Which of the following is NOT an example of Liquid Alkaloid?
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16%
A. Sparteine
7%
B.Coniine
8%
C. Nicotine
68%
D.Atropine
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Another name for Potassium mercuric iodide solution used for alkaloid chemical test?
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13%
A/Wagners Reagent
77%
B. Mayer's Reagent
6%
C.Hager's Reagent
5%
D.Sonnenschein Reagent
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Which of the following is CORRECT for Murexide test?
Anonymous Quiz
79%
A. Caffeine + Hcl + KCI3
12%
B.Caffeine + H2SO4 + KCI3
6%
C.Caffeine + HNO3 + Br2
3%
D.Caffine + H2 + N2
Ipecac and Aconite are found in?
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26%
A.Bark
56%
B. Root
11%
C.Aerial part of plant
7%
D.Unripe capsule
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Nuxvomica and areca extracted from?
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9%
A.Roots
9%
B.Bark
77%
C.Seed
5%
D.Flowering buds
The example of pseudoalkaloid:
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87%
a) Caffeine
5%
b) Hygrine
4%
c) Arecoline
4%
d) Lobeline
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Alkaloids found in fungi is
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2%
A.Cinchona
2%
B.Ipecac
54%
C.Ergot
3%
D.Citrina
39%
E.Both c&d
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The name of the alkaloids are obtained
from the generic name of the plant yielding them such as
from the generic name of the plant yielding them such as
Anonymous Quiz
20%
A. (cocaine, belladonnine)
72%
B.hydrastine, atropine
6%
C.ergotamine , atropine
2%
D.pelletierine
the main role of alkaloids in plants is toxicity against predators and pathogens.
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90%
True
10%
False
Some alkaloids can be extremely harmful to mammals, which is the case of the
intoxication.
steroidal alkaloid cyclopamine in lambs, identified as the compound
intoxication.
steroidal alkaloid cyclopamine in lambs, identified as the compound
Anonymous Quiz
72%
A.in Veratrum californicum (Liliaceae) responsible for teratogen effects
11%
B.in Veratrum californicum (Leguminsae) responsible for teratogen effects
8%
C.in Veratrum californicum (Rubiaceae) responsible for teratogen effects
9%
None of them
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The alkaloids have action analgesics and narcotics such as
Anonymous Quiz
7%
A/Atropine
85%
B/ morphine & codeine
1%
C/homatropine
7%
All of them
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The alkaloide has an action is the hypertension such as
Anonymous Quiz
58%
A/ ephedrine
21%
B/ reserpine
20%
C/ both a&b
2%
D/none of them
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The alakloid has an action is cause hypotension such as
Anonymous Quiz
9%
A/ atropine & homatropine
5%
B. Morphine
85%
C.reserpine
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colored alkaloids are relatively rare, they are not unknown for example
Anonymous Quiz
10%
A. berberine is Red and the salts of sanguinarine are copper-yellow.
12%
B.berberine for example is yellow and the salts of sanguinarine are copper-green.
74%
C. berberine for example is yellow and the salts of sanguinarine are copper-red.
3%
D. None of them
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the alkaloids are converted into their salts by
Anonymous Quiz
26%
A. Neutral mineral acids
65%
B. aqueous mineral acids,
4%
C. Unaqueous mineral acids
5%
None
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Quaternary ammonium compouds such as tubocurarine chloride or muscarine chloride have
four organic groups covalently bonded to nitrogen,it is not affected by hydroxide ion
four organic groups covalently bonded to nitrogen,it is not affected by hydroxide ion
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20%
A.because have unpair electrons
13%
B.because have proton give up
63%
C. because having no proton to give up
4%
D. None of them
the most part the alkaloids are insoluble or sparingly so in water but the salts formed upon reacting with acids are usually .
Anonymous Quiz
29%
A.soluble
54%
B.freely soluble
12%
C.slightly soluble
5%
D.insoluble
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The free alkaloids are usually insoluble in ether or chloroform or other relatively nonpolar, immiscible solvents in which, however, the alkaloidal salts are soluble
Anonymous Quiz
37%
True
63%
False
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