In fact, they're getting troublingly little sleep: 65 percent are sleeping an average of just six hours and 27 minutes every night, according to the survey, which was conducted by the hotel company Travelodge.
The nucleus is a membrane-enclosed organelle found in eukaryotic cells. It contains the genetic material of the cell, organized as multiple long linear DNA molecules that coil around to form chromosomes. The transcription of RNA also takes place in the nucleus.
In cell biology, an organelle /ÉrÉ¡ÉËnÉl/ is a specialized subunit within a cell that has a specific function.Individual organelles are usually separately enclosed within their own lipid bilayers.The name organelle comes from the idea that these structures are to cells what an organ is to the body (hence the name organelle, the suffix-elle being a diminutive).rganelles are identified by microscopy, and can also be purified by cell fractionation. There are many types of organelles, particularly in eukaryotic cells. While prokaryotes do not possess organelles per se, some do contain protein-based microcompartments, which are thought to act as primitive organelles.