Where can I find how plants are made up.(besides ask.com)?

Answer 1

This one is for grass structure but it is much the same for a wide variety of plants in general. Also have another link of the flower I will come back and post here in a sec.

You have to scroll down a bit but it is all there and you will have to know it since flowering plants make up over 90% of all plant species.

Edit: One more link. Excellent question by the way.