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Question
Biology
Posted 9 months ago
why can't humans drink seawater for hydration? explain.
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Answer from Sia
Posted 9 months ago
Answer
Humans cannot drink seawater for hydration because the high salt concentration in seawater leads to dehydration rather than hydration.
Solution
a
Osmosis: When humans drink seawater, the high salt concentration causes water to move out of the body's cells into the bloodstream to balance the salt levels. This process is called osmosis
b
Hypertonic Solution: Seawater is a hypertonic solution, meaning it has a higher concentration of solutes (salt) compared to the fluids inside human cells. Drinking seawater causes cells to lose water and shrink
c
Dehydration: The loss of water from cells leads to dehydration. The kidneys also work harder to excrete the excess salt, which further increases water loss
Key Concept
Osmosis and Hypertonic Solutions
Explanation
Drinking seawater causes water to move out of cells due to osmosis, leading to dehydration. The high salt concentration in seawater makes it a hypertonic solution, which exacerbates water loss from the body.

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