Biological termModerate0.5 marks
4(b)
Give the Biological / technical term for the following:
Pigment providing colour to urine.
Topic: Urochrome
Previous-year question practice database
Answer
Exam answer
UROCHROME.
Explanation
Urochrome gives urine its pale yellow colour, and is formed from the breakdown of HAEMOGLOBIN from worn-out red blood cells — the same process that produces the bile pigments.
The prefix URO- means urine, which identifies it at once.
The DEPTH of the yellow is diagnostic: concentrated urine is darker, which is why pale urine indicates good hydration.
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