Nicotine is biosynthesized from
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36%
A).ornithine
10%
B).aspartic acid
2%
C) glyceraldehyde.
48%
D) all above
5%
E) none above
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Lobeline used by the Native Americans for
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3%
A)asthma
2%
B)chronic bronchistis
49%
C) respiratory stimulant
45%
D)all above
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Upon reduction, the tertiary base pyridine is converted into the
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13%
A. Pyrolidine
79%
B. Piperidine
2%
C. Ornithine
6%
D. Nicotine
Lobelia plant is
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5%
A)drived bark &tops
12%
B)drived roots&tops
74%
C)drived leaves &tops
9%
D)none above
All the followings are correct for nicotine except: -
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6%
A.Obtained from the leaves of Nicotiana tobacco fam Solanaceae (Major)
6%
B.Liquid colorless alkaloid
5%
C.Gangelioleptic with a cardiovascular effect and increases blood pressure
56%
D.Biosynthetically derived from aspartic acid and lysine
28%
E. It is not carcinogenic
nicotine is derivatives of
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15%
A) nicotinic acid
5%
B) pyridine
3%
C) piperidine
3%
D) pyrolidine
74%
E) both b&d
_________ is the key intermediate in biosynthesis of nicotine
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18%
A. Ornithine
2%
B. Nicotinic acid
68%
C. N- methylpyrrolinium ion
12%
D. N-methylputrescine
nicotine has pronounced
effects on the cardiovascular system, where peripheral vasoconstriction, atrial tachycardia ............. are observed.
effects on the cardiovascular system, where peripheral vasoconstriction, atrial tachycardia ............. are observed.
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5%
A) an increase diastolic blood pressure
3%
B)an increase systolic blood pressure
9%
C)decrease in both systolic & diastolic blood pressure
83%
D)an increase in both systolic & diastolic blood pressure
The important alkaloids in pyridine and piperidine
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14%
A)Nicotine, morphine, Arecoline, Lobeline
62%
B) Nicotine, Coniine, Arecoline, Lobeline
14%
C)Nicotine, atropine, Arecoline, Lobeline
11%
D)Nicotine, ergotamine, Arecoline, Lobeline
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The scientific name for areca is
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12%
A)areca nut
21%
B)palmaceae
65%
C)areca catechu
2%
D)laliaceae
The important alkaloids of areca
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31%
A)arecoline
2%
B)nicotine
2%
C)arecaidine
65%
D)both a&c
Root bark of Punica granatum contains piperidine alkaloids, one of which is solid
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32%
A. pelletierine
48%
B. pseudopelletierine
8%
C. methylpelletierine
6%
D. isopelletierine
5%
E. methyliso pelletierine
the alkaloid excract from poison hemlock is
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12%
lobeline
52%
conhydrine
16%
arecoline
14%
Putrescine
6%
nicotine
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Tropine l-tropate is
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35%
A.atropine
9%
B.hyoscine
6%
C.apoatropine
47%
D.hyoscyamine
2%
E.belladonine
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All the followings describe Atropine except
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25%
A.tropine ester of dl-tropic acid
17%
B.occurring in traces in solanaceous plants such as Atropa belladonna.
33%
C.the optically active form of hyoscyamine.
8%
D.readily hydrolyzes to racemic tropic acid and tropine.
17%
E.decreases gastric juice and helps in peptic ulcer treatment