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MCQs on Tissues

NORCET Tissues Quiz Part 1

MCQs on Tissues for NORCET Exam

1. The epithelium lining the alveoli of lungs is:

A. Cuboidal epithelium
B. Transitional epithelium
C. Simple squamous epithelium
D. Stratified cuboidal epithelium
Answer: C. Simple squamous epithelium
Rationale: Simple squamous epithelium allows rapid diffusion of gases.

2. Intercalated discs are characteristic of:

A. Smooth muscle
B. Skeletal muscle
C. Cardiac muscle
D. Nervous tissue
Answer: C. Cardiac muscle
Rationale: Intercalated discs help synchronized contraction of cardiac muscle.

3. Which tissue type has least regenerative capacity?

A. Epithelial tissue
B. Nervous tissue
C. Bone tissue
D. Areolar tissue
Answer: B. Nervous tissue
Rationale: Neurons regenerate poorly after injury.

4. Goblet cells mainly function in:

A. Absorption
B. Fat storage
C. Mucus secretion
D. Phagocytosis
Answer: C. Mucus secretion
Rationale: Goblet cells secrete mucus for protection and lubrication.

5. Cartilage is classified as avascular because it:

A. Contains no nerves
B. Lacks blood vessels
C. Cannot repair
D. Contains excess collagen
Answer: B. Lacks blood vessels
Rationale: Cartilage receives nutrients through diffusion.

6. Pseudostratified ciliated columnar epithelium is commonly found in:

A. Trachea
B. Urinary bladder
C. Skin
D. Esophagus
Answer: A. Trachea
Rationale: Respiratory tract contains ciliated epithelium for mucus clearance.

7. Damage to myelin sheath mainly affects:

A. Hormone secretion
B. Muscle storage
C. Nerve impulse conduction
D. Blood formation
Answer: C. Nerve impulse conduction
Rationale: Myelin increases speed of nerve conduction.

8. Which connective tissue stores energy in form of fat?

A. Reticular tissue
B. Adipose tissue
C. Bone tissue
D. Dense fibrous tissue
Answer: B. Adipose tissue
Rationale: Adipocytes store triglycerides as reserve energy.

9. Chondrocytes are present within:

A. Tendons
B. Blood
C. Lacunae
D. Ligaments
Answer: C. Lacunae
Rationale: Chondrocytes occupy lacunae in cartilage.

10. The functional unit of skeletal muscle is:

A. Osteon
B. Sarcomere
C. Neuron
D. Lacuna
Answer: B. Sarcomere
Rationale: Sarcomere is the basic contractile unit of muscle.

11. Transitional epithelium is best adapted for:

A. Diffusion
B. Stretching
C. Filtration
D. Contraction
Answer: B. Stretching
Rationale: Transitional epithelium allows distension of urinary organs.

12. Reticular tissue forms supporting framework in:

A. Lymph nodes
B. Bones
C. Heart
D. Skin
Answer: A. Lymph nodes
Rationale: Reticular fibers form stroma of lymphoid organs.

13. A biopsy from urinary bladder will most likely reveal:

A. Simple columnar epithelium
B. Stratified squamous epithelium
C. Transitional epithelium
D. Cuboidal epithelium
Answer: C. Transitional epithelium
Rationale: Urinary bladder requires stretchable lining.

14. The primary function of red bone marrow is:

A. Fat storage
B. Hematopoiesis
C. Calcium absorption
D. Filtration
Answer: B. Hematopoiesis
Rationale: Red bone marrow produces blood cells.

15. Which muscle type is involuntary and striated?

A. Skeletal muscle
B. Smooth muscle
C. Cardiac muscle
D. Voluntary muscle
Answer: C. Cardiac muscle
Rationale: Cardiac muscle is involuntary but contains striations.

16. Fibroblasts mainly synthesize:

A. Myelin
B. Collagen fibers
C. Hemoglobin
D. Keratin
Answer: B. Collagen fibers
Rationale: Fibroblasts produce collagen and extracellular matrix.

17. Keratinized stratified squamous epithelium is present in:

A. Stomach
B. Skin
C. Bladder
D. Trachea
Answer: B. Skin
Rationale: Epidermis contains keratinized epithelium for protection.

