THE EFFECTS OF CERTAIN HEAVY METALS ON RESPIRATION

1. The effect of the heavy metals on the respiration of Aspergillus niger is to cause the rate of carbon dioxide production to decrease from the first or to increase and subsequently diminish. 2. The speed of the toxic action varies as a constant power of the concentration. 3. The temperature coeffi...

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Detalles Bibliográficos
Autor principal: Cook, S. F.
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 1926
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2140840/
https://www.ncbi.nlm.nih.gov/pubmed/19872277
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author Cook, S. F.
author_facet Cook, S. F.
author_sort Cook, S. F.
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description 1. The effect of the heavy metals on the respiration of Aspergillus niger is to cause the rate of carbon dioxide production to decrease from the first or to increase and subsequently diminish. 2. The speed of the toxic action varies as a constant power of the concentration. 3. The temperature coefficient of the toxic action is between 1.5 and 2. 4. An hypothesis is advanced to account for the action of the heavy metals, by means of which the experimental results may be accounted for. It is assumed that the metal is activated by a chemical combination with a cell constituent. This active compound alters the velocity constants of the normal respiratory reactions, and thus causes the observed changes in the rate of carbon dioxide production.
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spelling pubmed-21408402008-04-23 THE EFFECTS OF CERTAIN HEAVY METALS ON RESPIRATION Cook, S. F. J Gen Physiol Article 1. The effect of the heavy metals on the respiration of Aspergillus niger is to cause the rate of carbon dioxide production to decrease from the first or to increase and subsequently diminish. 2. The speed of the toxic action varies as a constant power of the concentration. 3. The temperature coefficient of the toxic action is between 1.5 and 2. 4. An hypothesis is advanced to account for the action of the heavy metals, by means of which the experimental results may be accounted for. It is assumed that the metal is activated by a chemical combination with a cell constituent. This active compound alters the velocity constants of the normal respiratory reactions, and thus causes the observed changes in the rate of carbon dioxide production. The Rockefeller University Press 1926-03-20 /pmc/articles/PMC2140840/ /pubmed/19872277 Text en Copyright © Copyright, 1926, 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
Cook, S. F.
THE EFFECTS OF CERTAIN HEAVY METALS ON RESPIRATION
title THE EFFECTS OF CERTAIN HEAVY METALS ON RESPIRATION
title_full THE EFFECTS OF CERTAIN HEAVY METALS ON RESPIRATION
title_fullStr THE EFFECTS OF CERTAIN HEAVY METALS ON RESPIRATION
title_full_unstemmed THE EFFECTS OF CERTAIN HEAVY METALS ON RESPIRATION
title_short THE EFFECTS OF CERTAIN HEAVY METALS ON RESPIRATION
title_sort effects of certain heavy metals on respiration
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2140840/
https://www.ncbi.nlm.nih.gov/pubmed/19872277
work_keys_str_mv AT cooksf theeffectsofcertainheavymetalsonrespiration
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