Calcium gives rigidity to bones and teeth alongwith

Options

A. Oxalate
B. Pectate
C. Carbonate
D. Phosphate.

Answer

To answer the question "Calcium gives rigidity to bones and teeth along with," we need to analyze the options provided and determine which substance, when combined with calcium, contributes to the rigidity of bones and teeth.

### Step-by-Step Solution:

1. **Understanding the Role of Calcium**:
- Calcium is a vital mineral in the human body, primarily known for its role in forming and maintaining strong bones and teeth.

2. **Evaluating the Options**:
- We have four options: oxalate, pectate, carbonate, and phosphate. We will assess each one to see if it contributes to the rigidity of bones and teeth when combined with calcium.

3. **Option 1: Oxalate**:
- Oxalate is an organic acid found in plants. In animals, it can combine with minerals to form stones. However, it does not combine with calcium to contribute to bone rigidity.
- **Conclusion**: Incorrect.

4. **Option 2: Pectate**:
- Pectate can bind to calcium to form calcium pectate, which is involved in removing small amounts of acid produced by cholesterol. However, it does not provide rigidity to bones and teeth.
- **Conclusion**: Incorrect.

5. **Option 3: Carbonate**:
- Carbonate can combine with calcium to form calcium carbonate. While calcium carbonate has various uses, including acting as an antacid, it does not primarily provide rigidity to bones and teeth.
- **Conclusion**: Incorrect.

6. **Option 4: Phosphate**:
- Phosphate combines with calcium to form calcium phosphate. This compound is crucial for bone structure and provides the necessary rigidity to bones and teeth.
- **Conclusion**: Correct.

### Final Answer:
The correct answer is **phosphate**. Calcium phosphate is essential for providing rigidity to bones and teeth.

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