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Microbes In Human Welfare

124 Questions Start Allen Test
All Exams Allen
Q76 Allen 2. (Previous Year Questions) MCQ
Match the following columns and select the correct option :-
Column-IColumn-II
(a)Dragonflies
(b)Bacillus thuringiensis
(c)Glomus
(d)Baculoviruses
(i)Biocontrol agents of several plant pathogens
(ii)Get rid of mosquitoes
(iii)Narrow spectrum insecticidal applications
(iv)Biocontrol agents of lepidopteran plant pests
(v)Absorb phosphorus from soil
A.
a-iii, b-v, c-iv, d-i
B.
a-iii, b-i, c-ii, d-iv
C.
a-ii, b-iii, c-iv, d-v
D.
a-ii, b-iv, c-v, d-iii
Q77 Allen 2. (Previous Year Questions) MCQ
Cyclosporin A, used as immunosuppression agent, is produced from :-
A.
Monascus purpureus
B.
Saccharomyces cerevisiae
C.
Penicillium notatum
D.
Trichoderma polysporum
Q78 Allen 2. (Previous Year Questions) Match the Columns
Match Column - I with Column - II:-
Column-IColumn-II
(a)Aspergillus niger
(b)Acetobacter aceti
(c)Clostridium butylicum
(d)Lactobacillus
(i)Acetic Acid
(ii)Lactic Acid
(iii)Citric Acid
(iv)Butyric Acid
A.
a-iii,b-i, c-iv, d-ii
B.
a-ii, b-iv, c-iii, d-iv
C.
a-ii, b-iii,c-i, d-iv
D.
a-iv, b-ii, c-i, d-iii
Q79 Allen 2. (Previous Year Questions) MCQ
Identify the microorganism which is responsible for the production of an immune suppressive molecule cyclosporin A?
A.
Clostridium butylicum
B.
Aspergillus niger
C.
Streptococcus cerevisiae
D.
Trichoderma polysporum
Q80 Allen 2. (Previous Year Questions) MCQ
What will happen if fresh water lake gets contaminated by addition of polluted water with high BOD?
A.
Amount of dissolved oxygen in the lake will decrease
B.
The lake will remain unaffected
C.
Number of submerged aquatic plants in the lake will increase
D.
Number of aquatic animals in the lake will increase
Q81 Allen 2. (Previous Year Questions) MCQ
Select the correct statements regarding dissolved Oxygen and Biochemical Oxygen Demand.
(A) BOD is inversely related to dissolved oxygen.
(B) Low dissolved oxygen and high BOD lead to loss of aquatic life.
(C) High BOD leads to high dissolved oxygen.
(D) Both BOD and dissolved oxygen are indicator of health of a water body.
(E) Both BOD and dissolved oxygen are affected by amount of organic matter in the water body.
Choose the most appropriate answer from the options given below :
A.
(A), (B), (C), (E) only
B.
(A), (B), (D), (E) only
C.
(A), (B), (C), (D) only
D.
(B), (C), (D), (E) only
Q82 Allen 2. (Previous Year Questions) Match the Columns
Match Column-I with Column-II.
Column-IColumn-II
(a)Clostridium butylicum
(b)Saccharomyces cerevisiae
(c)Trichoderma polysporum
(d)Streptococcus sp.
(i)Ethanol
(ii)Streptokinase
(iii)Butyric acid
(iv)Cyclosporin-A
A.
a-iii, b-i, c-iv, d-ii
B.
a-ii, b-iv, c-iii, d-i
C.
a-iii, b-i, c-iv, d-ii
D.
a-iv, b-i, c-iii, d-ii
Q83 Allen 2. (Previous Year Questions) MCQ
The Bt toxin in genetically engineered Bt cotton kills the pest by :
A.
creating pores in the midgut.
B.
damaging the respiratory system
C.
degenerating the nervous system
D.
altering the pH of body fluids.
Q84 Allen 2. (Previous Year Questions) Match the Columns
Match Column-I with Column-II relating to microbes and their products :
Column-IColumn-II
(a)Streptococcus
(b)Trichoderma polysporum
(c)Monascus purpureus
(d)Aspergillus niger
(i)Citric acid
(ii)Clot buster
(iii)Cyclosporin-A
(iv)Statins
A.
a-ii,b-iii,c-iv, d-i
B.
a-i, b-ii, c-iii,d-iv
C.
a-i, b-iii,c-ii, d-iv
D.
a-i, b-iv, c-ii, d-iii
Q85 Allen 3. NCERT BASED QUESTIONS MCQ
Nutritionally curd is more suitable then milk. Which of the following reason does not support this view:-
A.
