What organelle plays a crucial role in translating messenger RNA into proteins?

What organelle plays a crucial role in translating messenger RNA into proteins?

• A. Mitochondria
• B. Ribosomes
• C. Nucleus
• D. Lysosomes

Answer: (B)

Ribosomes are essential organelles responsible for translating messenger RNA (mRNA) into proteins, a process known as protein synthesis. They read the sequence of the mRNA, which carries the genetic instructions from DNA, and assemble amino acids in the correct order to form a polypeptide chain that eventually folds into a functional protein. Unlike the nucleus, which houses the genetic material and is involved in transcription (the process of copying DNA into mRNA), ribosomes operate mainly in the cytoplasm and can also be found on the rough endoplasmic reticulum, where they contribute to the synthesis of proteins intended for different cellular locations or for secretion outside the cell. Other organelles, such as mitochondria and lysosomes, have distinct functions related to energy production and waste processing, respectively, rather than direct involvement in translating mRNA into proteins. This highlights the specialized role ribosomes play in the essential biological process of translating genetic information into functional proteins.

Ribosomes are essential organelles responsible for translating messenger RNA (mRNA) into proteins, a process known as protein synthesis. They read the sequence of the mRNA, which carries the genetic instructions from DNA, and assemble amino acids in the correct order to form a polypeptide chain that eventually folds into a functional protein. Unlike the nucleus, which houses the genetic material and is involved in transcription (the process of copying DNA into mRNA), ribosomes operate mainly in the cytoplasm and can also be found on the rough endoplasmic reticulum, where they contribute to the synthesis of proteins intended for different cellular locations or for secretion outside the cell. Other organelles, such as mitochondria and lysosomes, have distinct functions related to energy production and waste processing, respectively, rather than direct involvement in translating mRNA into proteins. This highlights the specialized role ribosomes play in the essential biological process of translating genetic information into functional proteins.