DIGESTIVE SYSTEM
LIVER
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
and (2) only
|
|
|
and (3) only
|
|
|
and (3) only
|
|
|
, (2) and (3)
|
Detailed explanation-1: -Liver produces excretory wastes such as urea, ammonia, uric acid etc. It also produces and excretes bile pigments such as bilirubin and biliverdin formed by the breakdown of dead RBCs.
Detailed explanation-2: -Urea is the major excretory product excreted by humans. Land animals like birds and lizards excrete uric acid. Fishes excrete ammonia. Undigested food is digestive waste and not excretory waste.
Detailed explanation-3: -Excretion is the physiological process of elimination of metabolic waste from the body. The excretory products include amino acids, urea, uric acid, carbon dioxide, water, and ammonia.
Detailed explanation-4: -Bilirubin is excreted in bile and urine, and elevated levels may indicate certain diseases. It is responsible for the yellow colour of bruises and the yellow discoloration in jaundice. Q. Bile pigments are the excretory products excreted by the lungs.