Polyhydroxy aldehydes or ketones are molecules with more than one hydroxyl group (− O H), and a carbonyl group (C = O) either at the terminal carbon atom (aldose) or at the second carbon atom (ketose) are called carbohydrates.

Carbohydrates- Polyhydroxy aldehydes or ketones and their derivatives or as substances that yield one of ...

Carbohydrate is a polyhydroxy compound that has an aldehydic or a ketonic functional group either free or as hemiacetal or acetal. It has general formula C n (H 2 O) x. The value of x and n is greater than 3. Carbohydrates on hydrolysis give polyhydroxy aldehydes or polyhdroxy ketones.

Carbohydrates are polyhydroxy aldehydes or polyhydroxy ketone. Cellulose is a carbohydrate used to make a paper. Carbohydrates are also produced as an intermediate in the synthesis of protein.

Carbohydrates are optically active polyhydroxy aldehydes or polyhydroxy ketones or the compounds that can be hydrolysed to polyhydroxy aldehydes or polyhydroxy ketones. Some carbohydrates like Rhamnose do not follow the formula C x ( H 2 O ) y

A carbohydrate that cannot be hydrolysed further to give simpler unit of polyhydroxy aldehyde or ketone is called a monosaccharide. Some common examples are glucose, fructose, ribose, galactose etc. Was this answer helpful?

The carbohydrates can be monosaccharides, oligosaccharides or polysaccharides. Monosaccharides are made up of single unit composed of 3 to 7 carbon atoms, e.g., glyceraldehyde, erythrose, ribose, glucose, fructose, sedoheptulose. The monosaccharides having aldehyde group are called aldose and those having ketone group are called ketose …

Monosaccharide is single polyhydroxy aldehyde (aldose) or ketone (ketose) units. Glucose is a single polyhydroxy aldehyde, while fructose is a single polyhydroxy ketone. A monosaccharide contains a skeleton, of carbon atoms. The minimum number of carbon atoms is three and it can go up to seven.

Polyhydroxy aldehydes or ketones and their derivatives or as substances that yield one of these compounds on hydrolysis.

Carbohydrates are compounds of carbon, hydrogen and oxygen where hydrogen and oxygen occur in the ratio of 2:1. Deoxyribose is an exception as it does not contain hydrogen and oxygen in the ratio of 2:1. Carbohydrates are by definition polyhydroxy aldehydes and ketones.