18. Tendons are mainly formed by:

A. Dense regular connective tissue
B. Reticular tissue
C. Adipose tissue
D. Cartilage
Answer: A. Dense regular connective tissue
Rationale: Parallel collagen fibers provide tensile strength to tendons.

19. The insulating covering around axons is called:

A. Sarcolemma
B. Myelin sheath
C. Endomysium
D. Periosteum
Answer: B. Myelin sheath
Rationale: Myelin sheath increases conduction velocity.

20. Smooth muscle is commonly found in the wall of:

A. Heart
B. Stomach
C. Bones
D. Brain
Answer: B. Stomach
Rationale: Hollow visceral organs contain smooth muscle.

21. Which epithelial tissue is best suited for filtration?

A. Simple squamous epithelium
B. Stratified cuboidal epithelium
C. Transitional epithelium
D. Stratified squamous epithelium
Answer: A. Simple squamous epithelium
Rationale: Thin flat cells permit rapid filtration and diffusion.

22. Osteocytes are located within:

A. Canaliculi
B. Lacunae
C. Alveoli
D. Sinusoids
Answer: B. Lacunae
Rationale: Mature bone cells occupy spaces called lacunae.

23. Elastic cartilage is present in:

A. Nose
B. Ear pinna
C. Femur
D. Tendon
Answer: B. Ear pinna
Rationale: Elastic cartilage provides flexibility to external ear.

24. Which neuroglial cells form myelin in CNS?

A. Schwann cells
B. Astrocytes
C. Oligodendrocytes
D. Microglia
Answer: C. Oligodendrocytes
Rationale: Oligodendrocytes produce myelin sheath in central nervous system.

25. The membrane covering outer surface of bone is:

A. Perichondrium
B. Pleura
C. Periosteum
D. Peritoneum
Answer: C. Periosteum
Rationale: Periosteum is connective tissue covering of bone.

26. Which tissue contains abundant extracellular matrix?

A. Connective tissue
B. Epithelial tissue
C. Nervous tissue
D. Muscle tissue
Answer: A. Connective tissue
Rationale: Connective tissue is characterized by abundant matrix material.

27. Vitamin C deficiency mainly affects synthesis of:

A. Keratin
B. Elastin
C. Collagen
D. Myelin
Answer: C. Collagen
Rationale: Vitamin C is essential for collagen synthesis.

28. Cilia in respiratory passages mainly help in:

A. Absorption
B. Gas exchange
C. Removal of mucus
D. Hormone secretion
Answer: C. Removal of mucus
Rationale: Ciliary movement clears mucus and trapped particles.

29. Intervertebral discs are composed mainly of:

A. Hyaline cartilage
B. Fibrocartilage
C. Elastic cartilage
D. Calcified cartilage
Answer: B. Fibrocartilage
Rationale: Fibrocartilage provides strength and shock absorption.

30. The major contractile proteins in muscle are:

A. Elastin and collagen
B. Actin and myosin
C. Keratin and fibrin
D. Tubulin and dynein
Answer: B. Actin and myosin
Rationale: Interaction of actin and myosin produces muscle contraction.

31. Which tissue acts as packing material between organs?

A. Bone tissue
B. Areolar tissue
C. Blood tissue
D. Cartilage
Answer: B. Areolar tissue
Rationale: Areolar tissue fills spaces between organs and supports tissues.

32. Injury to the spinal cord primarily damages which tissue?

A. Epithelial tissue
B. Connective tissue
C. Nervous tissue
D. Cartilage
Answer: C. Nervous tissue
Rationale: The spinal cord is mainly composed of neurons and neuroglial cells.

33. Which epithelial tissue provides protection against friction?

A. Simple cuboidal epithelium
B. Simple squamous epithelium
C. Stratified squamous epithelium
D. Transitional epithelium
Answer: C. Stratified squamous epithelium
Rationale: Multiple layers provide protection from abrasion and friction.

34. Haversian canals are a feature of:

A. Compact bone
B. Cartilage
C. Skeletal muscle
D. Dense connective tissue
Answer: A. Compact bone
Rationale: Compact bone contains osteons with Haversian canals for blood supply.

35. Which cells are responsible for bone resorption?

A. Osteoblasts
B. Osteocytes
C. Osteoclasts
D. Chondrocytes
Answer: C. Osteoclasts
Rationale: Osteoclasts break down bone matrix during remodeling.

