AP BIOLOGY

Detailed explanation-1: -The nephrons of the kidneys process blood and create urine through a process of filtration, reabsorption, and secretion. Urine is about 95% water and 5% waste products. Nitrogenous wastes excreted in urine include urea, creatinine, ammonia, and uric acid.

Detailed explanation-2: -The principal task of the nephrons is to balance the plasma to homeostatic set points and excrete potential toxins in the urine. They do this by accomplishing three key functions-filtration, reabsorption, and secretion.

Detailed explanation-3: -The primary function of nephron is removing all waste products including the solid wastes, and other excess water from the blood, converting blood into the urine, reabsorption, secretion, and excretion of numerous substances.

Detailed explanation-4: -By the location of renal corpuscles within the cortex, three types of nephron can be distinguished: superficial, midcortical, and juxtamedullary nephrons.