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2.1 & 2.2 Cell Structure, Subcellular Components, and Function

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Ribosomes

Ribosomes are composed of ribosomal RNA (rRNA) and proteins, forming a complex that is crucial for protein synthesis. They translate the genetic code carried by messenger RNA (mRNA) into specific sequences of amino acids, producing proteins. Ribosomes can either be free-floating in the cytoplasm or bound to the endoplasmic reticulum. The presence of ribosomes in all forms of life, from prokaryotes to eukaryotes, reflects the shared evolutionary ancestry of all known organisms, highlighting the fundamental role of protein synthesis in cellular function.

In this unit

7 lessons

  1. 2.1Cell Structure, Subcellular Components, and FunctionThis lesson
  2. 2.2Cell Structure and FunctionOpen lesson
  3. 2.3Cell SizePreview lesson
  4. 2.4Plasma MembranesPreview lesson
  5. 2.5Membrane PermeabilityPreview lesson
  6. 2.6Membrane TransportPreview lesson
  7. 2.7Tonicity and OsmoregulationPreview lesson

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