Here's why:

* Monosaccharides are the simplest form of carbohydrates. They are single sugar units and cannot be broken down into simpler sugars.

* Glucose is a six-carbon sugar that is the primary source of energy for the human body.

* Fructose is a six-carbon sugar found in fruits and honey.

* Ribose is a five-carbon sugar that is a component of RNA (ribonucleic acid).