問題一覧
1
Historically, tannin containing drugs are related to their tanning property i.e. their ability to transform fresh hides into imputrescible leather
Tannins.
2
they do not crystallize
Tannins.
3
In goldbeaters test the positive in tannins test mean its either
Hydrolyzable tannins, Non hydrolyzable tannins.
4
Upon addition of acid (HCl or H2SO4), produce sugar and phenolic acid
Hydrolysable tannin.
5
These are esters of sugars and phenolic acid molecules
Hydrolysable tannins.
6
What is the example of hydrolysable tannins.
Gallic acid, Ellagic acid.
7
Hydrolysable tannins on heating with hydrochloric or sulphuric acids yield?
Gallic acid, Ellagic acid.
8
Examples of plant sources containing hydrolysable tannins
Terminalia chebula Combretaceae., Terminalia belerica Combretaceae, Hamamelidaceae
9
Terminalia belerica Combretaceae
Bahera.
10
Hamamelidaceae
Witch hazel.
11
Terminalia chebula Combretaceae.
Myrobalan.
12
What are the examples of Ellagitannins.
Pomegranate , Eucalyptus
13
On dry distillation the hydrolyzable tannin(heating process which produces gaseous product), are converted into?
PYROGALLOL derivatives.
14
The hydrolysable tannins are soluble in water and their solution produces blue color with?
Ferric chloride.
15
What is the Biological source of Witch hazel/Hazel nut/ Snapping nut
Hamamelis virginiana
16
What is the Family name of Hamamelis virginiana
Hamamelidaceae
17
What is the uses of Witch hazel/Hazel nut/ Snapping nut
Astringent , Hemorrhoidal products , Treating insect bites and sting.
18
Celeteque Toner is present in?
Witch hazel extract.
19
Biological source of Nutgalls
Quercus infectoria
20
Quercus infectoria Family name?
Fagaceae
21
The Principal Constituent Is Tannic Acid, Which Is Found To The Extent Of 50-70% (T/F)
True.
22
The Drug Also Contains Gallic Acid, 2-4% Ellagic Acid, Starch, Resin.
Nutgalls.
23
Uses of nutgall
Tanning, Manufacturing ink , Astringent.
24
Upon addition of acids and enzymes, the more it tends to polymerize
Condensed tannins.
25
Proanthocyanidins (more simpler unit)
Condensed tannins.
26
Most often consist 4-8 or 4-6 units of flavan-3-ol
Condensed tannins.
27
occur due to polymerization (condensation) reactions between flavonoids.
Condensed tannins.
28
How many polymer may include in condensed tannins
50 monomer units.
29
On treatment with acids or enzymes condensed tannins are converted into red insoluble compounds known a
PHLOBAPHENES
30
give the characteristic red color to many drugs such as red cinnamon bark.
PHLOBAPHENES
31
On a dru distillation of condensed tannis it yield ?
Catechol derivative.
32
When a match stick is dipped in tannin extract followed by HI & warmed near a flame it turns pink in color
Match stick test.
33
The wood of the matchstick has lignin. Upon hydrolysis of the tannins due to HCI, phloroglucinol is formed which reacts with the lignin of the wood to produce the pink color
Match stick test.
34
What us the biological source of black catechu
Acacia catechu / Accacia chundra.
35
Continuous use of Areca catechu is discouraged because of studies that say it promotes ?
Oral cancer.
36
What is the uses of black catechu
Astringent , Ulcer , diarrhea
37
They are compounds of lower molecular weight than true tannins and they do not respond to the goldbeater's skin test
Pseudotannins.
38
Gallic acid
Rhubarb
39
Catechins
Guarna, Cocoa
40
Chlorohenic
Mate, Coffee
41
Ipecacuanha
Ipacecuanha.
42
Goldbeater's skin is a membrane prepared from the intestine of the ox and behaves similarly to an untanned hide. (T/F)
True.
43
General test for true tannins: Ferric Chloride Test (T/F)
True.
44
Determination whether the true tannins are hydrolysable or non hydrolysable tannin
Ferric chloride test.
45
May be used as an antidote for poisoning, because they may precipitate poisons, and decrease absorption of poisons in the GIT
Tannins.
46
Tannic acid is usually mixed Magnesium oxide, and activated charcoa
Universal antidote.
47
Acts as preservatives because of its antiseptic qualities.
Tannins.
48
Medicinally speaking tannins are
Astringent , Hemostatic , Heavy metal antidote., Anticancer
49
In laboratory it is use reagent for detection of proteins, alkaloids and heavy metals because of their precipitating properties
Tannins.
50
Tannic acid is not a single homogenous compound but is a mixture of esters of gallic acid with glucose whose extract composition varies according to its source. (T/F)
True.
51
occurs as amorphous powder, glistening scales, or spongy masses that are light brown to yellowish white
Tannic acid.
52
Hindi nac-crystallize ang tannins, kahit isubject pa sa excipient dryness. lagi siyang syrup-like (T/F)
True.
53
Rhus chinensis
Anacardiaceae
54
Melaphis chinensis
Pemphigidae
55
Galls on Rhus chinensis will form due to stings of these (counterpart of Quercus infectoria)
Aphids.
56
An dimeric structure are exactly the same structure (T/F)
True.
57
Reagent and result in Goldbetears test
20% HCI & Ferrous sulfate , Black / Brown
58
Results and Reagent used in. Gelatin test
Gelatin - Salt solution , Fleshy precipitate
59
Results and Reagent used in Phenazone test
Sodium phosphate & Phenazone reagent , Precipitate
60
Results and reagent used in Matchstick Test
HCI, Red/Pink
61
Results and Reagent used in Chlorogenuc test
Chlorogenic acid & Ammonia, Green color
62
Results and Reagent used in Vanillin HCI Test
Vanillin HCI reagent, Red/Pink