What is the approximate water content percentage inside human brain cells_______?
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Answer: C. 85%
Explanation
Human brain tissue has an extraordinarily high liquid composition compared to other organs. Biochemical measurements indicate that water accounts for roughly eighty-five percent of brain mass. This high hydration level is essential for maintaining proper neurological function. Water serves as the primary fluid medium for biochemical reactions in neural cells. The central nervous system requires constant hydration to protect delicate brain tissues. Cellular membranes and extracellular fluids contribute to the total water volume.
Dehydration can severely impair cognitive function, concentration, and short-term memory. Medical evaluations monitor brain hydration status during severe trauma or heat exhaustion. Neurological health depends on balanced fluid intake and electrolyte concentrations. Twenty percent is much too low and would represent severely desiccated biological tissue. Sixty-five percent corresponds to total body water content rather than the brain specifically. Eighty-nine percent slightly overestimates brain water content compared to standard anatomical values.
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