When two protein chains combine to form an active protein, the structural level is quaternary.
<h3>What is a quaternary structure?</h3>
The quaternary and tertiary structure of a protein is the tridimensional shape of the protein, which involves protein domains.
The quaternary protein structure refers to the different arrangements generated by different protein subunits.
The primary structure of a protein involves its amino acid sequence, whereas the second structure involves protein chains.
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Answer:
protein
Explanation:
Proteins are constructed from an organism's DNA, which the DNA makes the RNA, which makes proteins. These proteins conduct the basic functions for the organism.
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Your answer would be C.It encloses the cytoplasm.
