alleryUrine of a healthy person normally does NOT contain
ASalts or pigments only
BWater or urea only
CGlucose or proteins
DCreatinine or uric acid only
Answer & Solution
Correct answer: C. Glucose or proteins
1. The chapter compares blood plasma and urine composition.
2. Useful substances like glucose and proteins stay in the blood.
3. Their presence in urine signals diabetes or kidney disease.
4. So option A is correct.
_Source: Selina Concise Biology Class 10, Ch 8 The Excretory System (Mistral OCR'd PDF), section on composition of urine_
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