MCQ in Pharmacognosy UNIT - 5 (TEST - 3)

 

PHARMACOGNOSY MCQ (TEST 3)  

MULTIPLE CHOICE QUESTIONS

S. Y. B.PHARM (UNIT-5) SEM-IV 

AS PER PCI SYLLABUS

1. Composition of Bial’s reagent is ……

  A) Sodium citrate, CuSO4  
B) Orcinol, HCl and FeCl3
C) Sodium citrate, Sodium carbonate
D) Resorcinol, HCl

... Answer is B)
Composition of Bial’s reagent is Orcinol, HCl and FeCl3 . "

2. Red colour of red algae is due to ……

A) Gelidium
B) Mucilage
C) Phycoerythrin
D) None of these

... Answer is C)
Red colour of red algae is due to Phycoerythrin. .

3. Bassorin is ……

A) Alcohol insoluble
B) Water soluble
C) Water insoluble
D) Alcohol soluble

... Answer is C)
Bassorin is Water insoluble.

4. Citral gum is used as adulterant of ……

A) Acacia
B) Tragacanth
C) Agar
D) Acacia

... Answer is B)
Citral gum is used as adulterant of Tragacanth. "

5. The major amino acid present in Honey is ……

A) Proline
B) Glycine
C) Leucine
D) Aspartic acid

... Answer is A)
The major amino acid present in Honey is Proline. .

6.The optimum working temperature of enzymes lies between... .

A) 35-50°C
B) 60-70°C
C) 20-25°C
D) 10-20°C

... Answer is D)
The optimum working temperature of enzymes lies between 10-20°C. .

7. Trace out the wrong statement regarding enzymes.

A) Enzymes are proteins or proteins combined with other chemical groups
B) They can be precipitated by alcohol or acetone and by high concentration of salts.
C) They are practically inactive at 35°C
D) They accelerate the velocity of the chemical reaction without themselves being altered after the reaction

... Answer is B)
They can be precipitated by alcohol or acetone and by high concentration of salts.

8. Oxido-reductases are those which ……

A) catalyzes the addition of groups to double bond or vice versa
B) are responsible for isomerization reactions.
C) catalyzes oxidation-reduction reactions
D) catalyzes hydrolytic reaction

... Answer is C)
catalyzes oxidation-reduction reactions.

9. Isomerases are those which ……

A) catalyzes the addition of groups to double bond or vice versa
B) are responsible for isomerization reactions.
C) catalyzes oxidation-reduction reactions
D) catalyzes hydrolytic reaction

... Answer is D)
catalyzes hydrolytic reaction. .

10. Pepsin is prepared from ……

A) Lac
B) Mucous membrane of stomach of pig
C) Testes and semen of mammals
D) Fruits of Aegle marmelos

... Answer is C)
Pepsin is prepared from Testes and semen of mammals . "

11. The destruction of enzymes takes place above

A) 0°C
B) 20°C
C) 25°C
D) 60°C

... Answer is D)
The destruction of enzymes takes place above 60°C. .

12. Enzymes are classified on the basis of

A) Site of the action
B) Types of the chemical reaction catalyzed
C) Both A & B
D) None of the above

... Answer is D)
None of the above. .

13. Hydrolases are those which

A) catalyses the addition of groups to double bond or vice versa
B) are responsible for isomerization reactions.
C) catalyzes oxidation-reduction reactions
D) catalyzes hydrolytic reaction

... Answer is A)
catalyses the addition of groups to double bond or vice versa .

14. Lyases are those which:

A) catalyzes oxidation-reduction reactions
B) catalyzes hydrolytic reaction
C) are responsible for isomerization reactions.
D) catalyzes the addition of groups to double bond or vice versa

... Answer is C)
are responsible for isomerization reactions. .

15. Anogeissus latifolia is used as adulterant of ……

A) Gelatin
B) Acacia
C) Tragacanth
D) Agar

... Answer is B)
Anogeissus latifolia is used as adulterant of Acacia. .

16. Agar reacts with Ruthenium red and gives ……

A) Yellow colour
B) No reaction
C) Red colour
D) White colour

... Answer is C)
Agar reacts with Ruthenium red and gives Red colour. .

17. Aqueous solution of Tragacanth reacts with Guaicol and few drops of H2O2 and gives …… precipitate.

A) White colour
B) Brown colour
C) Red colour
D) No colour

... Answer is D)
Aqueous solution of Tragacanth reacts with Guaicol and few drops of H2O2 and gives No colour. .

18. Sterculia gum is used as adulterant of ……

A) Tragacanth
B) Gelatin
C) Agar
D) Acacia

... Answer is A)
Sterculia gum is used as adulterant of Tragacanth . .

19. Fiehe’s test is carried out to detect adulterant of Honey with ……

A) Cane sugar
B) Commercial sugar
C) Inverted sugar
D) Glucose

... Answer is C)
Fiehe’s test is carried out to detect adulterant of Honey with Inverted sugar. .

20. Cuoxam solution contains ……

A) Ammoniacal copper nitrate
B) Alkaline copper oxide
C) Ammoniacal copper oxide
D) Ammoniacal copper sulphate

... Answer is C)
Cuoxam solution contains Ammoniacal copper oxide. .