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Question

The yellow colour of urine of the vertebrates is due to

A
Cholesterol
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B
Urochrome
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C
Uric acid
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D
Melanin
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Solution

The correct option is B Urochrome
Urine is a transparent, light yellow liquid with a slightly acidic pH (average pH 6.0). The colour of urine is caused by the pigment urochrome, which is a breakdown product of haemoglobin from worn out red blood corpuscles.. Urochrome and the degradation products of bilirubin (urobilin) make urine yellow coloured. Thus, the correct answer is option B.

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