AP BIOLOGY

Detailed explanation-1: -Phosphorus is the second most abundant mineral in the body, second to calcium. About 85% of the body’s phosphorus is stored in bones and teeth.

Detailed explanation-2: -It is the second most abundant mineral in the body. It is present in every cell of the body. Most of the phosphorus in the body is found in the bones and teeth.

Detailed explanation-3: -In humans, phosphorus makes up about 1 to 1.4% of fat-free mass. Of this amount, 85% is in bones and teeth, and the other 15% is distributed throughout the blood and soft tissues [1].

Detailed explanation-4: -Phosphorus is most commonly found in rock formations and ocean sediments as phosphate salts. Phosphate salts that are released from rocks through weathering usually dissolve in soil water and will be absorbed by plants.

Detailed explanation-5: -In human adult body, about 90% of total phosphorus is stored in bone as hydroxyapatite (calcium-phosphate) crystals (2). Most of the remaining phosphorus is distributed in soft tissues, and phosphate is predominantly an intracellular ion.