Which of the following is considered a simple sugar?

Glucose is classified as a simple sugar, also known as a monosaccharide. It is one of the most basic forms of carbohydrates and consists of a single sugar unit. Simple sugars like glucose are quickly absorbed into the bloodstream and serve as a rapid source of energy for the body.

In contrast, sucrose and lactose are classified as disaccharides, meaning they are composed of two monosaccharide units linked together. Sucrose is made up of glucose and fructose, while lactose is made up of glucose and galactose. Starches, on the other hand, are complex carbohydrates made up of many glucose units linked together, making them polysaccharides.

The classification of glucose as a monosaccharide highlights its fundamental role in metabolism and its essential function in providing energy, which is critical knowledge for an EMT dealing with patients' nutritional needs or conditions like hypoglycemia.