Question:
The yellow colour of urine is caused by
The yellow colour of urine is caused by
Updated On: Jun 18, 2022
- urochrome
- bilirubin
- Biliverdin
- xanthophylls
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The Correct Option is A
Solution and Explanation
The yellow colour of urine is due to presence of pigment urochrome. Apart from water, the major constituent of urine are one or more of the end products of nitrogen cmtabolism? ammonia, urea, uric acid and creatinine. It may also contain various inorganic ions, the pigment urochrome and urobilin, amino acids and purines. Bile an alkaline fluid produced by the liver contains the bile pigments ? bilirubin and biliverdin, which are produced by the breakdown of the blood pigment haemoglobin. Xanthophyll is member of a class of oxygen containing carotenoid pigments, whith provide the characteristic yellow and brown colours of autumn leaves.
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Concepts Used:
Excretory products and their elimination
The physiological process of the elimination of metabolic waste from the body is called excretion. The excretory products comprise amino acids, carbon dioxide, urea, uric acid, water, and ammonia. Some of the Molluscs and Echinoderms excrete waste products from the body in the form of amino acids. Ammonia is the foremost excretory product in animals, it is derived from the proteins exists in the food we eat.
Excretory Products in Different Organisms:
Read More: Excretion in Human Beings