text: what is the size of a cheek cell and an onion cell? this is for my bio lab homework. i can't find a web-site with the information so i was hoping that somebody could help me here. hmm...have you search from google. try in context of "images", & type "human cheek cell" or "human cheek epithelial cell" also "onion cell"  good luck....i've just checked & it's there