Proteins can be denatured by

Options

A. Carbon dixode
B. Carbon monoxide
C. Heat
D. Oxygen.

Answer

**Step-by-Step Solution:**

1. **Understanding Proteins**: Proteins are essential biomolecules that serve as the building blocks of the body. They are polymers made up of amino acids linked together by peptide bonds.

2. **Formation of Peptide Bonds**: Peptide bonds are formed between the carboxyl group of one amino acid and the amino group of another amino acid. This linkage is crucial for the structure and function of proteins.

3. **Definition of Denaturation**: Denaturation refers to the process where the three-dimensional structure of a protein is altered, leading to a loss of its biological function. This can happen due to various factors, including temperature and pH changes.

4. **Effect of Heat on Proteins**: Proteins are sensitive to temperature changes. When heat is applied, the kinetic energy of the molecules increases. This increase in kinetic energy can disrupt the interactions that maintain the protein's structure, particularly affecting the peptide bonds.

5. **Conclusion**: Among the given options (carbon dioxide, carbon monoxide, heat, or oxygen), heat is the factor that can denature proteins. Therefore, the correct answer is heat.

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