Biochemistry & Microbiology Test

Question 1
1 / -0.25

Which of the following is used as fungal pesticide against Colorado beetle?

A
Beauveria bassiana

B
Fausarium sp.

C
Aspergillus niger

D
Alternaria sp.

Question 2
1 / -0.25

Which of the following is a N₂ fixing actinomycete:

A
Acetobacter

B
Azotobacter

C
Frankia

D
Azospirillum

Question 3
1 / -0.25

Folic acid and panthothenic acid are vitamin belonging to group

A
K

B
A

C
B-complex

D
D

Question 4
1 / -0.25

Rhizobium has symbiotic association with:

A
legumes

B
non-legume crops

C
sugarcane

D
paddy

Question 5
1 / -0.25

Cobalt containing vitamin is

A
Vitamin B₂

B
Vitamin B₆

C
Vitamin B₁₂

D
Vitamin B₁

Question 6
1 / -0.25

Three buffers are made by combining a 1 M solution of acetic acid with a 1 M solution of sodium acetate in the ratios shown below.

1 M Acetic
acid
1 M sodium
acetate
Buffer 1:
10 mL
90 mL
Buffer 2:
50 mL
50 mL
Buffer 3:
90 mL
10mL
Which of these statements is true of the resulting buffers?

A
pH of buffer 1 < pH of buffer 2 < pH of buffer 3

B
pH of buffer 1 = pH of buffer 2 = pH of buffer 3

C
pH of buffer 1 > pH of buffer 2 > pH of buffer 3

D
The problem cannot be solved without knowing the value of pk_a

Question 7
1 / -0.25

The term apoenzyme is applicable to

A
Simple enzyme

B
Protein part of conjugate enzyme

C
Organic cofactor of a conjugate enzyme

D
Inorganic cofactor of a conjugate enzyme

Question 8
1 / -0.25

Zymogen is

A
Enzyme poison

B
Enzyme modulator

C
Enzyme precursor

D
Enzyme inhibitor

Question 9
1 / -0.25

The catalytic efficiency of two different enzymes can be compared by the

A
Formation of the product

B
Km value

C
Molecular size of the enzymes

D
pH of optimum value

Question 10
1 / -0.25

Salting out process involves

A
precipitation of proteins using ammonium sulphate

B
precipitation of proteins using copper sulphate

C
precipitation of proteins using sodium chloride

D
None of these

Submit Test

	1 M Acetic acid	1 M sodium acetate
Buffer 1:	10 mL	90 mL
Buffer 2:	50 mL	50 mL
Buffer 3:	90 mL	10mL

Biochemistry & ...

Question 1

Beauveria bassiana

Fausarium sp.

Aspergillus niger

Alternaria sp.

Question 2

Acetobacter

Azotobacter

Frankia

Azospirillum

Question 3

K

A

B-complex

D

Question 4

legumes

non-legume crops

sugarcane

paddy

Question 5

Vitamin B2

Vitamin B6

Vitamin B12

Vitamin B1

Question 6

pH of buffer 1 < pH of buffer 2 < pH of buffer 3

pH of buffer 1 = pH of buffer 2 = pH of buffer 3

pH of buffer 1 > pH of buffer 2 > pH of buffer 3

The problem cannot be solved without knowing the value of pka

Question 7

Simple enzyme

Protein part of conjugate enzyme

Organic cofactor of a conjugate enzyme

Inorganic cofactor of a conjugate enzyme

Question 8

Enzyme poison

Enzyme modulator

Enzyme precursor

Enzyme inhibitor

Question 9

Formation of the product

Km value

Molecular size of the enzymes

pH of optimum value

Question 10

precipitation of proteins using ammonium sulphate

precipitation of proteins using copper sulphate

precipitation of proteins using sodium chloride

None of these

User

Question Analysis

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.

Vitamin B₂

Vitamin B₆

Vitamin B₁₂

Vitamin B₁

The problem cannot be solved without knowing the value of pk_a