We can confirm that the correct answer is that proteins are part of the nucleus and the cytoplasm.
<h3>What are proteins?</h3>
Proteins are macromolecules made up of amino acids linked by peptide bonds that have different biological functions such as structural, transport, enzymatic, immune, etc.
Proteins contain in their structure carbon, oxygen, nitrogen, hydrogen and often also sulfur. Proteins are part of the cytoskeleton providing internal support to the cell and a road for the transport of products. And are also part of the nucleus interacting with nucleic acids through histones and ribosomes.
Therefore, we can confirm that proteins are part of the nucleus and the cytoplasm.
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