PERIPLASM Meaning and
Definition
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Periplasm is a term used in biology to describe the space or compartment located between the inner and outer membranes of Gram-negative bacteria. This area is found in certain types of bacteria and plays a crucial role in their metabolism and survival.
The periplasm is a gel-like, aqueous region that contains various components including proteins, enzymes, toxins, and other molecules. It acts as a protective buffer between the bacterial cytoplasm and the external environment. Due to its location, it has direct contact with the outer membrane, which forms a barrier to prevent the entry of harmful substances into the cell.
Within the periplasm, important cellular processes occur. It serves as the location for the synthesis and folding of proteins, as well as the assembly of cell structures like pili and flagella. Additionally, the periplasmic space is involved in nutrient uptake and transport, including the acquisition of essential molecules such as sugars, amino acids, and ions.
The composition and function of the periplasm may vary depending on the bacterial species and environmental conditions. Furthermore, it can be involved in interactions with other microorganisms, host cells, or the surrounding environment, contributing to processes such as antibiotic resistance, virulence, and symbiotic relationships.
In conclusion, the periplasm is a vital compartment in Gram-negative bacteria that houses various molecules and facilitates essential cellular processes, acting as a bridge between the inner cytoplasm and the outer membrane.
Common Misspellings for PERIPLASM
Etymology of PERIPLASM
The word "periplasm" originates from the Greek roots "peri", which means "around", and "plasma", which means "something formed or molded". In molecular biology, periplasm refers to the region immediately surrounding the cell membrane in bacteria and archaea. The term was first used in scientific literature in the early 20th century.
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