36. Which tissue forms the inner lining of blood vessels?

A. Stratified squamous epithelium
B. Endothelium
C. Transitional epithelium
D. Fibrocartilage
Answer: B. Endothelium
Rationale: Endothelium is specialized simple squamous epithelium lining blood vessels.

37. Satellite cells in peripheral ganglia are classified as:

A. Muscle cells
B. Neuroglial cells
C. Bone cells
D. Cartilage cells
Answer: B. Neuroglial cells
Rationale: Satellite cells support neurons in peripheral ganglia.

38. A tendon connects:

A. Bone to bone
B. Muscle to bone
C. Muscle to muscle
D. Bone to cartilage
Answer: B. Muscle to bone
Rationale: Tendons attach muscles to bones to permit movement.

39. Yellow color of adipose tissue is mainly due to stored:

A. Hemoglobin
B. Glycogen
C. Carotene
D. Calcium
Answer: C. Carotene
Rationale: Carotene dissolved in fat gives adipose tissue a yellow appearance.

40. Which tissue is specialized for electrical impulse conduction?

A. Muscle tissue
B. Nervous tissue
C. Cartilage
D. Adipose tissue
Answer: B. Nervous tissue
Rationale: Nervous tissue conducts electrical impulses through neurons.

41. Which connective tissue fiber provides maximum tensile strength?

A. Elastic fibers
B. Reticular fibers
C. Collagen fibers
D. Keratin fibers
Answer: C. Collagen fibers
Rationale: Collagen fibers provide high tensile strength to connective tissues.

42. Which type of cartilage is present at the tip of nose?

A. Fibrocartilage
B. Elastic cartilage
C. Hyaline cartilage
D. Calcified cartilage
Answer: C. Hyaline cartilage
Rationale: Hyaline cartilage supports respiratory passages and nose.

43. Which cells produce antibodies?

A. Fibroblasts
B. Plasma cells
C. Chondrocytes
D. Osteocytes
Answer: B. Plasma cells
Rationale: Plasma cells are specialized B lymphocytes producing antibodies.

44. Which tissue type is responsible for voluntary body movements?

A. Cardiac muscle
B. Smooth muscle
C. Skeletal muscle
D. Nervous tissue
Answer: C. Skeletal muscle
Rationale: Skeletal muscles are attached to bones and controlled voluntarily.

45. The junction between two neurons is called:

A. Sarcomere
B. Synapse
C. Lacuna
D. Canaliculus
Answer: B. Synapse
Rationale: Synapse is the functional junction for nerve impulse transmission.

46. The matrix of bone tissue mainly contains:

A. Calcium salts
B. Keratin
C. Elastin
D. Glycogen
Answer: A. Calcium salts
Rationale: Bone hardness is due to calcium phosphate and calcium carbonate salts.

47. Which tissue primarily forms body covering surfaces?

A. Connective tissue
B. Nervous tissue
C. Epithelial tissue
D. Muscle tissue
Answer: C. Epithelial tissue
Rationale: Epithelial tissue covers body surfaces and lines cavities.

48. Which neuroglial cells provide immune defense in CNS?

A. Astrocytes
B. Oligodendrocytes
C. Schwann cells
D. Microglia
Answer: D. Microglia
Rationale: Microglia act as phagocytic defense cells in nervous tissue.

49. Smooth muscle contraction is mainly controlled by:

A. Somatic nervous system
B. Voluntary impulses
C. Autonomic nervous system
D. Skeletal system
Answer: C. Autonomic nervous system
Rationale: Smooth muscle functions involuntarily under autonomic control.

50. Which tissue is specialized for storage of minerals like calcium?

A. Cartilage
B. Blood
C. Bone tissue
D. Adipose tissue
Answer: C. Bone tissue
Rationale: Bones act as reservoir for calcium and phosphorus.

51. Which epithelial tissue lines the kidney tubules?

A. Simple squamous epithelium
B. Simple cuboidal epithelium
C. Transitional epithelium
D. Stratified columnar epithelium
Answer: B. Simple cuboidal epithelium
Rationale: Kidney tubules are lined by cuboidal cells specialized for secretion and absorption.

