Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Consider the following statements and select the correct answer using the code. (1) Lactose is made up of two glucose units (2) Cutin is a fatty acid polymer. (3) Raffinose is a polysaccharide (4) Maltose is a reducing sugarA) 1, 2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: C
Solution :
Lactose is a disaccharide present in the milk of mammals. It is made up of one glucose and one galactose unit joined by \[\text{ }\!\!\beta\!\!\text{ -}\,\text{1,}\,\text{4-}\] glycosidic linkage. In plants, the epidermal cells secrete a waxy substance called cutin (a fatty acid polymer), which forms a layer of variable thickness called cuticle within and on the outer surface of cell wall. Raffinose is an oligosaccharide (infact trisaccharide). It consists of three monosaccharide units namely D-glucose, D-fructose and D-galactose. Maltose is a reducing sugar found in germinating seeds and malt.
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