Microbes in Human Welfare: MCQs Quiz – 4 2


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Microbes in Human Welfare Questions: MCQs (Multiple Choice Questions) in Quiz Format on ‘Microbes in Human Welfare’. Quiz No. 4

Microbes in Human Welfare: MCQs Quiz - 4

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Question 1
Which one of the following is used as biological insecticide?
A
Silkmoth
B
Caterpillar
C
Tiger beetle
D
Mazra Poka
Question 2
In paddy fields biological nitrogen fixation is chiefly brought by
A
Mycorrhiza
B
Green algae
C
Cyanobacteria
D
Rhizobium
Question 3
During anaerobic digestion of organic waste, such as in producing biogas, which one of the following is left undergraded?
A
Hemi-cellulose
B
Lignin
C
Lipids
D
Cellulose
Question 4
An important drug is obtained from the bark of
A
Withania
B
Cinchona
C
Papaver
D
Momordica
Question 5
Bacillus thuringiensis (Bt) strains have been used for designing novel
A
Biofertilizers
B
Bio-mineralization processes
C
Bio-insecticidal plants
D
Bio-metallurgical techniques
Question 6
Powdery mildew of wheat is caused by a species of
A
Ustilago
B
Erysiphe
C
Puccinia
D
Albugo
Question 7
Genetic diversity in agricultural crops is threatened by:
A
Introduction of high yielding varieties
B
Intensive use of fertilizers
C
Extensive intercropping
D
Intensive use of biopesticides
Question 8
Which of the following is not used as a biopesticide?
A
Trichoderma harzianum
B
Bacillus thuringiensis
C
Xanthomonas campestris
D
Nuclear Polyhedrosis Virus (NPV)
Question 9
Which of the following is wrongly matched?
A
Aloe – Medicine
B
Petunia – Fumigatory
C
Sesbania – Fodder
D
Asparagus – Vegetable
Question 10
A hybrid where the cytoplasm of two parent cells are fused by retaining only one parental nucleus is called
A
Asymmetric somatic hybrid
B
Symmetric somatic hybrid
C
An interbreed
D
Cybrid
Question 11
Pollution from animal excreta and organic waste from kitchen can be most profitably minimized by
A
Storing them in underground storage tanks
B
Using them for producing biogas.
C
Vermiculture
D
Using them directly as biofertilizers.
Question 12
Morphine, which is used as an analgesic is obtained from
A
Taxus brevifolia
B
Papaver somniferum
C
Cinchona officinalis
D
Berberis nilghiriensis
Question 13
Study the followings related to uses of plants and identify the correct match for the sorghum and cotton respectively.

I. Blood purification and organic fertilizer.

II. Animal feed and paper industry

III. 'B' Vitamin and cosmetics.

IV. Explosives and organic fertilizer.

The correct pair is:

A
I, II
B
II, III
C
III, IV
D
II, IV
Question 14
Match Column I with II and choose the right option.
Column - I Column - II

(1)

Artemisia (A) Fibre

(2)

Astragalus (B) Insecticide

(3)

Phormium (C) Rat poison

(4)

Chrysanthemum (D) Medicine

(5)

Withania (E) Vermifuge
    (F) Gum
A
1 – D, 2 – C, 3 – F, 4 – B, 5 – 3
B
1 – B, 2 – E, 3 – D, 4 – C, 5 – A
C
1 – E, 2 – E, 3 – A, 4 – F, 5 – D
D
1 – E, 2 – F, 3 – A, 4 – B, 5 – D
Question 15
Study the following lists:
List - I List - II
(A) Usage of bisexual flowers as female parents (I) Clonal selection
(B) Incorporation of several desirable characters into a single variety (II) Pure line selection
(C) Exploiting hybrid vigour for many generations (III) Emasculation
(D) Improving local varieties of self pollinated crop (IV) Hybridization
    (V) Polyploidy breeding
The correct match is:
A
A - IV, B - V, C - III, D - I
B
A - II, B - III, C - IV, D - V
C
A - III, B - IV, C - I, D - II
D
A - I, B - V, C - II, D - IV
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There are 15 questions to complete.

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2 thoughts on “Microbes in Human Welfare: MCQs Quiz – 4

  • samhita kar

    thanks a lot for these questions… if we are able to solve these, then we will surely crack the aipmt exam..

  • aaliya thakur

    i m glade to held this paper and satisfy