52. Which cells are responsible for formation of new bone?

A. Osteocytes
B. Chondrocytes
C. Osteoblasts
D. Osteoclasts
Answer: C. Osteoblasts
Rationale: Osteoblasts synthesize and mineralize bone matrix.

53. Which type of muscle fatigue occurs most rapidly?

A. Cardiac muscle
B. Smooth muscle
C. Skeletal muscle
D. Visceral muscle
Answer: C. Skeletal muscle
Rationale: Skeletal muscle fatigues more rapidly compared to smooth and cardiac muscle.

54. Which tissue fiber allows tissues to stretch and recoil?

A. Collagen fibers
B. Reticular fibers
C. Elastic fibers
D. Keratin fibers
Answer: C. Elastic fibers
Rationale: Elastic fibers provide elasticity to tissues such as lungs and arteries.

55. The supporting cells of peripheral nervous system are:

A. Oligodendrocytes
B. Astrocytes
C. Schwann cells
D. Microglia
Answer: C. Schwann cells
Rationale: Schwann cells form myelin sheath around peripheral nerves.

56. Which cartilage type is present in intervertebral discs?

A. Elastic cartilage
B. Fibrocartilage
C. Hyaline cartilage
D. Calcified cartilage
Answer: B. Fibrocartilage
Rationale: Fibrocartilage provides strength and shock absorption.

57. Which epithelial tissue forms the epidermis of skin?

A. Simple squamous epithelium
B. Transitional epithelium
C. Keratinized stratified squamous epithelium
D. Cuboidal epithelium
Answer: C. Keratinized stratified squamous epithelium
Rationale: Keratinized epithelium protects skin against dehydration and injury.

58. Which cells maintain cartilage matrix?

A. Osteocytes
B. Fibroblasts
C. Chondrocytes
D. Osteoclasts
Answer: C. Chondrocytes
Rationale: Chondrocytes maintain cartilage tissue and matrix.

59. Which muscle tissue is uninucleated and branched?

A. Skeletal muscle
B. Smooth muscle
C. Cardiac muscle
D. Voluntary muscle
Answer: C. Cardiac muscle
Rationale: Cardiac muscle fibers are branched and usually contain one nucleus.

60. The major function of epithelial tissue is:

A. Conduction
B. Protection and lining
C. Support only
D. Blood formation
Answer: B. Protection and lining
Rationale: Epithelial tissue covers body surfaces and lines cavities for protection.

61. Which neuroglial cells act as macrophages in CNS?

A. Astrocytes
B. Schwann cells
C. Microglia
D. Ependymal cells
Answer: C. Microglia
Rationale: Microglia provide immune defense and phagocytosis in CNS.

62. The epithelium lining blood capillaries is:

A. Stratified squamous epithelium
B. Cuboidal epithelium
C. Endothelium
D. Transitional epithelium
Answer: C. Endothelium
Rationale: Endothelium is specialized simple squamous epithelium lining vessels.

63. Which connective tissue fiber is most flexible?

A. Collagen fibers
B. Reticular fibers
C. Elastic fibers
D. Keratin fibers
Answer: C. Elastic fibers
Rationale: Elastic fibers allow stretching and recoil.

64. The contractile unit of cardiac muscle is:

A. Osteon
B. Sarcomere
C. Lacuna
D. Synapse
Answer: B. Sarcomere
Rationale: Sarcomere is the functional contractile unit in all striated muscles.

65. Which epithelial tissue is specialized for absorption in intestine?

A. Simple columnar epithelium
B. Stratified squamous epithelium
C. Transitional epithelium
D. Stratified cuboidal epithelium
Answer: A. Simple columnar epithelium
Rationale: Intestinal lining contains absorptive columnar cells with microvilli.

66. Which cells resorb bone matrix during remodeling?

A. Osteoblasts
B. Osteocytes
C. Osteoclasts
D. Fibroblasts
Answer: C. Osteoclasts
Rationale: Osteoclasts dissolve mineralized bone matrix.

67. Which tissue type is primarily responsible for body movement?

A. Nervous tissue
B. Muscle tissue
C. Connective tissue
D. Epithelial tissue
Answer: B. Muscle tissue
Rationale: Muscle tissue contracts to produce movement.

