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

Option-B

Explanation:

In the given question, the microscopic technique showed that the cell shows the high density of ribosomes in the cytosol.

The ribosomes are the organelles that are associated with the synthesis of the proteins therefore it can be predicted that the cell is active in producing a large amount of protein. The ribosome translates the codons encoded on the mRNA molecule to amino acids which are joined by the peptide bond to form a protein.

Thus, Option-B is correct.

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