What is the function of a protein macromolecule

The function of the protein macromolecule is to move things in and out of the cell and transport other molecules in the body.

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There are many functions of proteins. They are the basic building blocks of living things and are responsible for the growth and repair of body cells and tissues. The human body is about one half muscle, and muscles are mostly made of proteins. There are seven main types of protein: antibodies, contractile proteins, enzymes, hormonal proteins, storage proteins, structural proteins, and transport proteins.