliated epithelium?

a) Gastrointestinal tract

b) Bronchioles

c) Uterus

d) Fallopian tubes

Answer: a

35. What is the main function of compound epithelium?

a) Secretion

b) Protection

c) Absorption

d) Discharge

Answer: b

36. Which of the following cellular junctions create a cytoplasmic connection between adjoining cells?

a) Tight junctions

b) Adhering junctions

c) Gap junctions

d) Occluding junctions

Answer: c

37. Which of these is not true about areolar tissue?

a) Macrophages are absent

b) It is a support framework for epithelium

c) It contains mast cells

d) It contains fibroblasts

Answer: a

38. Which of these is not a secondary lymphoid organ?

a) Lymph nodes

b) Tonsils

c) Spleen

d) Thymus

Answer: d

39. In which of these structures is collagen fibers present in rows between parallel bundles of fibers?

a) Skin

b) Submucosa of digestive tract

c) Tendon

d) Tunica albuginea

Answer: c

40. Osteocytes are present in spaces called ______

a) lamellae

b) lacunae

c) lacrimal sacs

d) lacteals

Answer: b

41. Skeletal muscles are _______

a) not attached to bones

b) involuntary

c) non-striated

d) striated

Answer: d

42. Which of the following is true about neuroglial cells?

a) They act as neurons during stress

b) They conduct impulses to and from neurons

c) They protect and support neurons

d) They are only present in the brain

Answer: c

43. When a neuron is stimulated, the electrical signal travels along the _______

a) plasma membrane

b) cytoplasm

c) cytoskeleton

d) extracellular matrix

Answer: a

44. What does adipose tissue store?

a) Proteins

b) Fat

c) Glycogen

d) Water

Answer: b

45. Which of the following is a common Indian earthworm?

a) Pheretima

b) Periplaneta

c) Blatta

d) Hirudina

Answer: a

46. How can we trace earthworms?

a) Colour

b) Smell

c) Predator

d) Worm castings

Answer: d

47. How can we distinguish the ventral surface of the earthworm by their dorsal surface?

a) Presence of setae

b) Presence of hair

c) Presence of genital pores

d) Presence of oil glands

Answer: c

48. In how many regions, is the body of earthworm divisible?

a) One

b) Two

c) Three

d) Four

Answer: c

49. How many spermathecal apertures are present in an earthworm?

a) Two

b) Four

c) Six

d) Eight

Answer: d

50. In which of the following segments, setae are present?

a) First segment

b) Second segment

c) Clitellar segments

d) Last segment

Answer: b

51. The body wall of an earthworm is made up of how many muscle layers?

a) One

b) Three

c) Two

d) Five

Answer: c

52. What is the characteristic feature of the intestine of an earthworm?

a) Setae

b) Clitellum

c) Glans

d) Typhlosole

Answer: d

53. In which of the following segments are the blood glands of an earthworm present?

a) 2, 3 and 4

b) 3, 4 and 5

c) 4, 5 and 6

d) 5, 6 and 7

Answer: c

54. How many types of nephridia are present in the earthworm?

a) One

b) Two

c) Three

d) Four

Answer: c

55. Which of the following structures represent the nervous system of an earthworm?

a) Ganglia

b) Notochord

c) Vertebral column

d) Brain

Answer: a

56. What type of fertilization is exhibited by an earthworm?

a) Internal and cross-fertilization

b) External and cross-fertilization

c) Internal and self-fertilization

d) External and self-fertilization

Answer: b

57. What are earthworms commonly called as?

a) Friends of farmers

b) Souls of farmers

c) Enemies of farmers

d) Gods for the farmers

Answer: a

58. Which class do the cockroaches belong to?

a) Class Insecta

b) Class Chitoptera

c) Class Arachnida

d) Class Diplotera

Answer: a

59. Where do the cockroaches generally live?

a) In moist places

b) In dry places

c) In damp places

d) In bright spaces

Answer: c

60. In how many segments is the body of cockroach divided?

a) One

b) Two

c) Three

d) Four

Answer: c

61. Which of the following is not included in the mouthparts of the cockroaches?

a) Collateral glands

b) Maxilla

c) Mandible

d) Hypopharynx

Answer: a

62. Which of the following segments is not involved in the formation of a genital pouch in male cockroaches?

a) 7th sternum

b) 9th tergum

c) 10th tergum

d) 9th sternum

Answer: a

63. How many chitinous teeth are present in the gizzard of cockroaches?

a) Seven

b) Two

c) Eleven

d) Six

Answer: d

64. On which side of the body of cockroaches are the spiracles present?

a) Dorsal

b) Lateral

c) Ventral

d) Bottom

Answer: b

65. In what form do the cockroaches excrete out their nitrogenous wastes?

a) Ammonia

b) Urea

c) Uric acid

d) Gluconic acid

Answer: c

66. How many ommatidia are present in the compound eyes of the cockroach?

a) 1000

b) 2000

c) 6000

d) 7000

Answer: b

67. In which of the following classes does the frog belong?

a) Class Aves

b) Class Amphibia

c) Class Reptilia

d) Class Mammalia

Answer: b

68. Why are frogs not seen during peak summer and winter?

a) They die

b) They play hide and seek

