NEET Zoology Human Excretory System MCQ Question
Which of the following statements about the human excretory system is correct?
Micturition is controlled by the micturition reflex involving smooth muscle contraction.
Urine has a neutral pH of 7.0 and is colorless in healthy adults.
The adult human excretes approximately 2 liters of urine daily.
The presence of glucose in urine is a normal condition for healthy individuals.
Correct Answer
Detailed Explanation
The micturition reflex initiates the contraction of bladder muscles and relaxation of the urethral sphincter to release urine. The other statements are incorrect as urine is slightly acidic with a pH of 6.0, the average daily excretion is 1 to 1.5 liters, and glucose in urine indicates a disorder (glycosuria).
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