Nothing. Penne is a type of macaroni. Just like rigatoni, tortiglioni and elbows are types of macaroni. A lot of people think that elbow macaroni is the only type of macaroni that is to be called macaroni, but they're wrong.
No; "macaroni" is probably derived from a Latin root (we get "macerate" from the same root), it isn't someone's name. Macaroni (the pasta) is probably an Arabic invention.
I would go with penne or rigatoni. I realize that they are wider versions, but the key is the hole in the pasta. The sauce will coat the inside of them. Just like bucatini.
No macaroni is not a color it is a pasta.
There is not really a difference, expect that macaroni is a type of pasta.
No, macaroni is a pasta made from grain.
yes
Macaroni
one is made with macaroni and one is made with pasta =P
one is made with macaroni and one is made with pasta =P
The macaroni penguin.
Macaroni is Pasta, made from wheat, eggs and water. The only animal product in pasta would be eggs.
Macaroni cheese. Called macaroni and cheese in America and macaroni pie in Jamaica