Which of the following elements is present in protein?*1 puntooxygencarbonhydrogenOption 5Nitrogen

1. Break Down the Problem

We need to identify which elements are commonly found in proteins from the provided options: oxygen, carbon, hydrogen, and nitrogen.

2. Relevant Concepts

Proteins are made up of amino acids, which are organic compounds composed primarily of four elements:

• Carbon (C)
• Hydrogen (H)
• Oxygen (O)
• Nitrogen (N)

3. Analysis and Detail

Each of the options includes elements that are important in the structure of proteins:

• Oxygen (O): Found in the backbone of amino acids and in carboxyl groups.
• Carbon (C): The central element in amino acids, serving as a backbone.
• Hydrogen (H): Attached to carbon and other functional groups.
• Nitrogen (N): Essential component of the amino group in amino acids.

4. Verify and Summarize

All four elements listed play significant roles in the composition of proteins. However, the question specifically asks to identify the elements present in proteins.

Final Answer

All four options (oxygen, carbon, hydrogen, and nitrogen) are elements found in proteins.