A structure within cells that is an extension of the nuclear membrane and in which proteins slated to become part of the nuclear membrane are translated, folded and transported. Abbreviated ER.

A network of sac-like structures and tubes in the cytoplasm (gel-like fluid) of a cell. Proteins and other molecules move through the endoplasmic reticulum. The outer surface of the endoplasmic reticu [..]

(en-doh-plaz-mik reh-tik-yoo-lum) [Gk. endon, within + plasma, from cytoplasm; L. reticulum, network] An extensive membranous network in eukaryotic cells, continuous with the outer nuclear membrane an [..]

Intracellular complex of membranes in which proteins and lipids, as well as molecules for export, are synthesized and in which the biotransformation reactions of the mono-oxygenase enzyme systems occu [..]

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. S [..]

(ER) network of membranes in eukaryotic cells which helps in control of protein synthesis and cellular organization.

A network of channels in the cytoplasm of cells, to which ribosomes bind when synthesizing proteins.

network of tubes and sacs involved with making protein (with ribosomes) and steroids and with storing calcium and glycogen (stored sugar).

A labyrinth of membranous intracellular tubules on which proteins, lipids, and sugars are synthesized.

(en-do-plaz´mik rue-tik´yuu-lum) A cytoplasmic organelle composed of a network of canals running through the cytoplasm of a cell. endorphins

A specialized membranous organelle within eukaryotic cells responsible for synthesis of membrane-inserted proteins, and for proteins to be exported of proteins to the cell surface or beyond.

The network of membranous tubules and sacs extending from the nucleus to the outer membrane of a typical animal or plant cell.

The cytoplasmic organelle forming a single membrane enclosed space continuous with the outer membrane of the nuclear envelope. It has 2 functional domains described by the presence or absence of ribosomes, the rough endoplasmic reticulum

A system of double membranes in the cytoplasm that is involved in the synthesis of transported proteins. The rough endoplasmic reticulum has ribosomes associated with it. The smooth endoplasmic reticu [..]

Eukaryotic membrane compartment involved in translation, folding, and transport of proteins.

An extensive network of membrane-enclosed tubules and sacs within the cytoplasm of cells, linking the plasma membrane with the nuclear membrane. There are two parts: rough endoplasmic reticulum (with ribosomes attached to its surface manufacturing proteins which are transported to the Golgi complex) and smooth endoplasmic reticulum (which manufactu [..]

An extensive network of membranes. Rough ER is studded with ribosomes and is a site where proteins are made, modified and processed for shipping. The roles of smooth ER include lipid and steroid synth [..]

maze of clear tubular passageways that leads out from the nuclear membrane; involved in the manufacture and transport of proteins. endoskeleton -

The endoplasmic reticulum is a layer of membranes which surround the nucleus of the cell and lie within the cells cytoplasm. It forms a mini-circulatory system which enables substances to move from on [..]

Network of interconnected membranous structures within the cytoplasm of eukaryotic cells. The rough ER, which is associated with ribosomes, functions in the synthesis and processing of secretory and m [..]

A system of cisternae in the Cytoplasm of many Cells. In places the endoplasmic Reticulum is continuous with the Plasma Membrane (Cell Membrane) or outer Membrane of the Nuclear Envelope. If the outer [..]

A type of Endoplasmic Reticulum (ER) where Polyribosomes are present on the cytoplasmic surfaces of the ER Membranes. This form of ER is prominent in Cells specialized for protein Secretion and its pr [..]

A type of Endoplasmic Reticulum lacking associated Ribosomes on the Membrane surface. It Exhibits a wide range of specialized metabolic functions including supplying Enzymes for steroid synthesis, det [..]

A system of cisternae in the CYTOPLASM of many cells. In places the endoplasmic reticulum is continuous with the plasma membrane (CELL MEMBRANE) or outer membrane of the nuclear envelope. If the outer [..]

A type of endoplasmic reticulum (ER) where polyribosomes are present on the cytoplasmic surfaces of the ER membranes. This form of ER is prominent in cells specialized for protein secretion and its pr [..]

A type of endoplasmic reticulum lacking associated ribosomes on the membrane surface. It exhibits a wide range of specialized metabolic functions including supplying enzymes for steroid synthesis, det [..]

A complex of convoluted membranes in eukaryotic cells responsible for protein and lipid synthesis. There are two types: Smooth ER (no attached ribosomes) and Rough ER (with ribosomes). More in the Euk [..]

(E.R.) An extended membranous organelle that proteins destined for the cell membrane or for export are synthesized within (or on).  These proteins are extruded into the lumen of the E.R. as they are synthesized by ribosomes bound to docking proteins on the cytoplasmic surface.  The proteins are then modified by glycosylation and other post translat [..]

a sub-cellular membranous structure. The endoplasmic reticulum is described as either “rough” (containing ribosomes embedded in the membranes) or “smooth” (lacking ribosomes). The rough endoplasmic reticulum is the site of the majority of protein synthesis in eukaryotic cells, as well as protein folding and other post-translational modifications. T [..]

A system of interconnected vesicular and lamellar cytoplasmic membranes that functions especially in the transport of materials within the cell and that is studded with ribosomes in some places.

A membrane system that ramifies throughout the cytoplasm and is involved in the synthesis, processing, transport, and secretion of proteins.

An extensive membranous network in eukaryotic cells, continous with the outer nuclear membrane and composed of ribosome studded (rough) and ribosome free (smooth) regions.

Internal membrane of a eukaryotic cell to which ribosomes are attached.

(cytology) A network of membranes within the cytoplasm of cells, where proteins and lipids are synthesized.