Laboratory

1.     A disaccharide that contains two glucose molecules

• Lactose

• Maltose

• Sucrose

• Galactose

2. 2. A sugar with aldehyde

• Aldehyde

• Ketone

• Aldose

• Ketose

3. 3.  A sugar which contains one sugar unit.

• Polysaccharide

• Oligosaccharide

• Disaccharide

• Monosaccharide

4.    A type of sugar which contains more than 10  sugar units.

• Monosaccharide

• Disaccharide

• Oligosaccharide

• Polysaccharide

5. 5.    The empirical formula of a triose.

• CH2O

• C2H4O2

• C3H6O3

• C4H8O4

6. 6. What is the reagent for testing the presence of starch?

• Benedict's

• Oil

• Lugol's

• Biuret

7. 7. The result of glucose  solution with Fehling’s.

• Brick-red solution

• Colorless

• White precipitate

• No Reaction

9. 8. What reagent use to detect the presence of protein?

• Benedict's

• Lugols

• Biuret

• DIPP

9. 9. What are the reducing sugars in Fehling's and Benedict's test?

• Fructose

• Starch

• Glycogen

• Lactose

10. 10. What is the positive result of benedict's test?

• Brick-red soultion

• Dark violet solution

• Cloudy white

• Colorless