Q:

What are the three organelles involved in protein synthesis?

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Quick Answer

There are four organelles that are involved in protein synthesis. These include the nucleus, ribosomes, the rough endoplasmic reticulum and the Golgi apparatus, or the Golgi complex. All four work together to synthesize, package and process proteins.

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What are the three organelles involved in protein synthesis?
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Full Answer

Protein synthesis begins with DNA. The DNA in an organism creates the RNA that then codes for and synthesizes the proteins. DNA is found in the cell’s nucleus and makes the RNA in the nucleus as well. The RNA then exits the nucleus and is translated by the cell’s organelles into amino acids. These small subunits are then put together in the ribosomes that are attached to the membrane of the rough endoplasmic reticulum. Then, the proteins exit the ribosomes and exit the rough endoplasmic reticulum to enter the Golgi apparatus. The Golgi apparatus packages the proteins and sends them out of the cell.

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Related Questions

  • Q:

    How does the nucleus control protein synthesis in cytoplasm?

    A:

    The nucleus controls protein synthesis in a cell's cytoplasm in the sense that the genetic codes contained in the nucleus determine the sequence of amino acids that are assembled to build the proteins. This is the only aspect of protein assembly directly controlled by the nucleus, while other mechanisms and structures in the cell are responsible for detecting which proteins are needed. The nucleus serves as a protein code database.

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  • Q:

    How is the nucleus involved in protein synthesis?

    A:

    The transcription phase of protein synthesis occurs in the nucleus. During this phase, an enzyme produces a copy of the cell's DNA, creating ribonucleic acid. The RNA becomes messenger RNA, or mRNA, before exiting the nucleus and entering the cytoplasm.

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  • Q:

    Where does the synthesis of lipids occur?

    A:

    Synthesis of lipids takes place at the smooth endoplasmic reticulum. ER, or endoplasmic reticulum, refers to a network of sacs and membrane-enclosed tubules that starts from the nuclear's membrane all through the cytoplasm.

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  • Q:

    What are unattached ribosomes in the cytosol?

    A:

    Unattached ribosomes, also known as free ribosomes, are described by Seattlepi as intracellular bodies that initiate protein synthesis by translating messenger RNA. These bodies float freely in the cytosol. The mRNA that is translated by the unattached ribosomes stays in the cytosol.

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