Pharmacognosy & Phytochemistry I
Cultivation, Collection, Processing, and Storage of Drugs of Natural Origin MCQs with Answer
1. Which of following is not the exogenous factor effecting the cultivation of medicinal plant
A. Fertilizer
B. Altitude
C. Temperature
D. Polyploidy
2. In water stress condition which plant hormone responsible for closing of stomata
A. Abscisic acid
B. Gibberellin
C. Cytokinin
D. Auxin
3. Function of Cytokinin
A. Promote leaf senescence
B. Stimulates the growth of lateral buds
C. Stimulation of chlorophyll synthesis
D. Both B and C
4. First discovered naturally occurring Auxin is
A. Indole-3- butyric acid
B. Indole -3- acetic acid
C. Both A and B
D. Napthyl acetic acid
5. Which of following is not the function of Gibberellins
A. Stimulate cell elongation in stem
B. Parthenocarpic fruit development.
C. Promote senescence in leaves
D. Stimulates bolting/flowering in response to long days.
6. Example of Bio-fertilizer
A. Rhizobium
B. Mycorrhiza
C. Cyanobacteria
D. All above
7. Chemical agent which is widely used to induce polyploidy
A. Cytokinin
B. Myrcetein
C. Colchicine
D. Coniene
8. In hybridization method, stamens are removed from female parent plant is known as
A. Pollination
B. Bagging
C. Tagging
D. Emasculation
9. Drying method for the drugs (papain, pectin etc) which are highly sensitive to
atmospheric condition and temperature
A. Vacuum drying
B. Tray drying
C. Spray drying
D. Shed drying
10. Step of preparation of crude drug in which sand, dirt, and foreign organic matter from crude drug are removed is called as
A. Dibbling
B. Garbling
C. Sophistication
D. Layering
11. Crude drug which is sensitive to radiation of direct sunlight
A. Digitalis
B. Cod liver oil
C. Both A and B
D. Cinchona bark
12. Which of following factor to be considered at the time of collection of crude drug
A. Time of collection
B. Season
C. Age of plant
D. All above
13. Which of the following is an example of chemical mutagens
A. Nitrogen mustard
B. Formaldehyde
C. Nitrous acid
D. All above
14. Chromosomal mutation in which the organism contain more than the two set of chromosome is called
A. Mutation
B. Polyploid
C. Aneuploidy
D. Both A and B
15. Which of the following is not the example of synthetic auxin
A. Naphthyl acetic acid
B. 2, 4 –Dichlorophenoxyacetic acid
C. N, N diphenyl urea
D. 2- Naphthyloxyacetic acid
16. Which of the following is gaseous plant hormone
A. Ethylene
B. Abscisic acid
C. Gibberellin
D. Cytokinin
17. First naturally occurring cytokinin is
A. Kinetin
B. Zeatin
C. Adenine
D. N, N diphenyl urea
18. Plant hormone which promote fruit ripening
E. Ethylene
F. Abscisic acid
G. Gibberellin
H. Cytokinin
19. Which of the following auxin in higher concentration is used as selective weedicide
A. Naphthyl acetic acid
B. 2, 4 –Dichlorophenoxyacetic acid
C. N, N diphenyl urea
D. 2- Naphthyloxyacetic acid
20. First naturally occurring Plant hormone
A. Abscisic acid
B. Gibberellin
C. Cytokinin
D. Auxin
