File Structure of  24 bits vs 16 bits .JPG file

Hi,
I know that the file structure of each and every file is unique and different. I want to know that whether the file structure of a 24 bits .JPG is different from 16 bits .JPG ?? Where the size may differ as well as the pixels in bits may differ but the file structure will differ or not??
Pls. do provide an answer for this..
Thanx,
JavaCrazy

No Replies...I suspect you must have a cut-down version of Google
http://www.google.co.uk/search?hl=en&q=jpg+file+format&btnG=Google+Search&meta=

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