Microbes in Human Welfare

Which one of the following is not a biofertilizer

• Rhizobium

• Nostoc

• Mycorrhiza

• Mycorrhiza

The most common substrate used in distilleries for the production of ethanol is 

• soya meal 

• ground gram

• molasses

• molasses

Ethanol is commercially produced through a particular species of 

• Clostridium

• Trichoderma

• Aspergillus

• Aspergillus

Read the following statement having two blanks (1 and 2). 

A drug used for ..... (1) ...... patients is obtained from a species of the organism ....... (2).....The one correct option for the two blanks is.

• Blank – 1	Blank – 2
  Heart	Penicillium

• Blank – 1	Blank – 2
  Organ - transplant	Trichoderma

• Blank – 1	Blank – 2
  Swine flu	Monascus

• Blank – 1	Blank – 2
  Swine flu	Monascus

Which one of the following option gives the correct matching of a disease with its causative organism and mode of infection?

• Disease	Gausative Organisms	Mode of infection
  Typhoid	Salmonella typhi	With inspired air

• Disease	Gausative Organisms	Mode of infection
  Pneumonia	Sreptococcus pneumoniae	Droplet infection

• Disease	Gausative Organisms	Mode of infection
  Elephantiasis	Wuchereria bancrofti	Infected water and food

• Disease	Gausative Organisms	Mode of infection
  Elephantiasis	Wuchereria bancrofti	Infected water and food

A common biocontrol agent for the control of plant diseases is

• Baculovirus

• Bacillius thuringiensis

• Glomus

• Glomus

The common nitrogen -fixer in paddy field is 

• Rhizobium

• Azopirillum

• Oscillatoria

• Oscillatoria

Which of the following is not used as a biopesticide?

• Bacillus thuringiensis

• Trichoderma harzianum

• Nuclear Polyhedrosis virus (NPV)

• Nuclear Polyhedrosis virus (NPV)

A person likely to develop tetanus is immunised by administering

• dead germs

• preformed antibodies

• wide spectrum antibiotics

• wide spectrum antibiotics

Biochemical Oxygen Demand (BOD) in a river water

• remains unchanged when algal bloom occurs

• has no relationship with the concentration of oxygen in the water

• gives a measure of Salmonella in the water

• gives a measure of Salmonella in the water