Pharmacognosy MCQs with Answers

Pharmacognosy MCQs

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Note: Answer keys are given at the end of the MCQs.

MCQ # 01

All the below-given compounds are alkaloids. Vitali-Morin test is used for the identification of which alkaloid?
a- pilocarpine
b- morphine
c- atropine
d- reserpine
e- papaverine

MCQ # 02

Which among the following is NOT an opium alkaloid?
a- cocaine
b- morphine
c- papaverine
d- noscapine
e- thebaine

MCQ # 03

Alkaloids are given against their pharmacological activities. Identify the INCORRECT match?

a- ephedrine: antiasthma
b- quinidine: vasodilatory
c- galantamine: cholinomimetic
d- quinine: antimalarial 
e- nicotine: anxiolytic

MCQ # 04

One of the given statements is INCORRECT about alkaloids. Which one?

a- Pseudoalkaloids do not originate from amino acids
b- adrenaline is not a true alkaloid
c- alkaloids are found only in plants
d- nicotine is an oxygen-free alkaloid
e- all alkaloids have at least one nitrogen atom in their structure

MCQ # 05

The emetic alkaloid present in ipecac is;

a- coniine
b- cephaeline
c- scopolamine
d- solanine 
e- berberine

MCQ # 06

An example of pseudoalkaloids is;

a- galantamine
b- mescaline
c- adrenaline
d- nicotine
e- atropine

MCQ # 07

Which alkaloid has been used traditionally as an aphrodisiac and to enhance sexual performance;

a- Physostigmine
b- Reserpine
c- Yohimbine
d- Tubocurarine
e- Nicotine

MCQ # 08

Quinine and Quinidine are similar in all respects except;

a- origin
b- chemical structure
c- antimalarial activity
d- solubility
e- in rotating plane-polarized light

MCQ # 09

Which chemical constituent is NOT naturally obtained from the opium poppy plant?

a- codeine
b- thebaine
c- papaverine 
d- noscapine
e- theophylline

MCQ # 10

A toxic alkaloid that is historically known for its use as an arrow poison is:

a- ephedrine
b- tubocurarine
c- morphine
d- theobromine
e- galantamine

MCQ # 11

The pharmacological class of Cinnamon bark is;

a- antispasmodic
b- purgative
c- anticancer
d- cardio tonic
e- astringent

MCQ # 12

The chemical constituents of Black catechu are;

a- tannins
b- alkaloids
c- resins
d- proteins
e- carbohydrates

MCQ # 13

Which alkaloid is known for its use as a local anesthetic?

a- Quinine

b- Cocaine

c- Atropine

d- Reserpine

e- Morphine

MCQ # 14

Which of the following is an indole alkaloid?

a- Quinine

b- Morphine

c- Reserpine

d- Codeine

e- Pilocarpine

MCQ # 15

Which alkaloid is used in the treatment of Parkinson’s disease?

a- Atropine

b- Scopolamine

c- Reserpine

d- Levodopa

e- Galantamine

MCQ # 16

Which alkaloid has bronchodilator effects and is used in the treatment of asthma?

a- Ephedrine

b- Quinine

c- Atropine

d- Yohimbine

e- Morphine

MCQ # 17

Which alkaloid is derived from the coca plant?

a- Ephedrine

b- Theobromine

c- Nicotine

d- Cocaine

e- Morphine

MCQ # 18

Which of the following is a tropane alkaloid?

a- Caffeine

b- Cocaine

c- Morphine

d- Quinine

e- Nicotine

MCQ # 19

Which alkaloid is used as a muscle relaxant during surgery?

a- Ephedrine

b- Quinine

c- Tubocurarine

d- Atropine

e- Reserpine

MCQ # 20

Which alkaloid is commonly found in tea and coffee and acts as a stimulant?

a- Atropine

b- Reserpine

c- Morphine

d- Caffeine

e- Quinine

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Answer Keys

MCQ # - Correct option

1. c- atropine

2. a- cocaine

3. b- quinidine: vasodilatory

4. c- alkaloids are found only in plants

5. b- cephaeline

6. c- adrenaline

7. c- Yohimbine

8. e- in rotating plane-polarized light

9. e- theophylline

10. b- tubocurarine

11. a) Antispasmodic

12. a- tannins

13. b- Cocaine

14. c- Reserpine

15. d- Levodopa

16. a- Ephedrine

17. d- Cocaine

18. b- Cocaine

19. c- Tubocurarine

20. d- Caffeine