microorganisms

spirogyra

algae

chlamydomonas

algae

rhizobium

bacteria

lactobacillus

bacteria

bread mould

fungi

penicillum

fungi

coronavirus

virus

HIV

virus

bacterophage

virus

amoeba

protozoa

paramecium

protozoa

aspergillus

fungi

cyanobacteria

blue-green algae

yeast

fungi (unicellular)

microorganism used in baking/brewing

yeast

microorganism used in prepartion of curd

lactobacillus

microorganisms definition

living organisms of microscopic size and cannot be seen with the naked eye

communicable diseases

infectious diseases which are transmitted from the environment; through air, water, food or by contact with infected organism

carriers

carry the disease causing microorganisms

pathogens

disease causing microorganisms

method of preserving meat/fish

salt

method of preserving jams/jellies or squashes

sugar

pasteurisation definition

milk is heated to about 70 degrees celcius for 15->30 secs and then suddenly chilled and stored. this prevents growth of microorganisms. discovered by louis pasteur

fermentation definition

conversion of sugar into alchohol

penicillin discovered by

Alexander Fleming

vaccine for small pox

Edward Jenner

tuberculosis

causative organism -> bacteria

mode of transmission -> air

measles

causative organism -> virus

mode of transmission -> air

chicken pox

causative organism -> virus

mode of transmission -> air/contact

polio

causative organism -> virus

mode of transmission -> air/water

cholera

causative organism -> bacteria

mode of transmission -> water/food

typhoid

causative organism -> bacteria

mode of transmission -> water

hepatitus A

causative organism -> virus

mode of transmission -> water

malaria

causative organism -> protozoa

mode of transmission -> mosquito

dengi

causative organism -> virus

mode of transmission -> mosquito

citrus canker

causative organism -> bacteria

mode of transmission -> air

rust of wheat

causative organism -> fungo

mode of transmission -> air, seeds

yellow vein mosaic (of bhindi//okra)

causative organism -> virus

mode of transmission -> insect

anthrax causing bacillud anthracis

robert koch