17. Which organelle is responsible for organizing protein synthesis?
Answer: C
Ribosomes are responsible for organizing protein synthesis.
Ribosomes play a crucial role in protein synthesis by translating messenger RNA (mRNA) into polypeptide chains, thus forming proteins. This process is essential for cellular function and growth.
A) mitochondria
Mitochondria are known as the powerhouses of the cell, primarily responsible for energy production through ATP synthesis. While they are vital for cellular metabolism, they do not directly organize or participate in protein synthesis.
B) nucleus
The nucleus houses the cell's genetic material and is where transcription occurs, converting DNA into mRNA. However, it does not directly organize the synthesis of proteins; that function is carried out by ribosomes.
C) ribosome
Ribosomes are the organelles that directly facilitate the translation of mRNA into proteins. They can be found free-floating in the cytoplasm or attached to the endoplasmic reticulum, underscoring their central role in the process of protein synthesis.
D) vacuole
Vacuoles are primarily involved in storage and transport within the cell. They do not play a role in protein synthesis or organization, making them unrelated to the question at hand.
Conclusion
Ribosomes are definitively the organelles responsible for organizing protein synthesis, as they directly translate mRNA into proteins. The other options, while important for various cellular functions, do not participate in the synthesis of proteins, clearly distinguishing ribosomes as the correct choice.