Question

The structure of a prokaryotic ribosome is not the same as a ribosome in an animal cell. As a result, which of the following is correct? (3 points)
Some antibiotics can block the synthesis of peptidoglycan in the walls of bacteria.

Translation can occur at the same time as transcription in eukaryotes but not in prokaryotes.

Some antibiotics can block protein synthesis in bacteria without harming the eukaryotic host.

Prokaryotes are unable to use a greater variety of molecules as food sources than can eukaryotes.

Answer 1

Answer:

Because the structure of a prokaryotic ribosome is not the same as that of a ribosome in an animal cell some antibiotics can block protein synthesis in bacteria without harming the eukaryotic host.

Explanation:

Antibiotics are medicines used to cure infectious diseases by killing bacteria or preventing their replication. One of the mechanisms of action of antibiotics is to act on ribosomes and inhibit protein synthesis.

The ribosomes of prokaryotic cells are 70S, with a ribosomal RNA (rRNA) content of 66-68%, while the ribosome of the animal cell has a sedimentation coefficient of 80S, with an rRNA percentage of 60%. This difference makes it possible for some antibiotics, such as aminoglycosides, to affect bacterial protein synthesis but not the animal cell's protein synthesis.

    The other options are not related to the difference in ribosomes between prokaryotic cells and animal cells.