ANATOMY

Detailed explanation-1: -So, the correct option is ‘breakdown of cholesterol’.

Detailed explanation-2: -Thus, the correct answer is ‘Absorption of food and excess water from the undigested food. ‘

Detailed explanation-3: -It is produced by the liver and excreted by kidney tubules; impaired elimination is an indication of renal disease. However, normal levels can be seen in early disease states. Approximately 90% of uric acid is secreted by the proximal tubules in avian species.

Detailed explanation-4: -Namely, uric acid itself may serve as an immune system stimulant, urate is a potent antioxidant, it helps to maintain blood pressure in a salt-poor environment and it implies some benefits in several disease of central nervous system, probably because of its antioxidant properties (22).

Detailed explanation-5: -Uric acid excretion rate is the product of the filtered load (which can be approximated as plasma ultrafilterable urate x glomerular filtration rate) and fractional excretion of urate (FEUA), which represents the percentage of filtered urate that is excreted in the final urine.