Questions and Answers | Latest
Version | 2025/2026 | Correct & Verified
Which secondary metabolite class includes morphine, quinine, and atropine?
a. Glycosides
✔✔ b. Alkaloids
c. Terpenes
d. Flavonoids
Which plant is the main source of cardiac glycosides used in heart failure therapy?
a. Rauwolfia serpentina
✔✔ b. Digitalis purpurea
c. Ephedra sinica
d. Papaver somniferum
What is the main flavonoid present in Citrus fruits?
a. Gingerol
✔✔ b. Hesperidin
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,c. Menthol
d. Atropine
Which plant-derived drug is used as an antitussive?
✔✔ a. Codeine
b. Quinine
c. Atropine
d. Ephedrine
What is the major source of tannins used in leather tanning?
a. Eucalyptus leaves
✔✔ b. Quercus bark
c. Piper methysticum root
d. Zingiber rhizome
The alkaloid scopolamine is obtained from which plant?
a. Papaver somniferum
✔✔ b. Hyoscyamus niger
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,c. Digitalis lanata
d. Rauwolfia serpentina
Which is the main bitter principle of Gentian root?
a. Rutin
b. Quercetin
✔✔ c. Gentiopicroside
d. Aloin
Which fixed oil is obtained from Linum usitatissimum seeds?
a. Castor oil
b. Olive oil
✔✔ c. Linseed oil
d. Palm oil
What is the active resinous principle in Jalap root?
✔✔ a. Convolvulin
b. Reserpine
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, c. Rutin
d. Papain
Which carbohydrate polymer is obtained from Red algae?
a. Starch
b. Inulin
✔✔ c. Agar
d. Gum acacia
The purgative drug "Croton oil" is derived from which plant?
✔✔ a. Croton tiglium
b. Ricinus communis
c. Aloe vera
d. Cassia senna
What is the main pharmacological action of Reserpine from Rauwolfia serpentina?
✔✔ a. Antihypertensive
b. Antimalarial
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