What types of cells or organisms produce this organic compound

while you are at it what type of reaction forms this dehydration or hydrolysis

i don't even understand the question so i'll be very grateful

Your first question is incomplete. You didn't state what organic compound!

Quick review:
Monomers: Building blocks of polymers.
Polymers: Made up of long chains of monomers.

**A monomer can refer to ANY kind of substance. Example, for proteins, monomers are the amino acids and the polymer is the polypeptide. In other words, the polypeptide chain, or polymer, is made up of its monomers, the amino acids!

So...to answer your question:

A dehydration reaction is a reaction that REMOVES H2O (dehydrates) from monomers to synthesize a polymer, which is a long chain of monomers. So, it assembles a polymer.

A Hydrolysis reaction is a reaction that ADDS H2O (hydrates) polymers to BREAK IT DOWN or disassemble the polymer INTO monomers.

Here's a picture showing these two reactions:
http://www.yellowtang.org/images/dehydra…

I hope I have helped you understand this better! :)

You forgot to mention what kind of compound is produced.