Answer:
The correct answer is (3) Glucosamine.
Explanation:
1) Inulin is a complex polysaccharide composed of fructose units. It is found in many plants, such as chicory, onions, and bananas.
2) Chitin is a complex polysaccharide composed of N-acetylglucosamine units. It is a major structural component of the exoskeletons of arthropods, such as insects, crustaceans, and fungi.
3) Glucosamine is not a complex polysaccharide. It is a monosaccharide, which is the basic building block of carbohydrates. Glucosamine is often used as a dietary supplement for joint health.
4) N-acetyl galactosamine is a component of complex polysaccharides, such as those found in the extracellular matrix of connective tissues.
Therefore, out of the given options, (3) Glucosamine is the only one that is not a complex polysaccharide.
