APPARENT VIOLATIONS OF THE ALL-OR-NONE LAW IN RELATION TO POTASSIUM IN THE PROTOPLASM | Zendy

W. J. V. Osterhout | Zendy

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APPARENT VIOLATIONS OF THE ALL-OR-NONE LAW IN RELATION TO POTASSIUM IN THE PROTOPLASM

Author(s) -

W. J. V. Osterhout

Publication year - 1954

Publication title -

the journal of general physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.064

H-Index - 127

eISSN - 1540-7748

pISSN - 0022-1295

DOI - 10.1085/jgp.38.2.282

Subject(s) - nitella , potassium , protoplasm , value (mathematics) , paragraph , chemistry , allowance (engineering) , sentence , ion , law , biophysics , mathematics , physics , biochemistry , biology , philosophy , cytoplasm , statistics , quantum mechanics , political science , economics , linguistics , operations management , organic chemistry

In Vol. 37, No. 6, July 20, 1954, page 814, in the third paragraph, delete the first sentence and insert the following: This equation gives excellent results with Nitella for example with 0.001 M KCl outside and 0.05 M KCl in the sap we may use concentrations in place of activities in the equation and put as = 0.05 and ao = 0.001. No allowance is made for any change in the concentration of incoming ions due to their combination with carrier molecules since this change would be small and difficult to estimate. If we put U = 73 and V = 1 we obtain P = 97 mv. which is close to the usual observed value. The expression (73 –1) ÷ (73 + 1) = 0.973.

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