AP BIOLOGY

Detailed explanation-1: -The genes, which direct heredity and other cellular functions and are found in the nucleus of each cell, are molecules of DNA (deoxyribonucleic acid), which all contain phosphorus.

Detailed explanation-2: -Organic compounds like nucleic acids are also rich in phosphorus. Examples are DNA, RNA. Phosphorus also shows its presence in certain industrially used organic compounds like Plasticizers, Additives of gasoline.

Detailed explanation-3: -A nitrogenous base, phosphate, and the sugar pentose make up nucleic acids. Phosphorus is found in both DNA and RNA, as it is the nucleic acid’s backbone. The presence of phosphoric acid causes nucleic acids to be acidic. Phosphate + sugar + nitrogenous base = nucleic acid.

Detailed explanation-4: -Phosphorus is an element essential to sustaining life largely through phosphates, compounds containing the phosphate ion, PO43−. Phosphates are a component of DNA, RNA, ATP, and phospholipids, complex compounds fundamental to cells.

Detailed explanation-5: -The organic molecules that are nucleic acids are DNA and RNA. DNA is the genetic material of the cell. It is the ultimate source of instructions for coding for proteins. RNA has several functions in the cell.