Fact 1: Plants are multicellular eukaryotes with cell walls made of cellulose.

Fact 2: Flowers are plant organs of reproduction.

Given the two facts above, answer the question "What are flower cell walls made of?" with the following options: 
- cellular
 - lmestone
 - cellulitis
 - strong
 - cellulose
 - cellulite
 - heat energy
 - acetic acid


 

     cellulose    