What is the obligatory water reabsorption?

Which of the following substances is not filtered from the blood into the Bowman's capsule during glomerular filtration?

The first step in the urine formation is the filtration of the blood,which is carried by the ...$A$... and is called ...$B$.... On an average ...$C$... $mL$ of blood is filtered by the kidneys per minute,which constitutes ...$D$... of the blood pumped out by each ventricle of the heart in a minute. Choose the correct options for the blanks $A$ to $D$ to complete the given $NCERT$ statement.

What is glomerular filtrate known as?

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

An adult human excretes,on an average,how much urine per day?