The structure can only be found in a plant cell and not an animal cell

Many structures are there as cell wall, large vacuoles, plastids, chloroplast !

(and for extra, centrioles are present in animal but not in plants. )

This is what i found on google“ the monomers combine with each other via covalent bonds to form larger molecules known as polymers. in doing so, monomers release water molecules as byproducts. this type of reaction is known as dehydration synthesis, which means “to put together while losing water. in the process, a water molecule is formed.” i hope this you