Question:

Bilirubin and biliverd in are present in

  • pancreatic juice
  • saliva
  • bile juice
  • intestinal juice
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The Correct Option is C

Solution and Explanation

Bile is continuously secreted in small amounts by liver cells, stored in gall bladder, and released into duodenum on cholecystokinin $(CCK)$ stimulation. It is a yellowish green or greenish blue alkaline $(pH \,7.7)$ fluid. The bile pigments are bilirubin and biliverdin. The bile pigments result from the breakdown of haemoglobin in RBCs, giving the bile its colouration, which in turn affects the colour of the faeces nodes etc.
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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:

Excretory Products in Different Organisms

Read More: Excretion in Human Beings