Pharmacognosy Practice test #1 | MCQs for Pharmacy Exams

📅 July 11, 202172,387 views | ✍️ Pharmacy Exams

Pharmacognosy is a subject related to the study of natural drugs and its constituents. this subject is included in D. Pharma and B. Pharma curriculum.

This practice test has 30 objective questions (MCQs) from Pharmacognosy. This practice test is helpful for D. Pharma (1st year), B. Pharma and Pharmacists preparing for competitive exams. Attempt this test for basic revision of important topics in pharmacognosy.

Q2. The source of Indian acacia is-

Acacia arabica Gelidium amansii Astragalus gummifur Sterculia urens

Acacia contains gallic acid, catechin, chlorogenic acid and gallolyated falvan-3,4-diole.

Q3. Ashwagandha is common name for-

Wthania somniferum Holarrhena antidysentrica Bacopa moneira Centella asiatica

Withania somnifera, Indian ginseng is a plant in Solanaceae or nightshade family.

Q4. Quinine and quinidine is differ in-

Chemical structure solubility In rotating the plane of polarized light none of the above

Quinine is levo isomer while quinidine is dextro isomer.

Q6. Which one of these is called a Indian tobacco?

Lobelia Nicotina Cocca leaves none of the above

Lobelia is also called Indian Tobacco is used as herbal remedy for respiratory condition such as asthma, bronchitis.

Q7. Sarpagandha is related to-

Rauwolfia Arjuna Nux-vomica Physostigma

Rauwolfia serpentina, commonly known as Indian Snak root or sarpagandha, contain ajmaline, reserpine extra.

Q8. Deadly night shade plant is related to-

Hyoscyamus niger Datura stramonium Belladonna none of the above

Atropa belladonna, commonly known as deadly night shade, is a perennial herbaceous plants in the family Solanaceae.

Q9. Which one of these reagent is used to indicate the presence of emetine?

Picric acid Potassium chlorate potassium bismuth iodide Iodine in pottassium iodide solution

Emetine is shaken with water and small amount of HCL. To the filtrate pottasium chlorate is added. It goves a yellow colour changing to red.

Q11. Which one of these alkaloids is volatile in nature?

Narcotine Papaverine Nicotine Thebaine

Due to volatile nature of narcotine it is extracted out by steam distillation process.

Q12. Keller-Killiani test is specified for-

Aglycon part of digitalis glycosides Glycon part of Digitalis glycosides Both Glycon and Aglycon part none of the above

Cardiac glycoside + CH3COOH + H2SO4 +FeCl3 → brown colour.

Q13. which one of these is adulterant of digitalis leaves?

Verbasscum thapsus Digitalis lutea Digitalis thapsi none of the above

The leaves of Verbascum thapsus belonging to the family Scrophulareae are usually mixed with digitalis leaves which may be identified and distinguised by the abundant presence of huge woody and branched candelabra trichomes. Pemula vulgaris is another adultrant.

Q15. Amylum is synonym for-

starch cellulose sodium alginate isaphgol mucilage

The word 'starch' means to stiffen. The 'amylum' is dried from greek greek word 'amylon' means not ground at a mill.

Q17. Urginea maritimma is used as-

Purgative Astringent Cardiotonic Anti-infective

due to presence of Scillarene B, it is used as cardiotonic. It also has diuretic and expectorant actions.

Q19. Camphor is obtained from which plant?

Eucalyptus globulus Cinnammonnum camphora Chenopodium ambrosoids none of the above

Camphor is obtained from the wood of Camphor laurel (Cinnammonnum camphora).

Q20. Cymbopogon citratus belongs to the family-

Graminae Lauraceae Myrtaceae Rubiaceae

Cymbopogon citratus, commony known as lemon grass, is tropical plants from southeast Asia. It belongs to the family Graminae or poaceae.

Q21. Terpentine oil contains mainly-

citral α-pinene Limonene Phellandrene

Terpentine oil contains mainly terpenes, alpha-pinene and beta-pinene with lesser amounts of camphene dipentene and terpinolene.

Q23. Which part of the Dill fruit contains oil?

Entire fruit Endosperm Vittae Mericarp

Dill fruits are oval compressed, winged about one tenth wide, with three longitudinal ridges on the bark and three dark lines or oil cells (vittae) between them and two on the flat surface.

Q24. Pale and black catechu are differentiated on the basis of presence/ absence of-

Catechin Quercetin Gambier fluorecin Gums

Alcoholic extract of the drug when treated with NaOH and light petrolium ether, Pale catechu shows green fluorescence due to the presence of Gambier fluorecin.

Q25. Triterpenoid saponins are present in-

Arjuna Bark Black catechu Bahera none of the above

The terpenoidal saponins are arjunic acid, arjunolic acid, and arjugenins.

Q27. Turmeric possess saffron colour due to presence of-

Curcumin Turmerone Curcumens Phellandrene

Turmeric contains group of compounds called curcuminoids, which includes curcumin (diferucoylmehane), dimethoxycurcumin, and bisdimethoxycurcumin. Curcumin impart saffron colour to it.

Q28. Free cinnamic acid is present in-

Colophony Storax Asafoetida Balsam of tolu

The balsam contains a fairly large amount of benzyl and cinnamylester of benzoic acid and cinnamic acid.

Q30. Silk fibres obtained from-

seeds of goissypium Cacoons of Bombyx mori Synthetic source Corchorus cupsularin

Silk is natural protein fiber, some forms of which can be wooven into textiles. The best known type of silk is obtained from cocoons of larvae of the mulberry silkworm, Bombyx mori.