Definition of protoplasm

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Protoplasm (n.) The viscid and more or less granular material of vegetable and animal cells, possessed of vital properties by which the processes of nutrition, secretion, and growth go forward; the so-called physical basis of life; the original cell substance, cytoplasm, cytoblastema, bioplasm sarcode, etc..

Lern More About Protoplasm

Entoplastic :: Entoplastic (a.) Pertaining to, or composed of, entoplasm; as, the entoplastic products of some Protozoa, or the entoplastic modification of the cell protoplasm, by which a nucleus is produced..
Metazoa :: Metazoa (n. pl.) Those animals in which the protoplasmic mass, constituting the egg, is converted into a multitude of cells, which are metamorphosed into the tissues of the body. A central cavity is commonly developed, and the cells around it are at first arranged in two layers, -- the ectoderm and endoderm. The group comprises nearly all animals except the Protozoa..
Intracellular :: Intracellular (a.) Within a cell; as, the intracellular movements seen in the pigment cells, the salivary cells, and in the protoplasm of some vegetable cells..
Paramitome :: Paramitome (n.) The fluid portion of the protoplasm of a cell.
Monadiform :: Monadiform (a.) Having the form of a monad; resembling a monad in having one or more filaments of vibratile protoplasm; as, monadiform young..
Stereopticon :: Stereoplasm (n.) The solid or insoluble portion of the cell protoplasm. See Hygroplasm.
Karyoplasma :: Karyoplasma (n.) The protoplasmic substance of the nucleus of a cell: nucleoplasm; -- in opposition to kytoplasma, the protoplasm of the cell..
Plasmogen :: Plasmogen (n.) The important living portion of protoplasm, considered a chemical substance of the highest elaboration. Germ plasm and idioplasm are forms of plasmogen..
Ectoplasm :: Ectoplasm (n.) The outer hyaline layer of protoplasm in a vegetable cell.
Sarcode :: Sarcode (n.) A name applied by Dujardin in 1835 to the gelatinous material forming the bodies of the lowest animals; protoplasm.
Cytode :: Cytode (n.) A nonnucleated mass of protoplasm, the supposed simplest form of independent life differing from the amoeba, in which nuclei are present..
Metabolism :: Metabolism (n.) The act or process, by which living tissues or cells take up and convert into their own proper substance the nutritive material brought to them by the blood, or by which they transform their cell protoplasm into simpler substances, which are fitted either for excretion or for some special purpose, as in the manufacture of the digestive ferments. Hence, metabolism may be either constructive (anabolism), or destructive (katabolism)..
Germogen :: Germogen (n.) A polynuclear mass of protoplasm, not divided into separate cells, from which certain ova are developed..
Karyokinesis :: Karyokinesis (n.) The indirect division of cells in which, prior to division of the cell protoplasm, complicated changes take place in the nucleus, attended with movement of the nuclear fibrils; -- opposed to karyostenosis. The nucleus becomes enlarged and convoluted, and finally the threads are separated into two groups which ultimately become disconnected and constitute the daughter nuclei. Called also mitosis. See Cell development, under Cell..
Mitome :: Mitome (n.) The denser part of the protoplasm of a cell.
Protoplasmic :: Protoplasmic (a.) Of or pertaining to the first formation of living bodies.
"aleurone :: Aleurone (n.) An albuminoid substance which occurs in minute grains (protein granules) in maturing seeds and tubers; -- supposed to be a modification of protoplasm..
Plasmodium :: Plasmodium (n.) A jellylike mass of free protoplasm, without any union of amoeboid cells, and endowed with life and power of motion..
Idioplasma :: Idioplasma (n.) That portion of the cell protoplasm which is the seat of all active changes, and which carries on the function of hereditary transmission; -- distinguished from the other portion, which is termed nutritive plasma. See Hygroplasm..
Deutoplasm :: Deutoplasm (n.) The lifeless food matter in the cytoplasm of an ovum or a cell, as distinguished from the active or true protoplasm; yolk substance; yolk..
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