lobeline

conhydrine

arecoline

Putrescine

nicotine

يارب🤍

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A.atropine

B.hyoscine

C.apoatropine

D.hyoscyamine

E.belladonine

A.tropine ester of dl-tropic acid

B.occurring in traces in solanaceous plants such as Atropa belladonna.

C.the optically active form of hyoscyamine.

D.readily hydrolyzes to racemic tropic acid and tropine.

E.decreases gastric juice and helps in peptic ulcer treatment

A.The chief sources are Datura stramonium.

B.Hyoscine occurs as volatile liquid.

C.It hydrolyzes with acid or alkali into (-)-tropic acid and scopine =scopoline

D.The mild hydrolysis with the enzyme yields (-)-tropic acid and scopine. It gives salts with HBr

A.obtained from Atropa belladonna, Solanaceae

A. it is an ester of tropine dl atropate

B. It is more stable than hyoscymine

C. Both pyrrolidine & piperidine ring systems can be recognized in the molecule.

D. Easly hydrolysed by Baryta water

E.It is less active than hyoscyamine

A.easly hydrolysed by Baryta water

A.The (-)-isomer of tropin tropate is hyoscyamine

B. the (+)-isomer of tropin tropate is not found in the plant

C. Hyoscyamine is more active than atropine.

D.The (±)-isomer of scopolamine is atrosine

E.Hyoscine is the (±)-isomer of tropine tropate

A. Hyoscine (scopolamine) is an epoxide of atropine & it is the (-)- isomer.

B. Both pyrrolidine & piperidine ring systems can be recognized in hyoscine molecule.

C. Over 200 tropane alkaloids have now been recorded. E

D. N-butyl bromide (buscopan) is a Semi synthetic derivative

E.piperidine ring in tropane alkaloids biosynthetically derived from lysine

A.SAM is involved in atropine biosynthesis

B.shikimate and transamination are essential in biosynthesis of tropic acid

C.scopolamine is a liquid alkaloid occurs in Datura stramonium

D.tropane is natural basic solanaceous alkaloid

E.Scopine is less stable thane oscine

A. Two parts of belladonna are official, the root & the leaf

B.It is called deadly night shade leaf

C. The root is richer than the leaf in alkaloids. The root contains 0.4% while the leaves 0.6%.

D. Contains (-) hyoscymine, and traces of atropine in fresh plant

E. Atropine is formed by racemization during the extraction process

A. The (±)-isomer of scopolamine is atrosine contains oscine base

B. Henbane is the dried leaves & flowering tops of Hyoscyamus niger F: Solanaceae.

‏C.Belladonna acts as a parasympathetic depressant which accounts for its use as a spasmolytic agent

‏D. Belladonna is used to control spasm of the of the gastrointestinal tract and urinary tract.

E. Belladonna reduces gastric acid secretion and increases GIT motility

A. Egyptian Henbane is the dried leaves & flowering tops of Hyoscyamus muticus,

B. Hyoscyamus muticus yield about 1.5% of total alkaloids consisting largely of hyoscyamine.

C. Hyoscyamus muticus contains hyoscyamine which could be used as anticolic for urinary tract

D. Hyoscyamus muticus contains hyoscyamine which could be used for atropine preparation

E. Henbane is indigenous to & cultivated in Egypt

A.Stramonium is the dried leaves & flowering tops of Datura stramonium, F: Solanaceae

B.Stramonium contains up to 0.4% of total alkaloids calculated as hyoscine

C.Stramonium is an anticholinergic having an action like hyoscyamus

A. Tropane alkaloids decrease all the secretions as sweat, saliva & milk

B. Tropane alkaloids are used as mydriatic & antispasmodic

C.Atropine is used as antidote in organophosphorus poisoning

D.Atropine is used as antidote in pilocarpine poisoning

E. Tropane alkaloids have parasympatholytic or cholinergic activities

A. Hyoscine or Scopolamine is mainly used as antiemetic

B.Hyoscine has parasympathomimetic and antispasmodic effects

C. Scopolamine has CNS depressant effect so it is sedative and hypnotic.

D. Scopolamine is used in treatment of motion sickness.

E. Hyoscine could be used as antispsmodic

A) False alkaloid

B) protoalkaloid

C) true alkaloid

Pseudoalkaloid

A)hyosacine and tropic acid

B)tropine and tropic acid

C)hyoscyamine and tropic acid

D)none above