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Biology > Microbes in human welfare > Flashcards

Microbes in human welfare Flashcards

1
Q

Shape of TMV

A

Rod shaped

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2
Q

Converting milk to curd improves

A

Vitamin B12 content

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3
Q

Toddy is made from

A

Sap of palms

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4
Q

Adenovirus causes

A

Respiratory infection

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5
Q

Yeast name

A

Saccharomyces cerevisiae

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6
Q

Swiss cheese microbe

A

Propionibacterium sharmanii

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7
Q

Roquefort cheese microbe

A

Specific fungus Penicillium roquefortii

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8
Q

Bottled juices are clarified by

A

Pectinases and proteases

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9
Q

Statins lower cholesterol by

A

Competitive inhibition of enzyme producing cholesterol

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10
Q

Alexander Fleming worked on

A

Staphylococci bacteria

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11
Q

Full potential of penicillin was established by

A

Ernest Chain and Howard Florey

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12
Q

Antibiotic used to treat American soldiers in WW2

A

Penicillin

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13
Q

Whooping cough common name

A

Kali Khansi

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14
Q

Leprosy common name

A

Kusht Rog

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15
Q

Diptheria common name

A

Gal Ghotu

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16
Q

Citric Acid

A

Aspergillus niger

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17
Q

Cyclosporin A

A

Trichoderma polysporum (fungus)

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18
Q

Statins

A

Monascus purpureus

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19
Q

Primary sewage treatment consists of

A

filtration and sedimentation

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20
Q

Treatment of sewage is done by

A

Heterotrophic microbes

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21
Q

Ganga and Yamuna action plan was initiated by

A

Ministry of environment and forests

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22
Q

Primary effluent is passed into

A

Aeration tank

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23
Q

Floating debris is removed by

A

Sequential filtration

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24
Q

Soil and small pebbles (grit) are removed by

A

Sedimentation

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25
Flocs are
Masses of bacteria associated with fungal filament to form mesh like structures
26
Flocs are formed in
Secondary treatment
27
Secondary treatment is AKA
Biological treatment
28
BOD
Biochemical Oxygen Demand
29
After BOD is reduced effluent is passed into
Settling tanks
30
Bacterial floc sediment is called
Activated Sludge
31
Remaining major part of activated sludge is passed to
Anaerobic sludge digesters
32
Gases produced during anaerobic digestion
CH4, H2S, CO2 (BIOGAS)
33
Effluent from Secondary treatment plant is
Released into rivers and streams
34
Methanogens grow on
Cellulosic material
35
Methanogens are
Anaerobic
36
Methanogens produce
CH4, CO2, H2
37
Methanogens example
Methanobacterium
38
Bacteria present in rumen of cattle
Methanogens
39
Methanogens are commonly found in which part of sewage treatment
Anaerobic sludge during secondary treatment
40
Depth of biogas concrete tank
10-15 feet
41
Spent slurry of biogas plant is used as
fertilizer
42
Biogas technology was developed in India due to efforts of
Indian Agricultural Research Institute (IARI) and Khadi and Village Industries Commission (KVIC)
43
Sustainability of landscape is directly related to
Variety in landscape
44
Organic farming does not include
Genetically modified crops, biofortification and chemical pesticides and insecticides
45
Ladybirds and dragonflies are useful to get rid of
Aphids and mosquitoes
46
Bacillus thuringiensis helps in control of
Butterfly caterpillars on brassicas and fruit trees
47
Trichoderma species are
Free living
48
Trichoderma species are common in
Root ecosystem
49
Baculoviruses attack
Insects and other arthropods
50
Baculoviruses used as biocontrol agents mostly belong to genus
Nucleopolyhedrovirus
51
Microbes used for species specific narrow spectrum insecticidal applications
Baculoviruses
52
IPM
Integrated Pest Management
53
Best insecticidal agent when ecologically sensitive area is being treated
Baculoviruses
54
Nodules on roots of legumes
Rhizobium
55
Free living bacterial nitrogen fixers
Azospirillum, Azotobacter
56
Genus which most commonly forms mycorrhiza
Glomus
57
Cyanobacteria examples
Anabaena, Nostoc, Oscillatoria
58
Important biofertilisers in paddy fields
Cyanobacteria
59
Mycorrhiza provides benefits such as
Resistance to plant pathogens, salinity and drought conditions
60
r- selected species have
Large number of progeny with small size (oysters, pelagic fishes)
61
k- selected species have
Less number of offspring with large size (elephant)
62
Biofertiliser for Soyabean crop
Rhizobium

Biology (10 decks)

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