68. Which cartilage type is strongest?

A. Elastic cartilage
B. Fibrocartilage
C. Hyaline cartilage
D. Calcified cartilage
Answer: B. Fibrocartilage
Rationale: Fibrocartilage contains dense collagen bundles for strength.

69. Which membrane surrounds a bundle of muscle fibers?

A. Endomysium
B. Perimysium
C. Epimysium
D. Sarcolemma
Answer: B. Perimysium
Rationale: Perimysium surrounds fascicles of muscle fibers.

70. Which epithelial tissue forms the lining of oral cavity?

A. Simple squamous epithelium
B. Stratified squamous epithelium
C. Transitional epithelium
D. Cuboidal epithelium
Answer: B. Stratified squamous epithelium
Rationale: Oral cavity requires protection from friction and abrasion.

71. Which connective tissue binds skin to underlying muscles?

A. Dense connective tissue
B. Adipose tissue
C. Areolar tissue
D. Reticular tissue
Answer: C. Areolar tissue
Rationale: Areolar tissue acts as packing and binding material beneath skin.

72. Which type of epithelium is found in Bowman’s capsule of kidney?

A. Stratified squamous epithelium
B. Simple cuboidal epithelium
C. Simple squamous epithelium
D. Transitional epithelium
Answer: C. Simple squamous epithelium
Rationale: Thin squamous cells facilitate filtration in Bowman’s capsule.

73. Which tissue contains osteons?

A. Compact bone
B. Cartilage
C. Adipose tissue
D. Skeletal muscle
Answer: A. Compact bone
Rationale: Osteons are structural units of compact bone.

74. Which cells produce myelin sheath in peripheral nervous system?

A. Astrocytes
B. Oligodendrocytes
C. Schwann cells
D. Microglia
Answer: C. Schwann cells
Rationale: Schwann cells form myelin around peripheral nerves.

75. The main function of cartilage is:

A. Blood formation
B. Flexible support
C. Hormone production
D. Impulse conduction
Answer: B. Flexible support
Rationale: Cartilage supports structures while maintaining flexibility.

76. Which epithelial tissue is present in sweat glands?

A. Stratified cuboidal epithelium
B. Simple squamous epithelium
C. Transitional epithelium
D. Columnar epithelium
Answer: A. Stratified cuboidal epithelium
Rationale: Ducts of sweat glands are lined by stratified cuboidal epithelium.

77. Which connective tissue cell releases histamine during inflammation?

A. Plasma cell
B. Fibroblast
C. Mast cell
D. Osteocyte
Answer: C. Mast cell
Rationale: Mast cells release histamine and heparin during inflammatory reactions.

78. Which muscle tissue is capable of rhythmic automatic contraction?

A. Smooth muscle
B. Skeletal muscle
C. Cardiac muscle
D. Voluntary muscle
Answer: C. Cardiac muscle
Rationale: Cardiac muscle contracts rhythmically without voluntary control.

79. Which structure connects adjacent cardiac muscle cells?

A. Synapse
B. Intercalated discs
C. Sarcolemma
D. Myofibrils
Answer: B. Intercalated discs
Rationale: Intercalated discs allow synchronized contraction of heart muscle.

80. Which tissue primarily functions in support, binding, and protection?

A. Nervous tissue
B. Muscle tissue
C. Epithelial tissue
D. Connective tissue
Answer: D. Connective tissue
Rationale: Connective tissue supports and binds body structures together.

81. Which type of connective tissue forms ligaments?

A. Dense regular connective tissue
B. Areolar tissue
C. Reticular tissue
D. Adipose tissue
Answer: A. Dense regular connective tissue
Rationale: Ligaments contain parallel collagen fibers providing tensile strength.

82. Which epithelial tissue lines the esophagus?

A. Simple columnar epithelium
B. Stratified squamous epithelium
C. Transitional epithelium
D. Cuboidal epithelium
Answer: B. Stratified squamous epithelium
Rationale: Esophagus requires protection against abrasion from swallowed food.

83. The matrix of cartilage is produced by:

A. Fibroblasts
B. Osteoblasts
C. Chondroblasts
D. Plasma cells
Answer: C. Chondroblasts
Rationale: Chondroblasts synthesize cartilage matrix before maturing into chondrocytes.

