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EX#7 GLYCOSIDE (PCOG LAB)

Total questions: 25

Worksheet time: 6hrs 15mins

Name
Class
Date
1.

These are compounds that yield one or more sugars among the products of hydrolysis

a)

Glycosides

b)

Glucose

c)

Fructose

d)

Glycoronic acid

2.

Flavonoids are phenolic plant pigments generally containing (a)   nucleus

3.

Glycone classification of GLUCOSE

a)

Glucoronide

b)

Fructoside

c)

Glucoside

4.

Glycone classification of FRUCTOSE

a)

Glucoronide

b)

Fructoside

c)

Glucoside

5.

Glycone classification of GLUCORONIC ACID

a)

Glucoronide

b)

Fructoside

c)

Glucoside

6.

The glycosides can be classified by the (a)   , by the types of glycosidal linkage, and by the aglycone

7.

O-glycosides

a)

Carbon atom

b)

Thiol

c)

Amino acid

d)

Phenol

8.

N-glycosides

a)

Carbon atom

b)

Thiol

c)

Amino acid

d)

Phenol

9.

S-glycosides

a)

Carbon atom

b)

Thiol

c)

Amino acid

d)

Phenol

10.

C-glycosides

a)

Carbon atom

b)

Thiol

c)

Amino acid

d)

Phenol

11.

Scientific name of Lagundi

(a)  

12.

Family name of Lagundi

(a)  

13.

Lagundi's Organic Evaluation of Glycosidic Extract

a)

Color: reddish brown

b)

Odor: fruity odor

c)

Taste: sweet

d)

Apperance: syrupy

14.

TEST FOR FLAVONOIDS:

Test for leucoanthocyanin

(a)  

15.

TEST FOR FLAVONOIDS:

Test for y-benzopyrone nucleus. Reduction of magnesium metal, also used to detect the y-benzopyrone nucleus.

(a)  

16.

TEST FOR SAPONIN GLYCOSIDES:

Formed honeycomb

(a)  

17.

TEST FOR SAPONIN GLYCOSIDES:

For unsaturated sterols and triterpenes

(a)  

18.

TEST FOR CARDENOLIDES AND BIFADIENOLIDES:

test for 2-deoxy sugar

(a)  

19.

TEST FOR ANTHRAQUINONES:

+ Result of a Red coloration in the lower ammoniacal layer

a)

Borntrager test

b)

Modified Borntrager test

20.

TEST FOR ANTHRAQUINONES:

+ Result of a Pink color

a)

Borntrager test

b)

Modified Borntrager test

21.

+ result: Strong Red or Violet

a)

Bate Smith and Matcalf

b)

Wilstatter Cyanidin

c)

Liebermann Burchard

d)

Froth test

22.

+ result: Green coloration at the upper layer

a)

Bate Smith and Matcalf

b)

Wilstatter Cyanidin

c)

Liebermann Burchard

d)

Froth test

23.

+ result: Blue to Green, red, pink, purple, or violet

a)

Bate Smith and Matcalf

b)

Wilstatter Cyanidin

c)

Liebermann Burchard

d)

Froth test

24.

+ result: Reddish Brown color, which may trun Blue or Purple

a)

Keller Killiani

b)

Bornstrager test

c)

Modified Bornstrager

d)

Liebermann Burchard

25.

+ result: Reddish Brown color, which may trun Blue or Purple

a)

Keller Killiani

b)

Bornstrager test

c)

Modified Bornstrager

d)

Liebermann Burchard

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