The word "plasmolyze" is spelled as p-l-a-s-m-o-l-y-z-e. The IPA phonetic transcription for this word is /ˈplæzməˌlaɪz/. The word denotes a biological concept where a cell loses water from its cytoplasm and shrinks due to the loss of turgor pressure. The spelling of this word is derived from the Greek root "plasma," meaning "something molded." The suffix "-lyze" comes from the Greek "lysis," which denotes "a breaking apart." Together, the word's spelling reflects its meaning as the process of breaking down/plasma mold.
Plasmolyze is a scientific term that refers to the process in which a cell's cytoplasm, or the fluid inside the cell, starts moving away from its cell wall due to the loss of water or the concentration of solutes surrounding the cell. This phenomenon typically occurs in plant cells, where the presence of a rigid cell wall prevents the cells from bursting when in a hypotonic solution or when water exits the cell due to osmosis.
During plasmolysis, the cell membrane detaches from the cell wall, creating an empty space between the two. This separation is a direct consequence of the decreased pressure inside the cell caused by the outward movement of water. The cytoplasm contracts, eventually forming a shrunken appearance. Plasmolysis is reversible when the cell is placed in a hypertonic solution or when water returns to the surroundings. This reversal is often known as deplasmolysis or rehydration.
Plasmolysis plays a crucial role in understanding plant functions and their responses to environmental conditions, especially water availability. It is an essential laboratory technique used to study osmosis, cell membrane properties, and various aspects of plant physiology. By inducing plasmolysis in cells and observing the changes that occur, scientists can gain insights into a cell's ability to adapt to its environment and gain a better understanding of how plants regulate their water balance.
To cause the shrinkage or dissolution of the cell protoplasm.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "plasmolyze" is derived from the combination of two Greek roots: "plasmo" and "lysis".
1. "Plasmo": This root comes from the Greek word "plasma" (πλάσμα), meaning "form" or "mold". In biology, "plasma" refers to the fluid component of blood or the protoplasm in a cell.
2. "Lysis": This root is from the Greek word "lysis" (λύσις), meaning "loosing" or "dissolving". In biology, "lysis" refers to the breaking down or destruction of cells.
By combining these two roots, "plasmolyze" was formed to describe the process of shrinking or collapsing a cell's protoplasm due to the loss of water in a hypertonic or dry environment.