ECOLOGY
EXCRETORY PRODUCTS AND THEIR ELIMINATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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stomach, liver
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liver, kidneys
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kidneys, stomach
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kidneys, liver
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Detailed explanation-1: -Hepatic vein is the correct answer.
Detailed explanation-2: -The urea is transported from the liver to the kidneys using the circulatory system. Here, urea is filtered out of the blood and ends up in the bladder as part of urine.
Detailed explanation-3: -The hepatic vein is connected to the liver. It transports the deoxygenated blood with urea away from the liver to the inferior vena cava. That’s why the hepatic vein contains the highest concentration of urea.
Detailed explanation-4: -Tubular Reabsorption and Secretion Urea is a small nitrogenous compound (molecular weight is 60) that is the main end product of protein catabolism in mammals (see Chapter 2.11). It is made predominantly in the liver from ammonia and bicarbonate and is one of the main components of urine.