Which part of a cell allows nutrients and other materials to enter or leave the cell

Which of the following conclusions can be drawn

Monomers are the building blocks of larger molecules, called polymers. for example, proteins are composed of chains of amino acids that are linked together. cellulose is a polymer that makes up plant cell walls. cellulose is made from a chain of c6h10o5 molecules. which monomers are most likely used to produce cellulose? why?

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.