Alkaloids | Pharmacognosy | GPAT Mock Test

Welcome to the GPAT Mock Test on Alkaloids from Pharmacognosy! This quiz is expertly designed for B.Pharma graduates preparing for the GPAT examination. It features 25 challenging multiple-choice questions covering a wide range of essential subtopics, including the nature and classification of alkaloids, their biosynthesis pathways, and detailed pharmacognosy of key alkaloid-containing drugs like Belladonna, Opium, Cinchona, Ergot, and Vinca. Test your knowledge on sources, chemical constituents, adulterants, and therapeutic uses. After submitting your answers, you will receive your score instantly, with a clear breakdown of correct and incorrect responses. For your revision, you can also download all the questions along with their correct answers in a convenient PDF format. Good luck!

1. The precursor amino acid for the biosynthesis of tropane alkaloids such as atropine and hyoscyamine is:

2. Quinine and Quinidine, obtained from Cinchona bark, are biosynthesized from which amino acid?

3. The characteristic red color with Vitali-Morin test is given by:

4. Vincristine and Vinblastine, used in cancer chemotherapy, are obtained from which plant?

5. Which of the following alkaloids is classified as a proto-alkaloid or amino-alkaloid?

6. The Murexide test is a specific identification test for which class of alkaloids?

7. Papaver somniferum is the biological source of Opium. The alkaloids in Opium are biosynthesized from:

8. Nux vomica seeds, containing strychnine and brucine, are often adulterated with seeds of:

9. Reserpine, an antihypertensive and antipsychotic alkaloid, is obtained from the roots of:

10. Ergot alkaloids are produced by which fungus that infects rye and other cereals?

11. Vasicine, an alkaloid from Adhatoda vasica (Vasaka), is clinically used as a/an:

12. Colchicine, obtained from Colchicum autumnale, is used in the treatment of:

13. Which of the following is NOT a true alkaloid?

14. Pilocarpine, an alkaloid from Pilocarpus jaborandi, is a parasympathomimetic agent used to treat:

15. The chief active constituent of Areca nut (Areca catechu) is:

16. Duboisia myoporoides is a commercial source for the production of:

17. Aconitine, a highly toxic alkaloid from Aconitum napellus, is classified as a:

18. Emetine, used as an emetic and amoebicide, is obtained from the rhizomes and roots of:

19. Holarrhena antidysenterica (Kurchi) bark contains the steroidal alkaloid conessine, which is primarily used for treating:

20. The Thalleioquin test is a specific color reaction for:

21. Cocaine, a potent CNS stimulant and local anesthetic, is obtained from the leaves of:

22. Which part of the Belladonna plant (Atropa belladonna) has the highest concentration of alkaloids?

23. The family of Hyoscyamus niger and Datura stramonium is:

24. Solasodine, a steroidal alkaloid used as a precursor for steroid synthesis, is obtained from:

25. Van Urk’s reagent is used for the identification of which class of alkaloids?