WorksheetsMicrobes in Human Welfare - Quiz I
Total questions: 17
Worksheet time: 9mins
The dough used for making bread is fermented by
bacteria
Yeast
fungi
algae
Which of the following bacteria convert milk into curd?
Propionibacterium
Lactobacillus
Streptococcus
Bacillus
The large vessels for growing microbes on an industrial scale are called
Petri dish
digestors
biogas vessel
fermentors
Which of the following organisms is used in the production of beverages?
Penicillium notatum
Saccharomyces cerevisiae
Aspergillus niger
Clostridium butylicum
The chemical substances produced by some microbes which can kill or retard the growth of other microbes are called –
toddy
lactic acid
antibiotics
ethanol
Which of the following antibiotics was discovered first?
Streptomycin
Neomycin
Erythromycin
Penicillin
Citric acid is produced by –
Acetobacter aceti (a bacterium)
Aspergillus niger (a fungus)
Yeast (a fungus)
Streptococcus (a bacterium)
Which of the following bacteria has a role in removing clots from our blood vessels?
Bacillus thuringiensis
Clostridium butylicum
Streptococcus
Lactobacillus
Cyclosporin A is produced from –
Trichoderma polysporum (a fungus)
Bacillus (a bacterium)
Aspergillus (a fungus)
all of these
The primary treatment of sewage involves –
digestion
decomposition
sedimentation and filtration
none of these
The amount of oxygen required by the microbes in the decomposition of organic matter is called –
chemical oxygen demand
biochemical oxygen demand
total oxygen demand
dissolve oxygen
Biogas contains –
CO2
CH4
H2S
all of these
Baculoviruses (Nucleopolyhedrovirus) does not show
Host specify
Narrow spectrum applications
Effects on non-target pathogens
Utility in IPM programme
Which of the following is a commercial blood cholesterol lowering agent?
Cyclosporin A
Statin
Streptokinase
Lipases
Streptokinase, a clot buster used to remove clots from blood vessels of patients of myocardial infraction is obtained from
Streptomyces
Genetically modified Streptococcus bacteria
Mortierella renispora
Candida lipolytica
A biocontrol agent to be a part of an integrated pest management should be
Species-specific and inactive on nontarget organisms
Species-specific and symbiotic
Free living and broad spectrum
Narrow spectrum and symbiotic
Which of the following can be used as a biocontrol agent in the treatment of plant disease?
Trichoderma
Chlorella
Anabaena
Lactobacillus
