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Pharmacognosy MCQs

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Pharmacognosy MCQs

Pharmacognosy is the study of:
- a) Chemical synthesis of drugs
- b) The biological origin, nature, and properties of drugs
- c) Drug formulation techniques
- d) Pharmacokinetics and pharmacodynamics
  Answer: b) The biological origin, nature, and properties of drugs
Which of the following is an example of an alkaloid-containing plant?
- a) Digitalis
- b) Opium poppy
- c) Senna
- d) Aloe
  Answer: b) Opium poppy
Which of the following is a glycoside used in the treatment of heart conditions?
- a) Atropine
- b) Quinine
- c) Digoxin
- d) Morphine
  Answer: c) Digoxin
The primary active constituent of the plant Digitalis purpurea is:
- a) Quinine
- b) Strychnine
- c) Digoxin
- d) Ephedrine
  Answer: c) Digoxin
Which plant is the primary source of the alkaloid Quinine?
- a) Cinchona
- b) Rauwolfia
- c) Belladonna
- d) Ephedra
  Answer: a) Cinchona
Which of the following is a resin obtained from the plant Cannabis sativa?
- a) Opium
- b) Hashish
- c) Codeine
- d) Cocaine
  Answer: b) Hashish
The term “crude drug” refers to:
- a) Chemically synthesized drugs
- b) Drugs in their natural form
- c) Drugs that have been partially purified
- d) Drugs that are contaminated
  Answer: b) Drugs in their natural form
Which of the following is a source of the glycoside Sennoside?
- a) Aloe vera
- b) Senna
- c) Digitalis
- d) Belladonna
  Answer: b) Senna
What is the primary use of the herb Ginseng?
- a) Laxative
- b) Tonic
- c) Sedative
- d) Antipyretic
  Answer: b) Tonic
Which of the following is a method of drug extraction that involves soaking the plant material in alcohol or water?
- a) Percolation
- b) Infusion
- c) Maceration
- d) Decoction
  Answer: c) Maceration
Which of the following plants is a source of the alkaloid Atropine?
- a) Digitalis
- b) Belladonna
- c) Cinchona
- d) Ephedra
  Answer: b) Belladonna
The active constituents of the plant Ephedra are primarily used as:
- a) Analgesics
- b) Antihypertensives
- c) Bronchodilators
- d) Antipyretics
  Answer: c) Bronchodilators
Which of the following is a flavonoid-containing plant?
- a) Ginkgo biloba
- b) Opium poppy
- c) Rauwolfia
- d) Ephedra
  Answer: a) Ginkgo biloba
Which of the following is a commonly used method for the qualitative analysis of alkaloids?
- a) Dragendorff’s test
- b) Molisch’s test
- c) Benedict’s test
- d) Salkowski’s test
  Answer: a) Dragendorff’s test
Which of the following is a carbohydrate-containing drug used as a demulcent?
- a) Acacia
- b) Cinchona
- c) Digitalis
- d) Senna
  Answer: a) Acacia
Which of the following is a source of caffeine?
- a) Tea leaves
- b) Belladonna
- c) Digitalis
- d) Cinchona
  Answer: a) Tea leaves
Which of the following is used as an expectorant and is obtained from the plant Glycyrrhiza glabra?
- a) Sennosides
- b) Morphine
- c) Quinine
- d) Glycyrrhizin
  Answer: d) Glycyrrhizin
Which of the following is an essential oil obtained from Eucalyptus?
- a) Menthol
- b) Camphor
- c) Eucalyptol
- d) Thymol
  Answer: c) Eucalyptol
Which of the following is a resin obtained from the plant Boswellia serrata?
- a) Asafoetida
- b) Myrrh
- c) Frankincense
- d) Gum Arabic
  Answer: c) Frankincense
The plant source of the antimalarial drug Artemisinin is:
- a) Cinchona
- b) Artemisia annua
- c) Belladonna
- d) Digitalis
  Answer: b) Artemisia annua
Which of the following is a cardiac glycoside found in the plant Strophanthus?
- a) Digoxin
- b) Quinine
- c) Strophanthin
- d) Morphine
  Answer: c) Strophanthin
Which plant is the primary source of the alkaloid Reserpine?
- a) Cinchona
- b) Rauwolfia
- c) Belladonna
- d) Ephedra
  Answer: b) Rauwolfia
Which of the following is a tannin-containing drug used as an astringent?
- a) Acacia
- b) Quinine
- c) Catechu
- d) Digitalis
  Answer: c) Catechu
Which of the following is a volatile oil obtained from the plant Mentha piperita?
- a) Camphor
- b) Menthol
- c) Eucalyptol
- d) Thymol
  Answer: b) Menthol
Which of the following is a mucilage-containing drug used in the treatment of diarrhea?
- a) Isapgol
- b) Aloe vera
- c) Digitalis
- d) Cinchona
  Answer: a) Isapgol
Which of the following plants is used as a source of the dye Henna?
