What question did this study set out to answer?

Determine the proportion of solvent or osmotically active water available to dissolve electrolytes within the muscle fibers of the giant barnacle Balanus nubilus.

October 1, 1970The Journal of General PhysiologyOpen Access

Solvent Water for Electrolytes in the Muscle Fiber of the Giant Barnacle

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Authors

JHJ. A. M. HinkeUniversity of British Columbia

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Implication

Experimental study demonstrates a significant fraction of non-solvent water in giant barnacle muscle fibers, indicating intracellular water structuring.

Key Points

Determine the proportion of solvent or osmotically active water available to dissolve electrolytes within the muscle fibers of the giant barnacle Balanus nubilus.
Measured myoplasmic free Na+, K+, and Cl- activities using ion-specific microelectrodes across four distinct experiments.
Determined membrane potential changes as a function of external potassium concentration.
Assessed fiber water content and fiber volume variations in response to changes in bathing solution osmolarity.
Seven independent experimental estimations found that solvent water comprised between 0.64 and 0.72 of total fiber water, with an overall mean of 0.68.
With extracellular space accounting for approximately 7% of fiber water, 25% of analyzable water within the myoplasm does not function as a solvent for osmotically active solutes.

Cite This Study

J. A. M. Hinke (1970) studied this question.

synapsesocial.com/papers/6a917ff490ff22de3cb3b062 https://doi.org/10.1085/jgp.56.4.521

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Implication

Experimental study demonstrates a significant fraction of non-solvent water in giant barnacle muscle fibers, indicating intracellular water structuring.

Solvent Water for Electrolytes in the Muscle Fiber of the Giant Barnacle

Discussion

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Implication

Key Points

Cite This Study

Solvent Water for Electrolytes in the Muscle Fiber of the Giant Barnacle

Discussion

Member takes

Implication

Key Points

Cite This Study

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