LIFE SCIENCE

Detailed explanation-1: -The composition of the different organic compounds in the animal body in terms of dry weight is as protein-71%, lipid-12%, nucleic acid-7%, carbohydrate-5% and inorganic and other materials-5%. These four classes of organic material are important and form the basis of organic constituents in the cell.

Detailed explanation-2: -Water is the most abundant molecule in cells, accounting for 70% or more of total cell mass.

Detailed explanation-3: -Most organic compounds making up our cells and body belong to one of four classes: carbohydrates, lipids, proteins, and nucleic acids. These molecules are incorporated into our bodies with the food we eat.

Detailed explanation-4: -For a typical human cell, however, proteins account for about 50 percent of the composition by mass, lipids (of all types) account for about 40 percent, and the remaining 10 percent comes from carbohydrates.