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  2. Endoplasmic reticulum - Wikipedia

    en.wikipedia.org/wiki/Endoplasmic_reticulum

    It is a type of organelle made up of two subunits – rough endoplasmic reticulum (RER), and smooth endoplasmic reticulum (SER). The endoplasmic reticulum is found in most eukaryotic cells and forms an interconnected network of flattened, membrane-enclosed sacs known as cisternae (in the RER), and tubular structures in the SER.

  3. Hepatocyte - Wikipedia

    en.wikipedia.org/wiki/Hepatocyte

    Synthesis of proteins is by the rough endoplasmic reticulum (RER), and both the rough and smooth endoplasmic reticulum (SER) are involved in secretion of the proteins formed. [citation needed] The endoplasmic reticulum (ER) is involved in conjugation of proteins to lipid and carbohydrate moieties synthesized by, or modified within, the hepatocytes.

  4. Microsome - Wikipedia

    en.wikipedia.org/wiki/Microsome

    Rough (containing ribosomes) and smooth (without ribosomes) microsomes are made from the endoplasmic reticulum through cell disruption. These microsomes have an inside that is exactly the same as the endoplasmic reticulum lumen. Both forms of microsomes can be purified by a process known as equilibrium density centrifugation. Rough and smooth ...

  5. Endomembrane system - Wikipedia

    en.wikipedia.org/wiki/Endomembrane_system

    There are two distinct, though connected, regions of ER that differ in structure and function: smooth ER and rough ER. The rough endoplasmic reticulum is so named because the cytoplasmic surface is covered with ribosomes, giving it a bumpy appearance when viewed through an electron microscope. The smooth ER appears smooth since its cytoplasmic ...

  6. SERCA - Wikipedia

    en.wikipedia.org/wiki/SERCA

    SERCA is a P-type ATPase. [1] It resides in the sarcoplasmic reticulum (SR) within myocytes. [1] It is a Ca 2+ ATPase that transfers Ca 2+ from the cytosol of the cell to the lumen of the SR. [1]

  7. Leydig cell - Wikipedia

    en.wikipedia.org/wiki/Leydig_cell

    The acidophilic cytoplasm usually contains numerous membrane-bound lipid droplets and large amounts of smooth endoplasmic reticulum (SER). [4] Besides the abundance of SER with scattered patches of rough endoplasmic reticulum, several mitochondria are also prominent within the cytoplasm.

  8. Biological system - Wikipedia

    en.wikipedia.org/wiki/Biological_system

    Endoplasmic reticulum: outer part of the nuclear envelope forming a continuous channel used for transportation; consists of the rough endoplasmic reticulum and the smooth endoplasmic reticulum Rough endoplasmic reticulum (RER): considered "rough" due to the ribosomes attached to the channeling; made up of cisternae that allow for protein production

  9. Sarcoplasm - Wikipedia

    en.wikipedia.org/wiki/Sarcoplasm

    It has a Golgi apparatus near the nucleus, mitochondria just inside the cell membrane , and a smooth endoplasmic reticulum (specialized for muscle function and called the sarcoplasmic reticulum). [7] While sarcoplasm and myoplasm, viewed etymologically, might seem to be synonyms, they are not.