The formation of protein can be considered as

Options

A. dehydration synthesis
B. dehydration synthesis
C. hydration synthesis
D. hydration synthesis

Answer

### Step-by-Step Solution:

1. **Understanding Protein Formation**:
- Proteins are large biomolecules made up of smaller units called amino acids. The process of forming proteins involves linking these amino acids together.

2. **Identifying the Reaction Type**:
- The specific type of reaction that occurs during the formation of proteins is known as a dehydration synthesis (or condensation) reaction.

3. **Mechanism of Dehydration Synthesis**:
- In this reaction, two amino acids come together. One amino acid provides a hydroxyl group (-OH) from its carboxylic acid group, while the other amino acid provides a hydrogen atom (H) from its amino group (-NH2).

4. **Water Molecule Release**:
- When these two amino acids react, they form a peptide bond, and a molecule of water (H2O) is released as a byproduct. This is the essence of dehydration synthesis – the removal of water to form a bond.

5. **Formation of Peptide Bonds**:
- The result of this reaction is the formation of a peptide bond, which links the two amino acids together, creating a dipeptide. This process can continue, linking more amino acids to form longer chains, ultimately resulting in a protein.

6. **Conclusion**:
- Therefore, the formation of protein can be considered as dehydration synthesis.

### Final Answer:
The formation of protein can be considered as **dehydration synthesis**.