Ace A Level Biology 2025 – Dive Deep and Conquer Science!

Question: 1 / 715

What is a monosaccharide?

A complex carbohydrate molecule

A type of amino acid

A single sugar molecule

A monosaccharide is defined as a single sugar molecule, which serves as the most basic unit of carbohydrates. These simple sugars consist of carbon, hydrogen, and oxygen, typically with the formula (CH2O)n, where n is usually between three and seven. Common examples of monosaccharides include glucose, fructose, and galactose. Their structure is characterized by having a carbon backbone with hydroxyl groups (-OH) and a ketone or aldehyde functional group, which makes them the primary building blocks for more complex carbohydrates, such as disaccharides and polysaccharides. This fundamental role in carbohydrate chemistry is essential to many biological processes, including energy production, cellular respiration, and the synthesis of larger carbohydrate molecules.

Get further explanation with Examzify DeepDiveBeta

A polysaccharide made of multiple sugars

Next Question

Report this question

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy