Match the following list of bioactive substances and their roles:
Bioactive Substances: -
(i) Statins (ii) Cyclosporin A (iii) Streptokinase (iv) Lipase
Role-
A. Removal of oil stains
B. Removal of clots from blood vessels
C. Lowering of blood cholesterol
D. Immuno-suppressive agent
Choose the correct match:
1. i B, ii C, iii A, iv D
2. i D, ii B, iii A, iv C
3. i B, ii A, iii D, iv C
4. i C, ii D, iii B, iv A
Match the items in Column ‘A’ and Column ‘B’ and choose correct answer:
Column A |
Column B |
(i) Lady bird |
(A) Methanobacterium |
(ii) Mycorrhiza |
(B) Trichoderma |
(iii) Biological control |
(C) Aphids |
(iv) Biogas |
(D) Glomus |
The correct answer is:
1. i B, ii D, iii C, iv A
2. i C, ii D, iii B, iv A
3. i D, ii A, iii B, iv C
4. i C, ii D, iii A, iv A
Mycorrhiza does not help the host plant in:
1. Enhancing its phosphorus uptake capacity
2. Increasing its tolerance to drought
3. Enhancing its resistance to root pathogens
4. Increasing its resistance to insects
Biological Pest Control methods are more preferably used because-
1. Chemical pesticides are discriminate
2. Predators work through check and balance
3. Predators are indiscriminate
4. All of above
Which of the following statement is incorrect?
1. Trichoderma is free living fungi, present in root ecosystem acts as biocontrol agent
2. Genus of baculoviruses is species group specific broad spectrum insecticide
3. All harmful insect pests should be kept at manageable level as it furthers biodiversity
4. Ladybird and Dragonflies are used as biocontrol agent
Read the following four statements (I – IV), find out certain mistakes in two of them.
I: In our stomach lactic acid bacteria play beneficial role by checking growth of disease causing microbes.
II: Lactic acid bacteria produce acid that coagulates and completely digests the milk protein.
III: Lactic acid bacteria improve the nutritional quality by increasing the amount of Riboflavin
IV: Lactic acid bacteria require suitable temperature for their multiplication.
Which of the above two statements are not correct?
1. Statements I and II
2. Statement I and III
3. Statement II and III
4. Statements II and IV
In high yielding hybrid crop varieties to exploit hybrid vigour, the farmers need to purchase fresh hybrid seed every year because
1. They are not allowed to grow their own seed
2. Hybrid vigour is lost due to inbreeding depression
3. It is cheaper to purchase fresh seed
4. None
Citric acid is produced by
1.Clostridium
2.Aspergillus niger
3.Acetobacter
4.Lactobacillus
Yeast is used in the production of
1. Bread and Beer
2. Cheese and Butter
3. Citric acid and Lactic acid
4. Lipase and Pectinase
Select the mis-match:
1. Monascus purpureus - Statins
2. Trichoderma polysporum - Cyclosporin-A
3. Clostridium butylicum - Citric acid
4. Streptococci - Streptokinase
The distillation of the fermented broth is required in the formation of
A. rum
B. beer
C. brandy
D. whisky
1. A, B, C
2. A, C, D
3. B, C, D
4. A, B, D
The technology of biogas production in India has been developed by the efforts of
A. Khadi and Village Industries Commission (KVIC)
B. Indian Council of Agricultural Research (IARI)
C. Indian Agricultural Research Institute (IARI)
D. Indian Council of Medical Research (ICMR
1. A, C, D
2. C, D
3. A, C
4. A, B
Which antibiotic is not produced by a moneran
1. Erythromycin
2. Streptomycin
3. Penicillin
4. Tetramycin
Flocs is
1. Primary sludge produced in sewage treatment.
2.A type of biofortified food.
3. A mesh like structure formed by association of bacteria and fungal filaments in sewage
treatment.
4. The effluent in primary treatment tank obtained during sewage treatment
Ernest Chain and Howard Florey’s contribution was
1. Discovery of streptokinase.
2. Establishment of potential of penicillin as effective drug.
3. Discovery of DNA sequences.
4. Isolating the bacterial plasmid.
Which of the following in sewage treatment removes suspended solids?
1. Secondary treatment.
2. Primary treatment
3. Sludge treatment
4. Tertiary treatment
Conversion of milk to curd improves its nutritional value by increasing the amount of
1. Vitamin D
2. Vitamin A
3. Vitamin
4. Vitamin E
Which of the following alcoholic drinks are produced by distillation of the fermented broth:
1. Beer and wine
2. Whisky, brandy, rum
3. Beer and rum
4. Wine and brandy
Which of the following bioactive moleule is used as a blood cholesterol lowering agent :
1. Cyclosporin-A
2. Streptokinase
3. Statins
4. All the above
In mycorrhiza association the fungal symbiont helpful in :
1. Phosphorus nutrition
2. Resistance to root borne pathogen
3. Tolerance to salinity and drought
4. All the above
A major component of gobar gas is :
1. Butane
2. Ammonia
3. Methane
4. Ethane
Which of the following is not used as a biofertilizers :
1. Rhizobium
2. Fungi-Glomus
3. Cyano bacteria
4. Yeast
The large vessels for growing microbes on an industrial scale are called
1. Petri dish
2. digestors
3. biogas vessel
4. fermentors
BOD of waste water is estimated by measuring the amount of
1. total organic matter
2. biodegradable organic matter
3. oxygen evolution
4. oxygen consumption
Big holes in Swiss cheese are made by a
1. machine
2. bacterium that produces methane gas
3. bacterium producing a large amount of carbon dioxide
4. fungus that releases a lot of gases during its metabolic activities