1.
Which of the following microorganism is used for production of citric acid in
industries?
a) Lactobacillus
bulgaris
b) Penicillium
citrinum
c)
Aspergillus niger
d)
Rhizopus nigricans
2.
Which of the following pair is correctly matched for the product produced by
them?
a) Acetobacter
aceti - Antibiotics
b) Methanobacterium
- Lactic acid
c) Penicilium
notatum - Acetic acid
d) Saccharomyces cerevisiae - Ethanol
3.
The most common substrate used in distilleries for the production of ethanol
is_________
a)
Soyameal
b)
Groundgram
c)
Molasses
d)
Corn meal
4.
Cyclosporin – A is an immunosuppressive drug produced from _______
a) Aspergillus
niger
b) Manascus
purpureus
c) Penicillium
notatum
d) Trichoderma polysporum
5.
CO2 is not released during
a)
Alcoholic fermentation
b) Lactate fermentation
c)
Aerobic respiration in animals
d)
Aerobic respiration in plants
6.
The purpose of biological treatment of waste water is to _______
a) Reduce BOD
b)
Increase BOD
c)
Reduce sedimentation
d)
Increase sedimentation
7.
The gases produced in anaerobic sludge digesters are
a)
Methane, oxygen and hydrogen sulphide.
b)
Hydrogen sulphide, methane and sulphur dioxide.
c)
Hydrogen sulphide, nitrogen and methane.
d) Methane, hydrogen sulphide and CO2.
8.
When domestic sewage mixes with river water
a)
Small animals like rat will die after drinking river water
b)
The increased microbial activity releases micronutrients such as iron.
c) The increased microbial activity uses up
dissolved oxygen
d) The
river water is still suitable for drinking as impurities are only about 0.1 per
cent
9.
Select the correct statement from the following
a)
Biogas is produced by the activity of aerobic bacteria on animal waste
b)
Methanobacterium is an aerobic bacterium found in rumen of cattle
c)
Biogas, commonly called gobar gas, is pure methane
d) Activated sludge-sediment in settlement tank of
sewage treatment plant is a right source of aerobic bacteria
10.
Read the following four statements (A to D):
a)
Colostrum is recommended for the new born because it is rich in antigen
b)
Chikungunya is caused by a gram negative bacterium
c)
Tissue culture has proved useful in obtaining virus-free plants.
d)
Beer is manufactured by distillation of fermented grape juice
How
many of the above statements are wrong?
a) Three b) Four c) One d) Two
11.
Which of the following are likely to be present in deep sea water?
a)
Archaebacteria
b)
Eubacteria
c) Blue – green algae
d) Saprophytic fungi
12. During sewage treatment,
biogas are produced which includes
a) Methane, hydrogen sulphide, carbon dioxide
b)
Methane, oxygen, hydrogen sulphide
c)
Hydrogen sulphide, methane, sulphur dioxide
d)
Hydrogen sulphide, nitrogen, methane
13.
What gases are produced in anaerobic sludge digesters?
a)
Methane and CO2 only
b) Methane, hydrogen sulphide and CO2
c)
Methane, hydrogen sulphide and O2
d)
Hydrogen sulphide and CO2
14.
Match the following list of microbes and their importance
|
a)Saccharomyces
cerevisiae |
(i)Production of immunosuppressive agents |
|
b)Monasus
purpureus |
(ii)Ripening of Swiss cheese |
|
c)Trichoderma
polysporum |
(iii)Commercial production of ethanol |
|
d)Propionibacterium
shermanii |
(iv)Production of blood cholesterol lowering agents |
a)
(iv) (iii) (ii) (i)
b)
(iv) (ii) (i) (iii)
c)
(iii) (i) (iv) (ii)
d) (iii) (iv) (i) (ii)
15.
Which of the following is wrongly matched in the given table?
|
Microbe |
Product |
Application |
|
(a)Trichoderma
polysporum |
Cyclosporin
A |
Immunosuppressive
drug |
|
(b)Monascus
purpureus |
Statins |
Lowering
of blood cholesterol |
|
(c)
Streptococcus |
Streptokinase |
Removal
of clot from blood vessel |
|
(d)Clostridium butylicum |
Lipase |
Removal of oil stains |
16.
Match Column – I with Column – II and select the correct options using the
codes given below:
|
Column
I |
Column
II |
|
A.Citric
acid |
1.
Trichoderma |
|
B.Cyclosporin
A |
2.
Clostridium |
|
C.Statins |
3.
Aspergillus |
|
D.Butyric
acid |
4.
Monoscus |
a)
A:3, B:1, C:4, D:2
b)
A:1, B:4, C:2, D:3
c)
A:3, B:4, C:1, D:2
d) A:3, B:1, C:2, D:4
No comments:
Post a Comment