# What functional groups are in carbohydrates?

##### 1 Answer
Mar 15, 2014

The hydroxyl (-OH) group is found in carbohydrates.

Most carbohydrates have the basic formula ${C}_{m} {\left({H}_{2} O\right)}_{n}$, where m may be different from n. Each carbon needs to form four bonds; most will join to both a lone hydrogen atom and a hydroxyl group (-OH).

It's this hydroxyl group that gives carbohydrates their polar, hydrophilic nature - and allows them to bond together through the process of dehydration synthesis to form disaccharides and polysaccharides.