Examination of a cell by transmission electron microscopy reveals a high density of ribosomes in the cytoplasm. This observation suggests that this cell is actively producing large amounts of which of the following molecules?a. polysaccharides
b. proteins
c. lipids
d. nucleic acids

Answer is option "b"

Explanation:

Proteins are made up of amino acids, or organic compounds, that are linked together through peptide bonds. Different combinations of these amino acids make up all of the proteins you can think of, from the fibrin that forms scabs on a cut finger to a protein that allows rattlesnakes to detect body heatProteins are long chains of amino acids.In other words, amino acids are like the links in a chain.The chain itself represents the protein molecule. Protein chains are then twisted and folded together in specific ways to create certain moleculesProteins are one of the four different types of macromolecules, in addition to carbohydrates, lipids, or fats, and nucleic acids, such as DNA and RNA. Macromolecules are large molecules that perform specialized functions inside living organisms. The structural arrangement of a protein molecule will differ in accordance with its functionHence, the right answer is option b "Proteins"