Question

Match the following characteristics of tooth.
\begin{tabular}{|l|c|l|c|} \hline \multicolumn{2}{|c|}{Column I} & \multicolumn{2}{c|}{Column II} \\ \hline i. & Enamel & a. & Made up of calcified connective tissue \\ ii. & Dentine & b. & Contains blood vessels and nerves \\ iii. & Pulp cavity & c. & Covered by cementum \\ iv. & Root & d. & Hardest substance \\ \hline \end{tabular}
Choose the correct option from below.

• A. i-c ii-d iii-a iv-b
• B. i - d ii - a iii - b iv - c
• C. i-b ii-c iii-d iv-a
• D. i-a ii-b iii-d iv-c

Hint:

Tooth layers: Enamel = hardest, Dentine = support, Pulp = nerves, Root = cementum covered.

Answer 1

The Correct Option is B

Concept:
Tooth structure consists of different layers with specific properties and functions.

Step 1: Match each structure.
• Enamel → Hardest substance in body (d)
• Dentine → Calcified connective tissue (a)
• Pulp cavity → Contains blood vessels and nerves (b)
• Root → Covered by cementum (c)

Step 2: Verify correct combination. \[ i-d,\; ii-a,\; iii-b,\; iv-c \]

Step 3: Conclusion. \[ \text{Correct matching = Option (B)} \]