How much urine does an adult human excrete per day?

At which stage of the $Ornithine$ cycle is the enzyme $Arginase$ used?

Which of the following components of blood does not enter into the nephron?

Assertion: Ultrafiltration takes place in the presence of effective filtration pressure.
Reason: In the ultrafiltration process,blood is filtered in Bowman's capsule; the filtered fluid contains protein and blood corpuscles also.

The blood pressure in the glomerular capillaries causes filtration of blood through:

Which one of the following statements in regard to the excretion by the human kidneys is correct?