According to a 2006 study of sexually transmitted diseases, the bacterium Mycoplasma genitalium is the smallest living cell as of 2014. It measures only 200 to 300 nanometers, according to Wikipedia.
Its size categorizes Mycoplasma genitalium as the smallest of the ultramicrobacteria, a special subclass of bacteria that are notably smaller than widely accepted tiny bacteria like chlamydia and Rickettsia. Since the bacterium is to small, the study claims, culturing it for study can last from weeks to months before a sample is large enough for experimentation. Furthermore, these bacteria live inside the genital epithelial cells of its hosts, making it much more difficult to sample than pathogens that exist in the fluids of their hosts.Learn More
Cell metabolism involves several complex biochemical reactions that occur in living organisms to maintain a normal life. These metabolic pathways are broadly classified as anabolism and catabolism.Full Answer >
Cells function similarly to factories in that both take up raw materials and use energy to produce waste and finished products. In the case of the cell, the finished products are proteins that can be used in building and operating the body.Full Answer >
Cytoplasm's main function within a cell is to act as the medium of suspension for its internal structures. These internal structures are called organelles and perform important functions like cellular respiration. The organelles themselves are not naturally buoyant, so protein filaments aid in keeping them afloat throughout the cell.Full Answer >
The biological process by which one cell divides into two or more cells is known as cell division. There are two types of cell division: mitosis and meiosis. Mitosis is the most common form of cell division and results in two identical daughter cells, while meiosis occurs in organisms that reproduce sexually and results in genetically different daughter cells.Full Answer >