Human excretory system
Human excretory system is a Science & Technology concept from the MPSC syllabus, tested in 3 past MPSC questions (2014, 2016, 2017). Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.
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यूरिया चे वहन कोण करते ? / Urea is transported by :
Urea, being a nitrogenous waste product formed in the liver, is transported through the blood plasma to the kidneys for excretion.
एका मिनिटात मूत्रपिंडातून किती रक्त वाहते ? How much blood flows through the kidneys per minute ?
Approximately 1 to 1.2 litres of blood flows through the human kidneys per minute, which accounts for roughly 20-25% of the cardiac output.
खालीलपैकी कोणता/कोणारे नाइट्रोजन युक्त टाकाऊ पदार्थ नाही/नाहीत ? Which of the following is/are not a nitrogenous excretory waste ?
(a)अमोनिया / Ammonia
(b)क्रिएटीन / Creatine
(c)यूरिया / Urea
(d)क्रिएटिनाइन / Creatinine
Creatine is an amino acid derivative found in muscle tissue and is not a nitrogenous excretory waste product, whereas ammonia, urea, and creatinine are excretory wastes.