It increases vitamin $B_{12}$
B.
It checks disease causing microbes
C.
LAB convert lactose into lactic acid
D.
It provides additional proteins
Q86 Allen 3. NCERT BASED QUESTIONS MCQ
Large holes in "Swiss cheese" are due to production of large amount of $\mathrm{CO}_{2}$ by ...... bacterium:-
A.
Leuconostoc mesenteroides
B.
Propionibacterium sharmanii
C.
Thermococcus proteus
D.
Staphylococcus thermophiles
Q87 Allen 3. NCERT BASED QUESTIONS MCQ
Which of the following is not a product of distillation:-
A.
Whisky
B.
Brandy
C.
Wine
D.
Rum
Q88 Allen 3. NCERT BASED QUESTIONS MCQ
Find out odd one with reference to distillation
A.
Beer
B.
Wine
C.
Both (1) and (2)
D.
Vodka
Q89 Allen 3. NCERT BASED QUESTIONS MCQ
Which of the following bacteria was associated with discovery of penicillin
A.
Streptococcus
B.
Staphylococcus
C.
Saccharomyces cerevisiae
D.
Propionibacterium
Q90 Allen 3. NCERT BASED QUESTIONS MCQ
Full potential of penicillin as an effective antibiotic was established by:-
A.
Alexander Flemming
B.
Ernest Chain
C.
Howard Florey
D.
Both (2) and (3)
Q91 Allen 3. NCERT BASED QUESTIONS MCQ
Which of the following is "Clot buster":
A.
Citric acid
B.
Streptokinase
C.
Cyclosporin
D.
Statins
Q92 Allen 3. NCERT BASED QUESTIONS MCQ
Which of the following chemicals is used as an immunosuppressive agent in organ transplantation:-
A.
Streptokinase
B.
Cyclosporin - A
C.
Statins
D.
Citric acid
Q93 Allen 3. NCERT BASED QUESTIONS MCQ
Match the following :-
Column-IColumn-II
(a)Pectinases
(b)Streptokinase
(c)Cyclosporin-A
(d)Statin ā€“
(i)Blood cholesterol lowering agents
(ii)Immunosuppressive agents
(iii)Clot-buster
(iv)Clarifying agents
A.
a-iv, b-iii, c-ii, d-i
B.
a-iv, b-iii, c-i, d-ii
C.
a-iii, b-iv, c-ii, d-i
D.
a-i, b-ii, c-iii, d-iv
Q94 Allen 3. NCERT BASED QUESTIONS MCQ
Match the following:-
Column-IColumn-II
(a)Citric acid
(b)Streptokinase
(c)Cyclosporin-A
(d)Statins
(i)Streptococcus
(ii)Aspergillus niger
(iii)Aspergillus niger
(iv)Aspergillus niger
A.
a-ii, b-i, c-iv, d-iii
B.
a-ii, b-i, c-iii, d-iv
C.
a-iii, b-i, c-iv, d-ii
D.
a-iv, b-ii, c-iii, d-i
Q95 Allen 4. ANALYTICAL QUESTIONS MCQ
Functioning of statin is based on:-
A.
Competitive inhibition
B.
End product inhibition
C.
Allosteric inhibition
D.
Negative feedback inhibition
Q96 Allen 4. ANALYTICAL QUESTIONS MCQ
The technology of biogas production was developed in India mainly due to efforts of :
A.
IARI
B.
KVIC
C.
IPM
D.
Both (1) and (2)
Q97 Allen 4. ANALYTICAL QUESTIONS MCQ
Bacillus thuringiensis show their inhibitory effect on which part of the insect body:-
A.
Gut
B.
Respiratory tract
C.
Nervous system
D.
Circulatory system
Q98 Allen 4. ANALYTICAL QUESTIONS MCQ
Which of the following biological agents are used for species specific, narrow spectrum insecticidal applications:-
A.
Adenoviruses
B.
Nucleopolyhedro viruses
C.
Retroviruses
D.
Trichoderma
Q99 Allen 4. ANALYTICAL QUESTIONS MCQ
Which of the following is one of the advantages of application of viruses as bioinsecticides?
A.
They are less effective
B.
They are host specific
C.
They are costly
D.
They cannot be obtained easily
Q100 Allen 4. ANALYTICAL QUESTIONS MCQ
In which of the following conditions use of baculoviruses is desirable?
A.
When they are used as part of IPM
B.
When an ecologically sensitive area is being treated
C.
When beneficial insects are being conserved
D.
All of the above