Questions: What level of protein structure is shown in the picture? Primary Secondary Quaternary Tertiary

What level of protein structure is shown in the picture? Primary Secondary Quaternary Tertiary
Transcript text: What level of protein structure is shown in the picture? Primary Secondary Quaternary Tertiary
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Solution

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Solution Steps

Step 1: Analyze the image

The image shows a chain of amino acids linked together by peptide bonds. The "R" groups represent the side chains of the amino acids. The repeating N-C-C backbone is characteristic of a polypeptide chain.

Step 2: Relate image to protein structure levels

The primary structure of a protein is the linear sequence of amino acids. The secondary structure refers to local folded structures like alpha-helices and beta-sheets, stabilized by hydrogen bonds between backbone atoms. Tertiary structure is the overall 3D arrangement of a single polypeptide chain, stabilized by various interactions between side chains. Quaternary structure refers to the arrangement of multiple polypeptide chains in a protein complex.

Step 3: Determine the level shown

Since the image only depicts the linear sequence of amino acids linked by peptide bonds, it represents the primary structure of a protein.

Final Answer

Primary

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