QUIZ : CONNECTIVE TISSUE

CONNECTIVE TISSUE — 30 MULTIPLE CHOICE QUESTIONS

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CONNECTIVE TISSUE — 30 MULTIPLE CHOICE QUESTIONS

Q1. Which feature most characteristically distinguishes connective tissue from epithelial tissue?

(A) Presence of a basement membrane (B) Closely packed cells with little matrix (C) Abundant extracellular matrix between cells (D) Presence of specialised junctions

Explanation: Correct Answer: (C). Connective tissue is characterised by cells embedded in an abundant extracellular matrix consisting of fibres and ground substance.

Q2. The extracellular matrix of connective tissue is primarily produced by:

(A) Macrophages (B) Fibroblasts (C) Mast cells (D) Adipocytes

Explanation: Correct Answer: (B). Fibroblasts synthesise major components of the extracellular matrix, including fibres and ground substance.

Q3. Which connective tissue primarily functions as a packing tissue?

(A) Adipose tissue (B) Areolar tissue (C) Dense regular tissue (D) Reticular tissue

Explanation: Correct Answer: (B). Areolar tissue fills spaces between organs and tissues and helps bind and support different structures.

Q4. Which combination is correctly matched?

(A) Tendon — Bone to bone (B) Ligament — Muscle to bone (C) Tendon — Muscle to bone (D) Areolar tissue — Mineral storage

Explanation: Correct Answer: (C). Tendons connect muscles to bones, whereas ligaments connect bones to other bones.

Q5. The fibres predominantly responsible for tensile strength in connective tissue are:

(A) Elastic fibres (B) Reticular fibres (C) Collagen fibres (D) Keratin fibres

Explanation: Correct Answer: (C). Collagen fibres are strong and resist stretching, providing high tensile strength.

Q6. A connective tissue containing collagen fibres arranged in parallel bundles is most likely:

(A) Dense irregular connective tissue (B) Dense regular connective tissue (C) Areolar tissue (D) Reticular tissue

Explanation: Correct Answer: (B). Parallel arrangement of collagen fibres allows the tissue to resist strong tensile forces mainly in one direction.

Q7. Dense irregular connective tissue is particularly suited for:

(A) Storing fat (B) Withstanding stress from multiple directions (C) Conducting nerve impulses (D) Transporting oxygen

Explanation: Correct Answer: (B). Its collagen fibres are arranged irregularly in different directions, providing multidirectional strength.

Q8. Which tissue is mainly composed of cells specialised for lipid storage?

(A) Reticular tissue (B) Areolar tissue (C) Adipose tissue (D) Dense regular tissue

Explanation: Correct Answer: (C). Adipocytes store lipids and function as an energy reserve while also providing insulation and cushioning.

Q9. Reticular connective tissue is particularly important because it:

(A) Forms tendons (B) Stores calcium (C) Forms a supporting framework in lymphoid organs (D) Transports oxygen

Explanation: Correct Answer: (C). Reticular fibres form a delicate network supporting structures such as lymph nodes, spleen and bone marrow.

Q10. Which of the following is NOT a major function of adipose tissue?

(A) Energy storage (B) Thermal insulation (C) Protection of organs (D) Production of antibodies

Explanation: Correct Answer: (D). Plasma cells produce antibodies. Adipose tissue mainly stores energy, provides insulation and cushions organs.

Q11. The cells of cartilage are called:

(A) Osteocytes (B) Fibroblasts (C) Chondrocytes (D) Adipocytes

Explanation: Correct Answer: (C). Mature cartilage cells are called chondrocytes and are located in spaces called lacunae.

Q12. Chondrocytes are characteristically found in:

(A) Haversian canals (B) Lacunae (C) Volkmann's canals (D) Nephrons

Explanation: Correct Answer: (B). Chondrocytes occur in lacunae within the cartilage matrix.

Q13. Which statement about cartilage is correct?

(A) It is highly vascular (B) It contains osteocytes (C) It is generally avascular (D) Its matrix is harder than bone

Explanation: Correct Answer: (C). Cartilage lacks a direct blood supply. Nutrients reach its cells mainly through diffusion.

Q14. Which type of cartilage is most suitable for structures requiring both strength and resistance to compression?

(A) Hyaline cartilage (B) Elastic cartilage (C) Fibrocartilage (D) Reticular cartilage

Explanation: Correct Answer: (C). Fibrocartilage contains abundant collagen fibres and is adapted to withstand strong mechanical stress and compression.

Q15. Which of the following is correctly matched?

(A) Elastic cartilage — Intervertebral discs (B) Fibrocartilage — External ear (C) Hyaline cartilage — Tracheal rings (D) Elastic cartilage — Articular surfaces only

Explanation: Correct Answer: (C). Hyaline cartilage occurs in the nose, trachea, larynx and articular surfaces. Elastic cartilage occurs in the external ear.

