For the commercial and industrial production of Citric Acid, which of the following microbes is used?
1. Aspergillus niger
2. Lactobacillus sp
3. Saccharomyces cerevisiae
4. Clostridium bretylium
Match the following columns and select the correct option:-
Column I |
Column II |
||
(a) |
Dragonflies |
(i) |
Biocontrol agents of several plant pathogens |
(b) |
Bacillus thuringiensis |
(ii) |
Get rid of mosquitoes |
(c) |
Glomus |
(iii) |
Narrow spectrum insecticidal applications |
(d) |
Baculoviruses |
(iv) |
Biocontrol agents of lepidopteran plant pests |
(v) |
Absorb phosphorus from soil |
Options: | (a) | (b) | (c) | (d) |
1. | (iii) | (v) | (iv) | (i) |
2. | (ii) | (i) | (iii) | (iv) |
3. | (ii) | (iii) | (iv) | (v) |
4. | (ii) | (iv) | (v) | (iii) |
Cyclosporin A, used as an immuno-suppression agent, is produced from:
1. Monascus purpureus
2. Saccharomyces cerevisiae
3. Penicillium notatum
4. Trichoderma polysporum
Domestic sewage in large cities:
1. | is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plant (STPs) |
2. | when treated in STPs, does not require the aeration step as the sewage contains adequate oxygen |
3. | has very high amounts of suspended solids and dissolved salts |
4. | has a high BOD as it contains both aerobic and anaerobic bacteria |
An example of endomycorrhiza is:
1. Glomus
2. Agaricus
3. Rhizobium
4. Nostoc
Which one of the following is a wrong matching of a microbe and its industrial product, while the remaining three are correct?
1. Aspergillus niger – citric acid
2. Yeast – statins
3. Acetobacter aceti – acetic acid
4. Clostridium butylicum – lactic acid
Read the following statement having two blanks (A and B):
''A drug used for ______ (A)___ patients is obtained from a species of the organism ______ (B)___ ''. The one correct option for the two blanks is:
Blank-A | Blank-B | |
1. | AIDS | Pseudomonas |
2. | Heart | Penicillium |
3. | Organ-transplant | Trichoderma |
4. | Swine flu | Monascus |
Bacillus thuringiensis (Bt) strains have been used for designing novel:
1. Bioinsecticidal plants
2. Bio-mineralization processes
3. Biofertilizers
4. Bio-metallurgical techniques
Which of the following yields citric acid?
1. Penicillium citrinum
2. Aspergillus niger
3. Saccharomyces
4. Azospirillium
Saccharomyces cerevisiae is used in the formation of:
1. Ethanol
2. Methanol
3. Acetic acid
4. Antibiotics