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THE ELECTRICAL CONDUCTIVITY OF PURE PROTOPLASM
The electrical conductivity of the plasmodium of the slime-mold Brefeldia maxima (Fr.) Rost., which constitutes practically pure protoplasm, was found to be approximately equivalent under normal conditions to that of a 0.00145 N NaCl solution, and about 2.8 times that of the liquid in contact with w...
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Formato: | Texto |
Lenguaje: | English |
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The Rockefeller University Press
1925
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2140711/ https://www.ncbi.nlm.nih.gov/pubmed/19872138 |
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author | Brooks, S. C. |
author_facet | Brooks, S. C. |
author_sort | Brooks, S. C. |
collection | PubMed |
description | The electrical conductivity of the plasmodium of the slime-mold Brefeldia maxima (Fr.) Rost., which constitutes practically pure protoplasm, was found to be approximately equivalent under normal conditions to that of a 0.00145 N NaCl solution, and about 2.8 times that of the liquid in contact with which it developed. When bathed in 1 per cent sea water, the conductivity was much increased, becoming greater than that of the surrounding fluid. These preliminary tests are in agreement with the supposition that the protoplasm is permeable to and in equilibrium with its environment in so far as electrolytes are concerned. |
format | Text |
id | pubmed-2140711 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 1925 |
publisher | The Rockefeller University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-21407112008-04-23 THE ELECTRICAL CONDUCTIVITY OF PURE PROTOPLASM Brooks, S. C. J Gen Physiol Article The electrical conductivity of the plasmodium of the slime-mold Brefeldia maxima (Fr.) Rost., which constitutes practically pure protoplasm, was found to be approximately equivalent under normal conditions to that of a 0.00145 N NaCl solution, and about 2.8 times that of the liquid in contact with which it developed. When bathed in 1 per cent sea water, the conductivity was much increased, becoming greater than that of the surrounding fluid. These preliminary tests are in agreement with the supposition that the protoplasm is permeable to and in equilibrium with its environment in so far as electrolytes are concerned. The Rockefeller University Press 1925-01-20 /pmc/articles/PMC2140711/ /pubmed/19872138 Text en Copyright © Copyright, 1925, by The Rockefeller Institute for Medical Research This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/). |
spellingShingle | Article Brooks, S. C. THE ELECTRICAL CONDUCTIVITY OF PURE PROTOPLASM |
title | THE ELECTRICAL CONDUCTIVITY OF PURE PROTOPLASM |
title_full | THE ELECTRICAL CONDUCTIVITY OF PURE PROTOPLASM |
title_fullStr | THE ELECTRICAL CONDUCTIVITY OF PURE PROTOPLASM |
title_full_unstemmed | THE ELECTRICAL CONDUCTIVITY OF PURE PROTOPLASM |
title_short | THE ELECTRICAL CONDUCTIVITY OF PURE PROTOPLASM |
title_sort | electrical conductivity of pure protoplasm |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2140711/ https://www.ncbi.nlm.nih.gov/pubmed/19872138 |
work_keys_str_mv | AT brookssc theelectricalconductivityofpureprotoplasm AT brookssc electricalconductivityofpureprotoplasm |