EXCRETORY SYSTEM
KIDNEY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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hydrogen ions.
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urea.
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proteins.
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amino acids.
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Detailed explanation-1: -The correct answer is (c) Large proteins. Large proteins are not a normal constituent of urine.
Detailed explanation-2: -Human urine is composed primarily of water (95%). The rest is urea (2%), creatinine (0.1%), uric acid (0.03%), chloride, sodium, potassium, sulphate, ammonium, phosphate and other ions and molecules in lesser amounts30 (Table 1). Protein is only found in trace amounts compared to their values in blood plasma.
Detailed explanation-3: -The normal constituents of urine include urea, uric acid, and creatinine. Glucose and other sugars are considered as abnormal constituents of urine.
Detailed explanation-4: -It consists of water, urea (from amino acid metabolism), inorganic salts, creatinine, ammonia, and pigmented products of blood breakdown, one of which (urochrome) gives urine its typically yellowish colour.
Detailed explanation-5: -Urine is the yellowish colored liquid that is excreted out of the body. It contains nitrogenous wastes such as ammonia, urea and uric acid which are being eliminated along with water.