### body part | organ | organelle:

Ribosome
* Every ribosome is made up of two sites, or subunits.
* Most ribosomes synthesize proteins.
* appear in purple.
* are a type of organelle
  - among the biggest and most intricate structures in the cell
  - ancient structures that show little variation among different forms of life
  - attached to some of the membranes of the endoplasmic reticulum
  - cell particles responsible for protein synthesis
  - composed of special proteins and nucleic acids
  - dense structures in cells which catalyse the assembly of protein chains
* are found in all known cells-prokaryotic and eukaryotic alike
  - living cells , prokaryotes as well as eukaryotes
  - many places around a eukaryotic cell
  - suspended in the cytoplasm or bound to membranes
  - free in the cytoplasm and often attached to the membrane of the endoplasmic reticulum
  - in the main body of the cell , but DNA is only in the nucleus of the cell
  - large molecules that make proteins
  - larger and distinct from the ribosomes found in prokaryotes
  - like tiny factories in the cell
  - made up of two subunits, the small subunit and the large subunit
  - molecular machines that synthesize proteins
* are non-membranous organelles on which proteins are manufactured
  - that are associated with the synthesis of proteins
  - only one type of cell organelle
  - organelles which synthesize proteins
  - other organelles which synthesize proteins
  - present b
  - protein-building factories
* are responsible for assembling the proteins of the cell
  - polypeptide synthesis
  - shipped to the cytoplasm where they assemble amino acids into proteins
  - sites where many of the antibiotic drugs work
* are small dot-like structures in cells
  - organelles inside cells where proteins are assembled
  - small, irregularly shaped particles, composed of two subunits
* are special because they are found in both prokaryotes and eukaryotes
  - organelles that are directly involved in protein synthesis
* are the complex biological machines that are responsible for protein synthesis
  - factories where proteins are produced
  - intracellular structures responsible for manufacturing proteins
  - organelles where proteins are produced
* are the protein builders or the protein synthesizers of the cell
  - factories of all living cells
  - synthesizing complexes of the cell
  - respiration centers of a cell
* are the site of protein assembly
  - synthesis in the cytoplasm
  - sites in cells where proteins are made
* are the sites of protein synthesis in cells
* are the sites where protein molecules are synthesized from amino acids
  - within cells where proteins are produced
  - structures in cells where proteins are assembled
* are tiny bodies in a cell that are involved in protein production
  - granules present in large numbers in the cytoplasm of cells
  - organelles responsible for protein synthesis in the cell
  - too small to see in the light microscope
  - transducers
  - very small and difficult to see
* assemble proteins from smaller building blocks called amino acids.
* attach at first coding region
  - to the outside and synthesize protein into the lumen
* begins translating at the first nucleotide in each input sequence and continues to the end.
* bind and transfer mRNA to synthesize proteins.
* can also be free floating in the cytoplasm.
* can be free or associated with the endoplasmic reticulum
  - present in the cytosol
  - float free in cytosol or attach to endoplasmic reticulum
* contain four different histone proteins.
* dominate the cytoplasm and are major space-occupying cellular elements.
* exist in both eukaryotic and prokaryotic cells.
* float freely in the single compartment.
* function either free in the cytosol or bound to endoplasmic reticulum.
* have no membrane.
* have two distinct subunit structures, a large unit and a small one
  - subunits - small and large
  - subunits, one slightly larger than the other
* help make proteins
  - to translate mRNA and link amino acids together to produce a polypeptide chain
* includes corpi
* interact separately with each cistron.
* leave the nucleolus and cluster together to form polyribosomes.
* lie in the cytoplasm and are the sites where protein synthesis occurs.
* make up a significant portion of nuclear traffic.
* manufacture proteins.
* participate in protein synthesis.
* physically support the other participants in protein synthesis.
* play an important role in protein synthesis.
* produce proteins that form the cell
* provide the catalytic surface upon which proteins are synthesized from amino acids
  - site for protein synthesis
* receive information from the cell nucleus and construction materials from the cytoplasm.
* serve for protein synthesis involving a process called translation.
* sit in some of the endoplasmic reticulum.
* structurally support and catalyze protein synthesis.
* synthesize proteins in the cell by using genetic information to assemble amino acids
* take mRNA and translate it into proteins, so the nucleus can read it.
* work like assembly lines that make enzymes and other cell proteins.
+ DNA, Protein synthesis: Cell biology :: Macromolecules
  * Proteins are made by tiny machines in the cell called ribosomes. Ribosomes are in the main body of the cell, but DNA is only in the nucleus of the cell. The codon is part of the DNA, but DNA never leaves the nucleus.
+ Nucleolus: Organelles
  * The 'nucleolus' is the part of a cell where ribosomes are made. Ribosomes are molecular machines that synthesize proteins. Viewed through a microscope, the nucleolus appears as a dark spot inside of the cell's nucleus. It is made up of dense DNA, RNA and proteins. The nucleolus is in the center of the nucleus.
  * A ribosome is a large complex of RNA and protein. It does RNA translation, building proteins from amino acids using messenger RNA as a template. Ribosomes are found in all living cells, prokaryotes as well as eukaryotes.