Passive Electrical Properties of Microorganisms
نویسندگان
چکیده
منابع مشابه
Thermal dependence of passive electrical properties of lizard muscle fibres.
1. The thermal dependence of passive electrical properties was determined for twitch fibres from the white region of the iliofibularis (IF) muscle of Anolis cristatellus (15-35 degrees C) and Sceloporus occidentalis (15-40 degrees C), and for twitch fibres from the white (15-45 degrees C) and red (15-40 degrees C) regions of the IF of Dipsosaurus dorsalis. These species differ in thermal ecolog...
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Potential recordings made simultaneously from opposite ends of the cell indicate that the cytoplasmic compartment of P. caudatum is nearly isopotential. Measured decrements of the spread of steady-state potentials are in essential agreement with calculated decrements for a short cable model of similar dimensions and electrical constants. Action potentials and passively conducted pulses spread a...
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W HILE ALL CELLS OF THE body have a membrane potential, only neurons (and muscle cells) generate electrical signals that can be conducted rapidly over long distances. In the last chapter we saw how these electrical signals are generated by the flux of ions across the cell membrane through specialized ion channels, and how to calculate the expected membrane potential for any set of ionic concent...
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Single cells from the bullfrog (Rana catesbeiana) atrium have been prepared by using a modification of the enzymatic dispersion procedure described by Bagby et al. (1971. Nature [Long.]. 234:351--352) and Fay and Delise (1973. Proc. Natl. Acad. Sci. U.S.A. 70:641--645). Visualization of relaxed cells via phase-contrast or Nomarski optics (magnification, 400--600) indicates that cells range betw...
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The electrical resistances of the transcellular and paracellular pathways across the toad urinary bladder epithelium (a typical "tight" sodium-transporting epithelium) were determined by two independent sets of electrophysiological measurements: (a) the measurement of the total transepithelial resistance, the ratio of resistance of the apical to the basal cell membrane, and cable analysis of th...
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ژورنال
عنوان ژورنال: Biophysical Journal
سال: 1965
ISSN: 0006-3495
DOI: 10.1016/s0006-3495(65)86717-0