. The dynamics of living matter. Biochemistry; Reproduction; Regeneration (Animals). TROPISMS AND RELATED PHENOMENA H3 A powerful stroke being directed backward, the animal is pushed forward. Ludloff found that if a Paramecium is struck sidewise by the current, the position of the cilia on the cathode side is re- versed; namely, they are now turned forward (Fig. 31, B); while on the anode side of the animal they remain practically unaltered. Instead of striking symmetrically on both sides of the animal, the cilia on the cathode side strike forward powerfully, those on the anode side backward.
. The dynamics of living matter. Biochemistry; Reproduction; Regeneration (Animals). TROPISMS AND RELATED PHENOMENA H3 A powerful stroke being directed backward, the animal is pushed forward. Ludloff found that if a Paramecium is struck sidewise by the current, the position of the cilia on the cathode side is re- versed; namely, they are now turned forward (Fig. 31, B); while on the anode side of the animal they remain practically unaltered. Instead of striking symmetrically on both sides of the animal, the cilia on the cathode side strike forward powerfully, those on the anode side backward. The animal is thus under the influence of a couple of forces which turn its oral pole toward the cathode side. As soon as it is in this condition the symmetrical cilia are struck equally by the current curves, and they must assume a symmetrical position. Such is, indeed, the case. They are now pointed forward at the oral end, at the aboral end backward (B, Fig. 31). As long as the current is not too strong, the oral region where the cilia point forward is rather small, and therefore the cilia which are pointed backward prevail, and the organism moves forward toward the cathode. That the motion of the organism to the cathode is exclusively due to the position of the cilia, and not to a stimulating effect B +. 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 Loeb, Jacques, 1859-1924. New York : Columbia University Press; London : Macmillan & Co. , Ltd.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectreproduction, bookyea
