Question

Stachyose is a

• A. monosaccharide
• B. disaccharide
• C. trisaccharide
• D. tetrasaccharide

Answer 1

Answer: (D)

tetrasaccharide

Answer 2

Stachyose is a tetrasaccharide consisting of two $\alpha$ -D-galactose units, one $\alpha$ -D-glucose unit and one $\beta$ -D-fructose unit
sequentially linked as gaI $(\alpha 1 \rightarrow 6)$ gal $(\alpha 1 \rightarrow 6)$ glc $(\alpha 1 \rightarrow 2 \beta)$ fru. It is naturally found in numerous vegetables and plants.