like polio and chicken pox are caused by _______
  • Bacteria
  • Fungi
  • Virus
  • Worms
Some medicines obtained from micro-organisms are applied to kill or stop the growth of disease-causing microorganisms. Such medicines are called ______.
  • Antibodies
  • Antibiotics
  • Antiseptics
  • All of the above
A common preservative used in jam and pickles is
  • Sodium benzoate
  • Nitric acid
  • Sodium Chloride
  • Copper Sulphate
Rhizobium found in root nodules of leguminous roots is an
  • Atmospheric Carbon fixer
  • Atmospheric Oxygen fixer
  • Atmospheric Nitrogen fixer
  • All of the above
Lactobacillus is commonly found in
  • Cake
  • Curd
  • Bread
  • All of the above
The process of conversion of sugar into alcohol by yeast is called
  • Fermentation
  • Pasteurisation
  • Alcoholism
  • All of the above
The pores in the bread is due to gas bubbles of
  • Oxygen
  • Nitrogen di oxide
  • Nitrogen
  • Carbon di oxide
Deliberately injecting weak microbes into a healthy body and producing antibodies to fight against strong microbes is called _______
  • Medication
  • Antibiotics
  • Vaccination
  • All of the above
The microbe for Malaria is carried by
  • Male Anopheles mosquito
  • Female Anopheles Mosquito
  • Male Aedes mosquito
  • Female Aedes mosquito
Alcohol is produced with the help of
  • sodium chloride
  • yeast
  • nitrogen
  • carbon dioxide
Which of the following drug is an antipyretic?
  • Insulin
  • Alcohol
  • Streptomycin
  • Paracetamol
What helps in the rise of bread or dosa dough?
  • Heat
  • Grinding
  • Growth of yeast cells
  • Low pressure
The status of algae in the aquatic food chain is
  • consumers
  • producers
  • host
  • small in size
The rod shaped bacteria are called
  • Bacillus
  • Coccus
  • Vibrio
  • Spirillum
Bacteria present in root nodules of pea
  • Coli
  • Plasmodium
  • Rhizobium
  • Penicillin
The microorganism which contains chlorophyll
  • Virus
  • Fungus
  • Algae
  • All
The disease caused by protozoa is
  • tuberculosis
  • polio
  • typhoid
  • malaria
Which cannot fix atmospheric nitrogen in the soil?
  • Rhizobium
  • Clostridium
  • Azotobacter
  • Penicillin
The disease caused by fungi is
  • measles
  • chicken pox
  • polio
  • ringworm
Which bacteria helps in settling of curd?
  • Rhizobium
  • Lactobacillus
  • Vibriocholarae
  • Bacillus
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