Which event occurs if a freshwater fish's gill chloride cells fail during osmoregulation?

💡 Explanation

When chloride cells fail, active ion uptake ceases because these cells normally pump ions from the water into the fish's blood against osmotic gradient, maintaining osmotic balance. Therefore, excess water influx results, which disrupts the internal solute balance, rather than increasing metabolism/excretion or affecting oxygen absorption which are separate processes.

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