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