. Electron-microscopic structure of protozoa . Text-figure 1. Diagrammatic reconstruction of part of idealized cell containing organelles characteristic of many cell types. From Wohlfarth-Bottermann, 1960a: Icm, Invagination of cell membrane, a. surface view, b. section; Er, Endoplasmic reticulum; Mm, Mitochondrion (microtubule type); Nm, Nuclear membrane; N, Nucleolus; C, Centriole; Gz, Golgi zone; Cs, Cell surface; Cm, Cell membrane; Ld, Lipid droplet; Pp, Palade particles, E, Ergastoplasm; Np, Nuclear pore, a. section, b. surface view; Mc, Mitochondrion (crista type). whether or not they ar


. Electron-microscopic structure of protozoa . Text-figure 1. Diagrammatic reconstruction of part of idealized cell containing organelles characteristic of many cell types. From Wohlfarth-Bottermann, 1960a: Icm, Invagination of cell membrane, a. surface view, b. section; Er, Endoplasmic reticulum; Mm, Mitochondrion (microtubule type); Nm, Nuclear membrane; N, Nucleolus; C, Centriole; Gz, Golgi zone; Cs, Cell surface; Cm, Cell membrane; Ld, Lipid droplet; Pp, Palade particles, E, Ergastoplasm; Np, Nuclear pore, a. section, b. surface view; Mc, Mitochondrion (crista type). whether or not they are exclusively endoplasmic or demonstrably reticular. This term was introduced by Porter and Kallman (1952) to describe a system of tubes and sacs ramifying through the cytoplasm of thin whole mounts of tissue culture cells. Because of this observation, and because various membranous structures are frequently seen in sections to be interconnected (very extensively so in some higher plant cells), it has been suggested that the entire protoplasm is segrated into a continuous


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