Class 11 Biology Chapter 7: Structural Organisation in Animals – 100 MCQs with Answers
1. The branch of biology that deals with the study of tissues is:
Answer: C) Histology
2. Which of the following is not a connective tissue?
Answer: C) Muscle
3. Which is the protective covering of the body?
Answer: C) Epithelial tissue
4. The cells responsible for transmission of nerve impulses are called:
Answer: A) Neurons
5. Blood is classified as:
Answer: B) Connective tissue
6. Squamous epithelium is found in:
Answer: A) Walls of alveoli
7. The basic structural and functional unit of an organism is:
Answer: C) Cell
8. Which tissue has striations and is under voluntary control?
Answer: C) Skeletal muscle
9. Which type of tissue connects muscles to bones?
Answer: B) Tendon
10. Which of the following animals is diploblastic?
Answer: A) Hydra
11. Which epithelial tissue is ciliated?
Answer: A) Columnar
12. Nephridia are excretory organs of:
Answer: B) Earthworm
13. Compound eyes are found in:
Answer: B) Cockroach
14. Which animal has spiracles for respiration?
Answer: C) Cockroach
15. Malpighian tubules are excretory organs in:
Answer: A) Cockroach
16. Muscles of heart are:
Answer: C) Cardiac
17. The process of ingestion, digestion, absorption, and assimilation occurs in which organ system?
Answer: A) Digestive
18. Notochord is present in:
Answer: C) Frog
19. In cockroach, the blood is:
Answer: B) Colorless
20. Which type of muscle shows branched fibers?
Answer: B) Cardiac muscle
21. The unit of contractile element in a muscle fiber is:
Answer: B) Sarcomere
22. Collagen is mainly found in:
Answer: C) Connective tissue
23. The functional unit of kidney is:
Answer: C) Nephron
24. The connective tissue in bone contains:
Answer: B) Osteocytes
25. Intercellular matrix is maximum in:
Answer: B) Connective tissue
26. Red bone marrow produces:
Answer: D) All of these
27. Which is voluntary muscle?
Answer: B) Striated muscle
28. The ‘Haversian system’ is characteristic of:
Answer: B) Compact bone
29. Epithelial tissue lining the kidney tubules is:
Answer: B) Cuboidal
30. Tendons connect:
Answer: B) Bones to muscles
31. Glial cells provide support and protection to:
Answer: C) Neurons
32. Cartilage in adults is found in:
Answer: D) All of these
33. Blood is a:
Answer: A) Fluid tissue
34. The matrix of cartilage is secreted by:
Answer: B) Chondrocytes
35. Clitellum is present in:
Answer: A) Earthworm
36. Brush bordered epithelium is present in:
Answer: C) Intestine
37. Which is the largest phylum among animals?
Answer: A) Arthropoda
38. Septal nephridia in earthworm occur in:
Answer: C) 15th to last segments
39. In cockroach, the head is:
Answer: A) Triangular
40. Earthworm’s heart is:
Answer: B) Four pairs
41. Muscles attached to bones are:
Answer: B) Striated
42. The nerve which supplies the wings of cockroach is:
Answer: C) Tegmental
43. The exoskeleton in Arthropods is composed of:
Answer: A) Chitin
44. Open circulatory system is found in:
Answer: A) Cockroach
45. Gizzard is part of which organ system in earthworm?
Answer: A) Digestive
46. The typhlosole is present in:
Answer: B) Earthworm
47. Ommatidia are:
Answer: C) Units of compound eye
48. Hepatic caeca in cockroach are related to:
Answer: B) Digestion
49. Which is also called as the “supraventricular gland” in cockroach?
Answer: A) Salivary gland
50. Nephridia in earthworm are analogous to:
Answer: A) Kidneys
51. The nervous system of cockroach is:
Answer: B) Decentralized
52. Septa in earthworm internally divide body into:
Answer: B) Many compartments
53. The eye of frog is protected by:
Answer: B) Nictitating membrane
54. Muscles showing intercalated discs:
Answer: B) Cardiac
55. Oesophagus of frog opens into:
Answer: C) Stomach
56. Fat bodies in frog are useful for:
Answer: B) Hibernation
57. The autonomy of cockroach is its ability to:
Answer: B) Lose limbs
58. Main nitrogenous waste in earthworm is:
Answer: C) Ammonia
59. Which is not a function of blood?
Answer: C) Impulse transmission
60. The digestive gland of cockroach is:
Answer: B) Hepatic caeca
61. In frog, respiration occurs through:
Answer: D) All of these
62. The pharynx of earthworm leads to:
Answer: A) Oesophagus
63. Ootheca is seen in:
Answer: C) Cockroach
64. Exoskeleton of frog is:
Answer: C) None
65. Which of the following is hermaphrodite?
Answer: A) Earthworm
66. The largest ganglion in earthworm:
Answer: C) Supraesophageal
67. Which of the following is bisexual?
Answer: A) Earthworm
68. Earthworm respire by means of:
Answer: B) Skin
69. In cockroach, fertilized eggs are laid in:
Answer: A) Ootheca
70. Typhlosole increases:
Answer: B) Surface area for absorption
71. Which blood cell has no nucleus?
Answer: A) RBC
72. Antennae in cockroach are:
Answer: B) Jointed
73. The mouth of earthworm is found in:
Answer: A) 1st segment
74. Which tissue is present at blood vessel walls?
Answer: A) Simple squamous
75. Excretory organ of frog is:
Answer: C) Kidney
76. Locomotion in earthworm occurs by:
Answer: A) Setae
77. Male reproductive organ in cockroach:
Answer: C) Testis
78. Epithelial tissue involved in absorption and secretion:
Answer: D) Glandular
79. Chloragogen cells in earthworm are analogous to:
Answer: A) Liver cells
80. Exoskeleton of earthworm is:
Answer: B) Mucous
81. The last segment of cockroach is known as:
Answer: D) Pygidium
82. Malpighian tubules in cockroach open into:
Answer: C) Hindgut
83. The functional unit of nervous system is:
Answer: A) Neuron
84. In cockroach, the only gland in both sexes:
Answer: C) Salivary gland
85. Spermatheca is found in:
Answer: B) Cockroach
86. Which acts as respiratory pigment in vertebrates?
Answer: B) Haemoglobin
87. Excretory opening of cockroach:
Answer: A) Anus
88. In cockroach, testis is found in segments:
Answer: C) 4–6
89. U-shape nymphal chamber in cockroach is called:
Answer: C) Brood chamber
90. Segmental ganglia in earthworm are located in:
Answer: C) Ventral nerve cord
91. The process of self-fertilization in earthworm is prevented by:
Answer: D) Copulation
92. In frog, the tympanic membrane covers:
Answer: C) Ear
93. Frog excretes mainly:
Answer: B) Urea
94. Cockroach possesses how many pairs of wings?
Answer: B) 2
95. Spermatheca in cockroach is present in:
Answer: A) Female
96. The anus in frog is present at the:
Answer: C) Posterior end
97. Poikilothermic animals are:
Answer: D) All of these
98. In frog, excretion takes place through:
Answer: A) Cloaca
99. The number of Malpighian tubules in cockroach is:
Answer: C) 150–200
100. The largest cell in blood is:
Answer: C) WBC