Question

# Which one of the following pair of waste substances is removed from blood in ornithine cycle?

A
CO2 and urea
B
Ammonia and urea
C
CO2 and ammonia
D
Urea and sodium salt

Solution

## The correct option is D $$CO_{2}$$ and ammoniaCO2 and ammonia are the pairs of wastes removed from the blood in Ornithine cycle. Urea is formed in Ornithine cycle or urea cycle and urea is formed of two molecules of ammonia and one molecule of CO2. from the blood to excrete it in urine. Most of the urea are produced in the liver. The liver cells continuously release urea into the blood and kidneys withdraw it from the blood to excrete it in urine.So, the correct option is "Carbon dioxide and ammonia'.Bio-Chemistry

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