- a) Lawsonia inermis
- b) Belladonna
- c) Ephedra
- d) Senna
  Answer: a) Lawsonia inermis
Which of the following is an example of a drug obtained from animal sources?
- a) Insulin
- b) Quinine
- c) Sennoside
- d) Digoxin
  Answer: a) Insulin
The term “adulteration” in pharmacognosy refers to:
- a) Mixing of different drugs
- b) The use of inferior quality substances
- c) Purification of drugs
- d) Standardization of drugs
  Answer: b) The use of inferior quality substances
Which of the following is a source of the alkaloid Nicotine?
- a) Tobacco
- b) Opium poppy
- c) Cinchona
- d) Digitalis
  Answer: a) Tobacco
Which of the following is a saponin-containing drug used as an expectorant?
- a) Liquorice
- b) Quinine
- c) Ephedra
- d) Digitalis
  Answer: a) Liquorice
Which of the following plants is used as a source of the gum Tragacanth?
- a) Astragalus
- b) Acacia
- c) Ephedra
- d) Senna
  Answer: a) Astragalus
Which of the following is a natural source of the colorant Annatto?
- a) Bixa orellana
- b) Senna
- c) Digitalis
- d) Aloe vera
  Answer: a) Bixa orellana
Which of the following is a purgative obtained from the plant Aloe vera?
- a) Aloin
- b) Quinine
- c) Morphine
- d) Digoxin
  Answer: a) Aloin
Which of the following is a method of extraction that involves the use of steam?
- a) Distillation
- b) Percolation
- c) Maceration
- d) Decoction
  Answer: a) Distillation
Which of the following is an alkaloid used in the treatment of hypertension?
- a) Reserpine
- b) Quinine
- c) Morphine
- d) Strychnine
  Answer: a) Reserpine
Which of the following is a plant hormone that promotes cell division?
- a) Cytokinin
- b) Auxin
- c) Gibberellin
- d) Ethylene
  Answer: a) Cytokinin
Which of the following is used as an antidiabetic drug derived from plant sources?
- a) Metformin
- b) Insulin
- c) Ginseng
- d) Ephedrine
  Answer: c) Ginseng
Which of the following is a polysaccharide used as a dietary fiber?
- a) Pectin
- b) Sennoside
- c) Morphine
- d) Quinine
  Answer: a) Pectin
Which of the following is a volatile oil obtained from the plant Clove?
- a) Eugenol
- b) Menthol
- c) Camphor
- d) Thymol
  Answer: a) Eugenol
Which of the following is a natural sweetener obtained from the plant Stevia rebaudiana?
- a) Stevioside
- b) Glucose
- c) Sucrose
- d) Fructose
  Answer: a) Stevioside
Which of the following is an alkaloid used as a local anesthetic?
- a) Cocaine
- b) Morphine
- c) Quinine
- d) Atropine
  Answer: a) Cocaine
Which of the following is a plant used in the treatment of burns and wounds?
- a) Aloe vera
- b) Cinchona
- c) Digitalis
- d) Belladonna
  Answer: a) Aloe vera
Which of the following is a carotenoid pigment responsible for the orange color in carrots?
- a) Beta-carotene
- b) Chlorophyll
- c) Lycopene
- d) Anthocyanin
  Answer: a) Beta-carotene
Which of the following is a source of the steroidal glycosides used in the treatment of congestive heart failure?
- a) Digitalis
- b) Aloe vera
- c) Belladonna
- d) Cinchona
  Answer: a) Digitalis
Which of the following is a natural product used as a flavoring agent and obtained from Vanilla planifolia?
- a) Vanillin
- b) Caffeine
- c) Quinine
- d) Morphine
  Answer: a) Vanillin
Which of the following is a bitter-tasting compound found in hops?
- a) Humulone
- b) Quinine
- c) Strychnine
- d) Reserpine
  Answer: a) Humulone
Which of the following is a gum obtained from the plant Sterculia urens?
- a) Karaya gum
- b) Tragacanth
- c) Gum Arabic
- d) Xanthan gum
  Answer: a) Karaya gum
Which of the following is a drug obtained from the plant Podophyllum peltatum?
- a) Podophyllotoxin
- b) Digoxin
- c) Morphine
- d) Quinine
  Answer: a) Podophyllotoxin
Which of the following is an alkaloid used in the treatment of asthma and derived from the plant Ephedra?
- a) Ephedrine
- b) Quinine
- c) Atropine
- d) Reserpine
  Answer: a) Ephedrine
Which of the following is a natural product used as a thickening agent in cosmetics and derived from the plant Xanthan gum?
- a) Xanthan gum
- b) Agar
- c) Gelatin
- d) Pectin
  Answer: a) Xanthan gum
Which of the following is a source of the alkaloid Strychnine?
- a) Strychnos nux-vomica
- b) Rauwolfia serpentina
- c) Digitalis purpurea
- d) Papaver somniferum
  Answer: a) Strychnos nux-vomica