- A The liver has stopped producing urea from ammonia
- B The urinary bladder fails to store urine properly
- C Urea is being overproduced by the pancreas instead
- D The kidneys cannot filter and excrete urea efficiently
Correct answer: D. The kidneys cannot filter and excrete urea efficiently
Explanation: Uremia results from impaired kidney function, in which urea and other nitrogenous wastes are not adequately filtered out of the blood, leading to their accumulation and potential toxicity.
Concept context
Nitrogenous waste, kidney structure, urine formation in the nephron, and hormonal regulation of excretion.
Read the full Excretory Products and their Elimination notes →