c) They hide to protect themselves

d) They shift their places

Answer: c

69. In how many parts is the body of the frog divisible?

a) One

b) Two

c) Three

d) Four

Answer: b

70. Which of the following structures protect the eyes of frog in water?

a) Tympanum

b) Eyelashes

c) Eyelid

d) Nictitating membrane

Answer: d

71. Why is the alimentary canal of frogs short?

a) They are carnivores

b) They are omnivores

c) They are herbivores

d) They do not eat food

Answer: a

72. By the use of which of the following structures, frogs capture food?

a) Mouth

b) Bilobed tongue

c) Trilobed tongue

d) Hind limb

Answer: b

73. By which of the following do frogs do not respire?

a) Skin

b) Lungs

c) Buccal cavity

d) Ear

Answer: d

74. How many chambers are present in the heart of the frog?

a) Two

b) Three

c) Four

d) Five

Answer: b

75. Which of the following is not a part of the excretory system of frogs?

a) Kidneys

b) Ureters

c) Vasa efferentia

d) Cloaca

Answer: c

76. Where does the urinogenital duct open in the case of frogs?

a) Kidneys

b) Cloaca

c) Urinary bladder

d) Testis

Answer: b

77. In which form does the frog excrete out the nitrogenous waste?

a) Ammonia

b) Nitrogen

c) Urea

d) Uric acid

Answer: c

78. Which of the following is an organ of hearing as well as balancing?

a) Eyes

b) Ear

c) Tongue

d) Skin

Answer: b

79. Which of the following does not pass through cloaca?

a) Faecal matter

b) Tears

c) Urine

d) Sperms

Answer: b

80. Organs organize to form ______

a) organisms

b) tissues

c) cells

d) organ systems

Answer: d

81. Morphology is the study of _____

a) visible features

b) internal features

c) facial features

d) genetic features

Answer: a

82. Which of the following animals is an invertebrate?

a) Lizard

b) Frog

c) Cockroach

d) Snake

Answer: c

83. Select the correct order.

a) Cells, Tissues, Organs, Organ systems

b) Tissues, Cells, Organs, organ systems

c) Organs, Organ systems, Tissues, Cells

d) Cells, Tissues, Organ system, Organs

Answer: a

84. What types of tissues does the heart contain?

a) Muscular, epithelial

b) Connective, muscular, neural

c) Connective, muscular, neural, epithelial

d) Connective, muscular, epithelial

Answer: c

85. Earthworm is a(n) ______

a) terrestrial vertebrate

b) aquatic vertebrate

c) aquatic invertebrate

d) terrestrial invertebrate

Answer: d

86. Which of the following statements about earthworms is true?

a) They are vertebrates

b) They do not live in burrows

c) They can be traced by fecal deposits

d) They inhabit the lower layers of the soil

Answer: c

87. What are the common Indian earthworms?

a) Lacertilia, Pheretima

b) Periplaneta, Lumbricus

c) Pheretima, Lumbricus

d) Periplaneta, Pheretima

Answer: c

88. What is the median mid dorsal line present along the length of an earthworm?

a) Dorsal blood vessel

b) Dorsal root ganglion

c) Prostomium

d) Clitellum

Answer: a

89. Which of the following statements is true about prostomium?

a) It is present in the posterior end of the earthworm

b) It acts as a wedge to open cracks in the soil

c) It is the mouth of the earthworm

d) It does not have a sensory function

Answer: b

90. The first body segment of the earthworm is the _____

a) male genital aperture

b) female genital aperture

c) peristomium

d) clitellum

Answer: c

91. Clitellum is a ______

a) glandular tissue

b) muscular tissue

c) neural tissue

d) connective tissue

Answer: a

92. What is present on the 5th to 9th segments of the earthworm’s body?

a) Clitellum

b) Peristomium

c) Female genital pore

d) Spermathecal apertures

Answer: d

93. Where is the female genital pore present in earthworm?

a) 16th segment

b) 18th segment

c) 14th segment

d) 9th segment

Answer: c

94. Where are the male genital pores present in earthworm?

a) 16th segment

b) 18th segment

c) 14th segment

d) 9th segment

Answer: b

95. What is the main role of setae in earthworm?

a) Storage of food

b) Respiration

c) Reproduction

d) Locomotion

Answer: d

96. What are the pores present on the surface of the body of the earthworm called?

a) Polypore

b) Exospore

c) Nephridiopore

d) Zoospore

Answer: c

97. The epidermal pits in the middle of each segment of the earthworm contains _____

a) setae

b) clitellum

c) nephridiopores

d) typhlosole

Answer: a

98. Which of the following statements is true about setae present in earthworm?

a) They are used for reproduction

b) They are retractable

c) They are L – shaped

d) They cannot be extended

Answer: b

99. The body wall of the earthworm is externally covered by ______

a) mucous

b) capsule

c) epidermis

d) cuticle

Answer: d

100. The epidermis of earthworm is made of ______

a) squamous epithelial cells

b) cuboidal epithelial cells

c) columnar epithelial cells

d) multi-layered squamous epithelial cells

Answer: c

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