Q. No.The vitamin whose content increases following the conversion of milk into curd by lactic acid bacteria is:
1.
Vitamin C
2.
Vitamin D
3.
Vitamin B12
4.
Vitamin E
Match the following list of bacteria and their commercially important products:
|
Bacterium |
Product |
||
|
(i) |
Aspergullus niger |
(a) |
Lactic acid |
|
(ii) |
Acetobacter aceti |
(b) |
Butyric acid |
|
(iii) |
Clostridium Butylicum |
(c) |
Acetic acid |
|
(iv) |
Lactobacillus |
(d) |
Citric Acid |
Choose the correct match:
| 1. | (i) - b, (ii) - c, (iii) - d, (iv) - a |
| 2. | (i) - b, (ii) - d, (iii) - c, (iv) - a |
| 3. | (i) - d, (ii) - c, (iii) - b, (iv) - a |
| 4. | (i) - d, (ii) - a, (iii) - c, (iv) - b |
The residue left after methane production from cattle dung is:
| 1. | burnt |
| 2. | burried in land fills |
| 3. | used as manure |
| 4. | used in civil construction |
BOD of waste water is estimated by measuring the amount of:
(1) total inorganic matter
(2) biodegradable organic matter
(3) oxygen evolution
(4) oxygen consumption.
The free-living fungus Trichoderma can be used for:
(1) killing insects
(2) biological control of plant diseases
(3) controlling butterfly caterpillars
(4) producing antibiotics
The primary treatment of waste water involved the removal of:
(1) dissolved impurities
(2) stable substances
(3) toxic substances
(4) harmful bacteria.
Identify the incrrectly matched pair:
(1) Trichoderma harzianum - Biocontrol
(2) Aspergillus niger - source of citric acid
(3) Baculovirus - narrow spectrum species specific insecticides
(4) Monascus purpureus - source of cholesterol synthesizing enzyme
Identify the incorrectly matched pair
|
1. |
Baculoviruses |
Species specific, broad spectrum insecticides |
|
2. |
Trichoderma |
Free living fungi common in root ecosystems |
|
3. |
Ladybird |
Biocontrol of aphids |
|
4. |
Organic farming |
Pests kept at manageable levels rather than completely eradicated |
Identify the incorrect matched pair:
(1) Trichoderma harzianum: Cyclosporin A
(2) Monascus purpureus: Statins
(3) Aspergillus niger: Citric acid
(4) Streptococcus pyogenes: Clot buster
Baculoviruses are:
| 1. | Species specific, narrow spectrum insecticides |
| 2. | Species specific, broad spectrum insecticides |
| 3. | Non specific, narrow spectrum inseticides |
| 4. | Non specific, broad spectrum insecticides |
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