Question

The polyhydroxy aldehydes are called:

• A. proteins
• B. fats
• C. carbohydrates
• D. vitamins

Answer 1

Answer: (C)

carbohydrates

• Polyhydroxy aldehydes or ketones are molecules with more than one hydroxyl group $(-OH)$, and a carbonyl group $(C=O)$ either at the terminal carbon atom (aldose) or at the second carbon atom (ketose) are called carbohydrates.
• Monosaccharides are polyhydroxy aldehydes and are called Simple Sugar, any of the basic compounds that serve as the building blocks of carbohydrates.