microorganisms : friend and foe Flashcards
Who discovered pasteurisation
louis Pasteur
which microorganism should be only seen through an electron microscope
virus
what are the categories of microorganisms
bacteria,algae,protozoa,fungi and virus
who discovered the vaccine for small pox and when
edward jenner , 1798
who found penicillin and when
Alexander fleming , 1929
what microorganism is used in the making of alcohol
yeast
which microorganism converts the atmospheric nitrogen into soluble form of nitrogen
rhizobium and cyanobacteria
what are disease causing microorganisms known as
pathogens
what is pasteurization
pasteurization is boiling of milk to high temperature for 15 to 30 seconds and immediately cooling them off and storing it
what are some examples of antibiotics
streptomycin , tetracycline and erythromycin
what are comminucable diseases
any disease which can spread through physical contact or using the items which the affected person uses or by food
which bacteria is used in the curling of milk
lactobacillus
which bacteria causes tuberculosis
mycobacterium tuberculosis
which bacteria causes cholera
vibrio cholera
name two common chemical preservatives
sodium benzoate and sodium metabisulphite