QQuestionBiology
QuestionBiology
Select the part whose main job is to make proteins.
nucleus
ribosome
smooth endoplasmic reticulum
mitochondria
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Answer
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Step 1:: Understand the problem and recall relevant biological concepts.
The question asks for the cellular organelle responsible for making proteins. Protein synthesis involves the translation of genetic information from mRNA into a protein sequence. This process occurs in the ribosomes.
Step 2:: Provide a clear explanation.
Ribosomes are complex macromolecular structures composed of ribosomal RNA (rRNA) and proteins. They can be found freely floating in the cytoplasm or attached to the endoplasmic reticulum, forming the rough endoplasmic reticulum. Ribosomes serve as the primary site for protein synthesis, where they facilitate translation by joining amino acids together in the correct sequence according to the information encoded in mRNA molecules.
Final Answer
The main job of a ribosome is to make proteins by facilitating translation, the process of joining amino acids together in the correct sequence according to the information encoded in mRNA molecules.
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