it extends throughout the cytoplasm
The endoplasmic reticulum (ER) is located in eukaryotic cells
rough er & nucleolus
Smooth endoplasmic reticulum (ER) is found in eukaryotic cells. It is responsible for lipid synthesis, detoxification of drugs and toxins, and storage of calcium ions. Prokaryotic cells lack membrane-bound organelles like the ER.
All eukaryotic cells have and ER. You may be thinking of the lysosome which only an animal cell has.
No, bacteria do not have smooth endoplasmic reticulum (ER). Smooth ER is a cell organelle found in eukaryotic cells, not in prokaryotic cells like bacteria.
The endoplasmic reticulum (ER) is an eukaryotic organelle that forms an interconnected network of tubules, vesicles, and cisternae within cells.
First of all, the endoplasmic reticulum (ER) is only found in eukaryotic cells. The domain prokaryota and archea do not have an ER. The ER consists of vescicles, cisternae and tubules found within the cell. The ER has many functions: * It is essential in protein translation * encapsulation and transport of the protein to its final destination (usually the cell membrane) * isolation of calcium * and storage of several macromolecules Also note that by convention, cell biologists describe the ER as being continuous with the cell membrane, and so the ER plays a fundamental part in endocytosis and exocytosis.
Eukaryotic
ER stands for endoplasmic reticulum, which is a network of membranes found in eukaryotic cells. It plays a key role in the synthesis, folding, modification, and transport of proteins and lipids in the cell.
The endoplasmic reticulum (ER) is a membrane-bound organelle found in eukaryotic cells. It plays a key role in protein and lipid synthesis, as well as the storage and release of calcium ions. The ER can be divided into two regions: the rough ER, which is studded with ribosomes and involved in protein synthesis, and the smooth ER, which functions in lipid metabolism and detoxification.
eukaryotic
A large, double membrane-bound organelle found in eukaryotic cells. Contains DNA and RNA. Organelle - A membrane-bound sub-cellular structure found in eukaryotic cells. The Cell nucleus, mitochondria, ER, and golgi apparatus are all examples.