What does rRNA contribute to in the cell?

What does rRNA contribute to in the cell?

• A. Energy production
• B. Protein synthesis
• C. Cell division
• D. Cell respiration

Answer: (B)

rRNA, or ribosomal RNA, plays a crucial role in protein synthesis, which is the process by which cells generate proteins. rRNA is a fundamental component of ribosomes, the cellular machinery that facilitates the translation of mRNA (messenger RNA) into a polypeptide chain, ultimately leading to protein formation. Ribosomes are made up of rRNA and proteins, and they can be found either floating freely in the cytoplasm or bound to the endoplasmic reticulum. During translation, rRNA aids in the proper alignment of the mRNA and helps catalyze the formation of peptide bonds between amino acids, linking them together to form proteins. Thus, without rRNA, the synthesis of proteins would not occur effectively, illustrating its essential role in cellular function. In contrast, energy production, cell division, and cell respiration involve other cellular components and processes, such as ATP synthase, various enzymes, and cellular machinery that are not directly related to rRNA's function.

rRNA, or ribosomal RNA, plays a crucial role in protein synthesis, which is the process by which cells generate proteins. rRNA is a fundamental component of ribosomes, the cellular machinery that facilitates the translation of mRNA (messenger RNA) into a polypeptide chain, ultimately leading to protein formation.

Ribosomes are made up of rRNA and proteins, and they can be found either floating freely in the cytoplasm or bound to the endoplasmic reticulum. During translation, rRNA aids in the proper alignment of the mRNA and helps catalyze the formation of peptide bonds between amino acids, linking them together to form proteins. Thus, without rRNA, the synthesis of proteins would not occur effectively, illustrating its essential role in cellular function.

In contrast, energy production, cell division, and cell respiration involve other cellular components and processes, such as ATP synthase, various enzymes, and cellular machinery that are not directly related to rRNA's function.