From which micro organisms penicillin is being manufactured?
Bacteria
Algae
Fungi
Virus
Name the activity by which the leaves of tea, tobacco etc are fermented.
Bacillus megaterium
Psedomonas
Methanogens
Nitrosomonas
Name two micro organisms which are used to make antibiotics.
Bacteria, virus
Bacteria, fungi
Virus, fungi
Fungi, algae
Name a good preservative.
Oxalic acid
Vinegar
Butyl alcohol
Methyl alcohol
Name the species of bacteria which cause the disease 'citrus canker'
Xanthomonas citri
Xanthomonas oryzae
Pseudomonas spp
Solanacearum
Which convert complex proteins in the dead bodies of plants and animals into ammonia, nitrites and nitrates?
Name a unicellular, saprophytic fungus?
Yeast
Bread mould
Bacilli
Cocci
Name the rod shaped bacteria
Spirillum
Vibrio
Name a nitrogen-fixing bacteria
Bacillus ramosus
Nitro bacter
Acetobacter
Nodules are responsible for nitrogen fixation. Name the bacteria present inside the root nodules.
Rhizobium
Clostridium
Nitrobacter