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← Nature & AnimalsWhich outcome occurs when fish encounter hypoxic water forcing anaerobic respiration?
A)Lactic acid accumulates in tissues✓
B)Ammonia excretion through gills increases
C)Sodium ion uptake is significantly enhanced
D)Red blood cell production decreases
💡 Explanation
When fish experience hypoxic conditions, anaerobic respiration kicks in because oxygen is not available as the final electron acceptor for aerobic respiration resulting in lactic acid production. Therefore, lactic acid accumulation results, rather than increased ammonia excretion, enhanced sodium uptake, or decreased red blood production which require different metabolic adjustments.
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