Question

The major constituent of vertebrate bone is

• A. Calcium phosphate
• B. Sodium chloride
• C. Potassium hydroxide
• D. Calcium carbonate

Answer 1

The correct option is A

Calcium phosphate

The correct option is A:

Explanation of the correct option:

1. Bone is a solid, rigid, and tough connective tissue.
2. It is the hardest tissue of the body.
3. The matrix of the bone is made up of 30% of collagen protein and 70% of calcium phosphate.
4. Matrix is hard and is made up of a protein called ossein.

Explanation of the incorrect option:

Option B:

Sodium chloride is not present in bone.

Option C:

Potassium hydroxide is not present in bone.

Option D:

1. Calcium carbonate is present in very less quantity in the bone matrix.
2. Therefore it is not the main component of the bone.

Final Answer: Hence the major constituent of vertebrate bone is Calcium phosphate.