No
Proteins .
No It's not a compound word
Choose the word that does not belong
No, important is not a compound word.
Upwards is a compound word.
There is no compound word.A compound word is a word like bus-stop.Husban is spelt like this husband
Upstairs is a compound word, so it is one word.
No it is not a compound word
proteins
sodium cloride
hydrolayses
Salt, because is a chemical compound - NaCl; uranium, boron, hydrogen are chemical elements.