Question

Hardest substance in the body is :

• A. Bone
• B. Enamel
• C. Cartilage
• D. Tendon

Answer 1

The correct option is B

Enamel

The correct option is B:

Explanation of the correct option:

1. The enamel of the tooth is the hardest substance in the body.
2. This is because it has a very high mineral content mainly calcium phosphate which makes it resistant to damage.

Explanation of the incorrect option :

Option A:

Bone is made up of ossein protein which is hard but not harder than enamel.

Option C:

Cartilage is made up of chondroitin protein which is not as hard as enamel.

Option D:

1. Tendons are present at the end of muscles that join the muscle to a bone.
2. They are not as hard as enamel.

Final answer: The hardest substance in the body is enamel.