. Pharmaceutical botany. Botany; Botany, Medical. PROTOPLASMIC CELL CONTENTS 3 A cell is a mass of protoplasm containing a nucleus. Protoplasm is the more or less semi-fluid, viscid, foamy, and granu- lar substance in which life resides. It is the "physical basis of life." Vegetable cells generally have cell walls of cellulose surrounding the living protoplasm of the cell (protoplast). Cells divide to form tissues. Protoplasmic Cell Contents Protoplasm consists of four well-differentiated portions: (a) Cytoplasm, or the foamy, often granular matrix of protoplasm outside of the nucleu

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. Pharmaceutical botany. Botany; Botany, Medical. PROTOPLASMIC CELL CONTENTS 3 A cell is a mass of protoplasm containing a nucleus. Protoplasm is the more or less semi-fluid, viscid, foamy, and granu- lar substance in which life resides. It is the "physical basis of life." Vegetable cells generally have cell walls of cellulose surrounding the living protoplasm of the cell (protoplast). Cells divide to form tissues. Protoplasmic Cell Contents Protoplasm consists of four well-differentiated portions: (a) Cytoplasm, or the foamy, often granular matrix of protoplasm outside of the nucleus.. Vacuole Passive bodies (metaplasmor paraplasm) suspended in the cyto- plasmic mesh- work Fig. I.—Diagram of a cell. {From Hegner's Zoology, after Wilson, published by the Macmillan Co.) (b) Nucleus or Nuclearplasm, a denser region of protoplasm con- taining chromatin, a substance staining heavily with certain basic dyes. (c) Nucleolus, a small body of dense protoplasm within the nucleus. (d) Plastids, composed of plastid plasm, small discoid bodies scat- tered about in the cytoplasm. Sometimes, as in the cells of lower plants like the Spirogyra, plastids are large and are then called chromatophores.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Youngken, Heber W. (Heber Wilkinson), 1885-1963; Stewart, Francis Edward, 1853-1941. Philadelphia, P. Blakiston's son & co