What are ribosomes composed of?

Study for DNA History, Replication, and Protein Synthesis Test. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Master your exam content!

Multiple Choice

What are ribosomes composed of?

Explanation:
Ribosomes are ribonucleoprotein complexes made of ribosomal RNA and proteins. The RNA components form the core catalytic center that links amino acids together, while the surrounding proteins help stabilize the structure and assist in assembling the two subunits. This combination is true across organisms, with a small and a large subunit coming together during protein synthesis to translate mRNA into a polypeptide. DNA and lipids don’t constitute the ribosome, and although mRNA and tRNA are essential for translation, they are not the building blocks of the ribosome itself. Carbohydrates and lipids likewise do not form ribosomal components.

Ribosomes are ribonucleoprotein complexes made of ribosomal RNA and proteins. The RNA components form the core catalytic center that links amino acids together, while the surrounding proteins help stabilize the structure and assist in assembling the two subunits. This combination is true across organisms, with a small and a large subunit coming together during protein synthesis to translate mRNA into a polypeptide. DNA and lipids don’t constitute the ribosome, and although mRNA and tRNA are essential for translation, they are not the building blocks of the ribosome itself. Carbohydrates and lipids likewise do not form ribosomal components.

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