Question

Ribosomes are composed mostly of RNA.

   Ribosomes are composed mostly of RNA.

Microbiology

Nina Parker 2016 Edition

Chapter 10, Problem 23

Instant Answer

Solved by Expert Joanna Quigley

06/01/2021

Step 1

Ribosomes are complex molecular machines, found within all living cells, that serve as the site of biological protein synthesis. They link amino acids together in the order specified by messenger RNA (mRNA) molecules. Show more…

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Ribosomes are composed mostly of RNA.

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Key Concepts

Ribosomes

Ribosomes are complex molecular machines found in all living cells that are responsible for synthesizing proteins by translating messenger RNA sequences. They are composed of both RNA and proteins, with RNA playing a crucial role in their structure and function.

Ribosomal RNA (rRNA)

Ribosomal RNA is the primary component of ribosomes by mass and is essential for both the structural integrity and catalytic activity of the ribosome. It forms the scaffold around which ribosomal proteins are arranged and directly participates in the chemical reactions of protein synthesis.

Protein Synthesis

Protein synthesis is the biological process by which cells generate new proteins. Ribosomes read the genetic information encoded in messenger RNA and assemble amino acids in the correct sequence to produce functional proteins, making this process central to all cellular functions.

Catalytic RNA

Catalytic RNA, also known as ribozymes, refers to RNA molecules that act as enzymes. In ribosomes, rRNA not only provides structural support but also catalyzes the formation of peptide bonds during protein synthesis, highlighting the active role of RNA in biochemical reactions.

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