Q:

Breakdown of erythrocytes in the body

Asmaa
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2022-07-05
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 Breakdown of erythrocytes in the body:

  1. Occurs when they are 6–8 weeks old
  2. Takes place in the reticulo-endothelial system.
  3. Yields iron, most of which is excreted in the urine.
  4. Yields bilirubin which is carried by plasma protein to the liver.
  5. Is required for the synthesis of bile salts.
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Asmaa
2022-07-05
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A. False The normal erythrocyte lifespan is 16–18 weeks.

B. True The RES removes effete RBCs from the circulation.

C. False Most of the iron is retained for further use.

D. True The protein makes the bilirubin relatively water-soluble.

E. False Bile salts are synthesized from sterols in the liver

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