Home Â» Phagocytosis Â» Crenation. Crenation - cell shrinks by osmosis because H2O leaves cell. solution is HYPERtonic (hyper - means excess, hypo - means insuffient. Crenation (opposite of Lysis -cell swells/destroyed/hypotonic) Please contribute to this project, if you have more information about this term feel free to edit this page.
ARCHIVED: What is ROM? ROM is an acronym for Read-Only Memory. It refers to computer memory chips containing permanent or semi-permanent data. Unlike RAM, ROM is non-volatile; even after you turn off your computer, the contents of ROM will remain. Almost every computer comes with a small amount of ROM containing the boot firmware.
The acronym after the hyphen tells you what you can do with that type of disc or that type of drive. -ROM: Read-Only Memory. You cannot write to a -ROM disc, which left the factory with data already on it. A -ROM drive can read discs but not write to them, and has no use at all for a blank disc. -R: Recordable. You can write to one of these discs once (provided you have an -R drive). But when you're done, it's effectively a -ROM disc.