Which chemical component has the greatest contribution in the total mammalian cell weight__________?

Explanation

Water usually makes up the greatest proportion of a mammalian cell's mass, commonly about 70% or more, and acts as the main solvent for cellular reactions. Proteins, lipids and carbohydrates together generally contribute less total mass than water. Students often choose proteins because they are the most abundant organic macromolecules, but the question asks for the total cell weight, not only dry organic matter.