MEMBRANELLE Meaning and
Definition
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A membranelle refers to a specialized organelle found in certain unicellular organisms, specifically in ciliates such as Paramecium. It is a small, hair-like structure that protrudes from the cell surface and is involved in various vital processes. Often shortened to cilia, membranelles are composed of microtubules arranged in a cylindrical pattern, providing rigidity and support to the structure.
Membranelles possess several essential functions that contribute to the survival and overall physiology of ciliates. Firstly, they aid in locomotion by beating in a coordinated manner, propelling the organism through its environment. Their rhythmic movements create currents that facilitate the organism's feeding and movement towards food sources. Additionally, membranelles play a crucial role in sensory perception, enabling ciliates to detect and respond to changes in their environment, including light, temperature, and chemical cues.
Moreover, membranelles are implicated in the process of phagocytosis, through which ciliates engulf their prey. By sweeping food particles or bacteria towards the oral groove, membranelles assist in capturing and engulfing the ingested material, facilitating the formation of a food vacuole within the cell for digestion.
Overall, membranelles are vital components of ciliates' structure and function. Their specialized adaptations allow for directed movements, feeding, sensory perception, and defense mechanisms. Their presence distinguishes ciliates from other microorganisms and contributes to their success in diverse aquatic environments.
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A minute membrane formed of fused cilia, found in certain of the Ciliata.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for MEMBRANELLE
- membranenle
- membranemle
- membranelde
- membranelhe
- membranelne
- membranelme
- membranellu
- membranellm
- membranella
- membranellg
- m embranelle
- me mbranelle
- mem branelle
- memb ranelle
- membr anelle
- membra nelle
- membran elle
- membrane lle
- membranel le
- membranell e
Etymology of MEMBRANELLE
The word "membranelle" comes from the combination of two root words - "membrane" and the diminutive suffix "-elle".
1. Membrane: The word "membrane" originates from the Latin word "membrana" meaning "parchment" or "thin skin". It entered the English language via Old French in the late 14th century. In biology, a membrane refers to a thin, flexible layer of tissue that covers a surface, separates two regions, or encloses a structure.
2. -elle: The suffix "-elle" is a diminutive suffix derived from Old French. It is used to form a diminutive or an affectionate form of the base word it attaches to. In this case, it is added to "membrane" to create "membranelle", which suggests a smaller or lesser version of a membrane.
