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Maintaining Water And Nitrogen Balance In The Body (biology Only) (GCSE Biology)

The following is a GCSE Biology test covering 'Maintaining Water And Nitrogen Balance In The Body (biology Only)' from the broader topic Homeostasis And Response. The test is geared towards the AQA exam board style syllabus.
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Which process in the liver converts ammonia produced by deamination into a less toxic compound excreted by the kidneys?
Which structure in the kidney is the basic functional unit that filters blood to form urine?
Why might a person with kidney failure have high blood urea levels and swelling (oedema)?
In dialysis treatment for kidney failure, which process removes excess urea and salts from the patient’s blood?
What is ammonification in the nitrogen cycle?
Which cell type in the nephron senses blood osmolarity and triggers ADH release via the brain?
Why does drinking salt water tend to make a person more dehydrated?
Which process in soils converts ammonium ions (NH4+) into nitrate ions (NO3-) that plants can absorb?
Which type of animal excretes uric acid primarily and why is this advantageous?
What is the main advantage of urea as an excretory product compared with ammonia?
Which best describes how aquaporins in kidney collecting duct cells are regulated to control water reabsorption?