Question

1. most of what is in your blood is totally ______________________________________________ by your kidneys. then your body _______________________________________________________________________ what it wants to hold on to before the rest is sent to your bladder.
2. amino acids are unique because they have ______________________________________________ in their amine groups. because we cant store amino acids, extras get processed and stored as carbs or fats. the amine group isnt used in those storage molecules but converted into nh₃ - ____________________________________________, which is toxic. the liver converts the ammonia into a less toxic compound, ______________________________________________, which our kidneys filter out into our pee.

Explanation:

For question 4: Kidneys filter blood. Then the body reabsorbs useful substances.
For question 5: Amino acids have nitrogen in amine groups. Ammonia (\(NH_3\)) is toxic. The liver converts ammonia to urea.

Answer:

1. filtered; reabsorbs
2. nitrogen; ammonia; urea