PLEASE HELP: How are larger macromolecules formed from atoms of smaller macromolecules? (this is due today and i need help pls) >:)

Larger macromolecules are formed from the building blocks or single subunits called monomers joining together.

Explanation:

Larger molecules are sometimes called polymers and they are formed from single sub units or smaller molecules or building blocks called monomers covalently joined together.

The monomers then join with each other through covalent bond to form larger macromolecules called polymers and during the combination, water is released as the byproducts.

individual oxygen atoms are formed during photosynthesis.-c.

i think it is true in my reasonment ..