AP EAMCET201920 Apr 2019Morning ShiftChemistryBiomoleculesActual
Identify the correct set of monosaccharides present in sucrose ((X) ), lactose ((Y) ) and maltose ((Z) ).
Options
- A( array |c|c|c|c| X & Y & Z array l glucose, fructose array & array l galactose, glucose array & array l gluco
- B( array |c|c|c|c| X & Y & Z array l glucose, fructose array & array l galactose, glucose array & array l gluco
- C( array |c|c|c|c| X & Y & Z array l glucose, glucose array & array l galactose, glucose array & array l glucos
- D( array |c|c|c|c| X & Y & Z array l galactose, glucose array & array l glucose, fructose array & array l gluco
Correct answer
B. ( array |c|c|c|c| X & Y & Z array l glucose, fructose array & array l galactose, glucose array & array l gluco
Step-by-step solution
((X) ) Sucrose on hydrolysis gives glucose and fructose. i.e. Sucrose ( ) glucose + fructose ((Y) ) Lactose on hydrolysis gives D-glucose and D-galactose. i.e. Lactose ( ) D-glucose + D-galactose ((Z) ) Maltose on hydrolysis gives 2 units of glucose. i.e. Maltose ( ) glucose + glucose Thus, correct option is (b).