Q16. The primary function of elastic fibres is to provide:

(A) Hardness (B) Tensile strength only (C) Elasticity and recoil (D) Mineral storage

Explanation: Correct Answer: (C). Elastic fibres can stretch and return to their original shape, making them important in elastic tissues.

Q17. Which of the following represents the correct sequence?

(A) Osteocyte → cartilage; Chondrocyte → bone (B) Chondrocyte → cartilage; Osteocyte → bone (C) Fibroblast → blood; Adipocyte → cartilage (D) Osteoblast → adipose tissue; Osteoclast → blood

Explanation: Correct Answer: (B). Chondrocytes are mature cartilage cells, while osteocytes are mature bone cells.

Q18. Which cells are primarily responsible for bone formation?

(A) Osteoclasts (B) Osteocytes (C) Osteoblasts (D) Chondrocytes

Explanation: Correct Answer: (C). Osteoblasts synthesise bone matrix and are involved in bone formation.

Q19. Osteoclasts are primarily associated with:

(A) Bone resorption (B) Cartilage formation (C) Fat storage (D) Antibody production

Explanation: Correct Answer: (A). Osteoclasts break down bone tissue and participate in bone remodelling and mineral regulation.

Q20. The hardness of bone is mainly associated with the presence of:

(A) Elastin and keratin (B) Calcium and phosphate salts (C) Glycogen and lipids (D) Haemoglobin and plasma proteins

Explanation: Correct Answer: (B). Mineral salts, particularly calcium and phosphate, provide hardness to the bone matrix.

Q21. The structural unit of compact bone is known as:

(A) Sarcomere (B) Nephron (C) Osteon or Haversian system (D) Lacuna

Explanation: Correct Answer: (C). The osteon is the basic structural unit of compact bone and contains concentric lamellae surrounding a Haversian canal.

Q22. Which connective tissue has a fluid extracellular matrix?

(A) Bone (B) Cartilage (C) Blood (D) Dense connective tissue

Explanation: Correct Answer: (C). Blood is a specialised fluid connective tissue in which plasma acts as the extracellular matrix.

Q23. Which combination correctly represents the formed elements of blood?

(A) RBCs, WBCs and platelets (B) Plasma, RBCs and collagen (C) WBCs, chondrocytes and platelets (D) RBCs, osteocytes and plasma cells

Explanation: Correct Answer: (A). Blood consists of plasma and formed elements—RBCs, WBCs and platelets.

Q24. Which blood component is primarily involved in clot formation?

(A) Erythrocytes (B) Leukocytes (C) Platelets (D) Plasma proteins only

Explanation: Correct Answer: (C). Platelets are essential for haemostasis and participate in the formation of blood clots.

Q25. Which connective-tissue cell is mainly associated with phagocytosis?

(A) Fibroblast (B) Macrophage (C) Adipocyte (D) Osteoblast

Explanation: Correct Answer: (B). Macrophages engulf microorganisms, foreign particles and dead cells through phagocytosis.

Q26. Mast cells are important because they release substances such as:

(A) Haemoglobin and collagen (B) Histamine and heparin (C) Calcium and phosphate (D) Insulin and glucagon

Explanation: Correct Answer: (B). Mast cells release histamine, which contributes to inflammatory and allergic responses, and heparin, an anticoagulant.

Q27. Which statement correctly explains why blood is classified as connective tissue?

(A) It contains collagen fibres (B) It has cells suspended in an extracellular matrix (C) It contains chondrocytes (D) It connects muscles to bones

Explanation: Correct Answer: (B). Like other connective tissues, blood consists of specialised cells distributed within an extracellular matrix, which is plasma.

Q28. Consider the following statements: **Statement I:** Cartilage is generally avascular. **Statement II:** Bone contains a vascular network. Which option is correct?

(A) Both statements are correct (B) Both statements are incorrect (C) Statement I is correct, Statement II is incorrect (D) Statement I is incorrect, Statement II is correct

Explanation: Correct Answer: (A). Cartilage lacks blood vessels, whereas bone is vascular and receives blood through its vascular network.

Q29. A tissue sample shows cells widely separated by abundant matrix, numerous collagen fibres and relatively few cells. The tissue provides high tensile strength. Which tissue is most likely?

(A) Dense connective tissue (B) Adipose tissue (C) Nervous tissue (D) Epithelial tissue

Explanation: Correct Answer: (A). Dense connective tissue contains abundant fibres, particularly collagen, and provides mechanical strength.

Q30. **Assertion–Reason** **Assertion (A):** Tendons are capable of resisting strong pulling forces. **Reason (R):** Tendons contain densely packed collagen fibres arranged largely in parallel bundles.

(A) Both A and R are true, and R is the correct explanation of A (B) Both A and R are true, but R is not the correct explanation of A (C) A is true, but R is false (D) A is false, but R is true

Explanation: Correct Answer: (A). The parallel arrangement of strong collagen fibres gives tendons high tensile strength, allowing them to withstand the pulling force generated by muscles.

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