84. Which muscle type lacks striations?

A. Cardiac muscle
B. Skeletal muscle
C. Smooth muscle
D. Voluntary muscle
Answer: C. Smooth muscle
Rationale: Smooth muscle contains nonstriated spindle-shaped fibers.

85. Which cells support and nourish neurons in CNS?

A. Astrocytes
B. Schwann cells
C. Osteocytes
D. Chondrocytes
Answer: A. Astrocytes
Rationale: Astrocytes provide metabolic and structural support to neurons.

86. Which connective tissue acts as the body's main transport medium?

A. Cartilage
B. Blood
C. Bone
D. Areolar tissue
Answer: B. Blood
Rationale: Blood transports gases, nutrients, hormones, and waste products.

87. Which epithelial modification increases surface area for absorption?

A. Cilia
B. Flagella
C. Microvilli
D. Keratin
Answer: C. Microvilli
Rationale: Microvilli increase absorptive surface area in intestine.

88. Which cartilage type forms fetal skeleton?

A. Elastic cartilage
B. Fibrocartilage
C. Hyaline cartilage
D. Calcified cartilage
Answer: C. Hyaline cartilage
Rationale: Most fetal skeleton is initially composed of hyaline cartilage.

89. Which covering surrounds the entire muscle?

A. Endomysium
B. Sarcolemma
C. Epimysium
D. Perimysium
Answer: C. Epimysium
Rationale: Epimysium is the connective tissue sheath covering whole muscle.

90. Which tissue type forms glands of the body?

A. Nervous tissue
B. Epithelial tissue
C. Muscle tissue
D. Connective tissue
Answer: B. Epithelial tissue
Rationale: Glands are derived from specialized epithelial tissue.

91. Which tissue type is primarily responsible for secretion?

A. Muscle tissue
B. Epithelial tissue
C. Connective tissue
D. Nervous tissue
Answer: B. Epithelial tissue
Rationale: Glandular epithelium performs secretory functions.

92. Which connective tissue cell is mainly involved in allergic reactions?

A. Fibroblast
B. Plasma cell
C. Mast cell
D. Osteocyte
Answer: C. Mast cell
Rationale: Mast cells release histamine during allergic responses.

93. Which type of muscle is found in walls of blood vessels?

A. Skeletal muscle
B. Cardiac muscle
C. Smooth muscle
D. Striated voluntary muscle
Answer: C. Smooth muscle
Rationale: Blood vessel walls contain involuntary smooth muscle.

94. Which tissue provides structural framework to organs like spleen?

A. Adipose tissue
B. Reticular tissue
C. Elastic cartilage
D. Dense connective tissue
Answer: B. Reticular tissue
Rationale: Reticular tissue forms supportive stroma in lymphoid organs.

95. Which epithelial tissue is adapted for rapid diffusion?

A. Transitional epithelium
B. Simple squamous epithelium
C. Stratified columnar epithelium
D. Cuboidal epithelium
Answer: B. Simple squamous epithelium
Rationale: Thin flat cells facilitate rapid exchange of substances.

96. Which cells are responsible for maintaining bone tissue?

A. Osteoblasts
B. Osteocytes
C. Osteoclasts
D. Chondroblasts
Answer: B. Osteocytes
Rationale: Osteocytes maintain mature bone matrix.

97. Which structure allows rapid conduction in myelinated neurons?

A. Synaptic cleft
B. Haversian canal
C. Node of Ranvier
D. Sarcolemma
Answer: C. Node of Ranvier
Rationale: Saltatory conduction occurs between nodes of Ranvier.

98. Which type of junction prevents leakage between epithelial cells?

A. Gap junction
B. Tight junction
C. Synapse
D. Desmosome
Answer: B. Tight junction
Rationale: Tight junctions seal adjacent epithelial cells together.

99. Which connective tissue stores triglycerides?

A. Reticular tissue
B. Bone tissue
C. Adipose tissue
D. Cartilage
Answer: C. Adipose tissue
Rationale: Adipocytes store triglycerides as energy reserve.

100. Which tissue type is characterized by excitability and conductivity?

A. Epithelial tissue
B. Connective tissue
C. Nervous tissue
D. Cartilage
Answer: C. Nervous tissue
Rationale: Nervous tissue responds to stimuli and conducts impulses.



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