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1. • Endoplasmic reticulum

     

     thedailyeco.com

     • endoplasmic reticulum (ER), in biology, a continuous membrane system that forms a series of flattened sacs within the cytoplasm of eukaryotic cells and serves multiple functions, being important particularly in the synthesis, folding, modification, and transport of proteins.
     www.britannica.com/science/endoplasmic-reticulum

     Endoplasmic reticulum (ER) | Definition, Function, & Location

2. People also ask

   What is the structure of the ER?

   • The ER consists of a complex network of tubules and flattened sacs, forming an intricate structure that extends throughout the cytoplasm of the cell. This extensive branching allows for greater surface area and facilitates various cellular processes.

   12 Astonishing Facts About Endoplasmic Reticulum

   facts.net/science/biology/12-astonishing-facts-about-endoplasmic-reticulum/

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   Why is rough ER called rough ER?

   • Rough ER is named for its rough appearance, which is due to the ribosomes attached to its outer (cytoplasmic) surface. Rough ER lies immediately adjacent to the cell nucleus, and its membrane is continuous with the outer membrane of the nuclear envelope.

   Endoplasmic reticulum (ER) | Definition, Function, & Location

   www.britannica.com/science/endoplasmic-reticulum

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   Where is rough ER located in a cell?

   • Rough ER lies immediately adjacent to the cell nucleus, and its membrane is continuous with the outer membrane of the nuclear envelope. The ribosomes on rough ER specialize in the synthesis of proteins that possess a signal sequence that directs them specifically to the ER for processing.

   Endoplasmic reticulum (ER) | Definition, Function, & Location

   www.britannica.com/science/endoplasmic-reticulum

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   What is the difference between rough ER and smooth ER?

   • Differences in certain physical and functional characteristics distinguish the two types of ER, known as rough ER and smooth ER. A scanning electron micrograph of a pancreatic acinar cell, showing mitochondria (blue), rough endoplasmic reticulum (yellow; ribosomes appear as small dots), and Golgi apparatus (gray, at centre and lower left).

   Endoplasmic reticulum (ER) | Definition, Function, & Location

   www.britannica.com/science/endoplasmic-reticulum

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   What is a lace-like reticulum (ER)?

   • The highly convoluted and labyrinthine structure of the ER led to its description in 1945 as a “lace-like reticulum” by cell biologists Keith Porter, Albert Claude, and Ernest Fullman, who produced the first electron micrograph of a cell.

   Endoplasmic reticulum (ER) | Definition, Function, & Location

   www.britannica.com/science/endoplasmic-reticulum

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   How does the ER respond to changes in cellular conditions?

   • The ER is a highly dynamic organelle that can respond to changes in cellular conditions. It can modify its structure and function depending on the needs of the cell, allowing for efficient adaptation to different physiological states.

   12 Astonishing Facts About Endoplasmic Reticulum

   facts.net/science/biology/12-astonishing-facts-about-endoplasmic-reticulum/

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3. www.britannica.com › science › endoplasmic-reticulumEndoplasmic reticulum (ER) | Definition, Function, & Location

   www.britannica.com › science › endoplasmic-reticulum

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   6 days ago · endoplasmic reticulum (ER), in biology, a continuous membrane system that forms a series of flattened sacs within the cytoplasm of eukaryotic cells and serves multiple functions, being important particularly in the synthesis, folding, modification, and transport of proteins.

   • Smooth Endoplasmic Reticulum

     smooth endoplasmic reticulum (SER), meshwork of fine...

   • Sarcoplasmic Reticulum

     sarcoplasmic reticulum, intracellular system of closed...

   • Rough Endoplasmic Reticulum

     This feature distinguishes it superficially and functionally...

4. www.genome.gov › Endoplasmic-Reticulum-roughEndoplasmic Reticulum (Rough) - National Human Genome ...

   www.genome.gov › Endoplasmic-Reticulum-rough

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   5 days ago · Endoplasmic reticulum is a network of membranes inside a cell through which proteins and other molecules move. Proteins are assembled at organelles called ribosomes. When proteins are destined to be part of the cell membrane or exported from the cell, the ribosomes assembling them attach to the endoplasmic reticulum, giving it a rough appearance.

5. Videos

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     Endoplasmic Reticulum Lesson for Kids: Definition & Function

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     Endoplasmic Reticulum - Structure and its Functions

     19 May 2023

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     11:40

     youtube.com

     Endoplasmic reticulum and Golgi bodies | Biology | Khan Academy

     7 Jan 2014

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6. www.britannica.com › science › nervous-systemNervous system - Neurons, Signals, Reflexes | Britannica

   www.britannica.com › science › nervous-system

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   Jun 3, 2024 · The endoplasmic reticulum (ER) is a widely spread membrane system within the neuron that is continuous with the nuclear envelope. It consists of series of tubules, flattened sacs called cisternae, and membrane-bound spheres called vesicles.

7. facts.net › science › biology12 Astonishing Facts About Endoplasmic Reticulum

   facts.net › science › biology

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   Jun 10, 2024 · The endoplasmic reticulum can be classified into two distinct types: the rough endoplasmic reticulum (RER) and the smooth endoplasmic reticulum (SER). The RER is studded with ribosomes, while the SER lacks ribosomes on its surface.

8. www.britannica.com › science › earHuman ear | Structure, Function, & Parts | Britannica

   www.britannica.com › science › ear

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   Jun 17, 2024 · Human ear, organ of hearing and equilibrium that detects and analyzes sound by transduction and maintains the sense of balance. Anatomically, the ear has three distinguishable parts: the outer, middle, and inner ear. Learn about the anatomy and physiology of the human ear in this article.

9. en.wikipedia.org › wiki › MitochondrionMitochondrion - Wikipedia

   en.wikipedia.org › wiki › Mitochondrion

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   2 days ago · The endoplasmic reticulum (ER) is the most significant storage site of calcium, and there is a significant interplay between the mitochondrion and ER with regard to calcium. The calcium is taken up into the matrix by the mitochondrial calcium uniporter on the inner mitochondrial membrane.

10. www.thoughtco.com › cell-membrane-373364Cell Membrane Function and Structure - ThoughtCo

    www.thoughtco.com › cell-membrane-373364

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    Jun 7, 2024 · The cell membrane (plasma membrane) is a thin semi-permeable membrane that surrounds the cytoplasm of a cell. Its function is to protect the integrity of the interior of the cell by allowing certain substances into the cell while keeping other substances out.