microorganisms : friend and foe Flashcards

1
Q

Who discovered pasteurisation

A

louis Pasteur

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2
Q

which microorganism should be only seen through an electron microscope

A

virus

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3
Q

what are the categories of microorganisms

A

bacteria,algae,protozoa,fungi and virus

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4
Q

who discovered the vaccine for small pox and when

A

edward jenner , 1798

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5
Q

who found penicillin and when

A

Alexander fleming , 1929

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6
Q

what microorganism is used in the making of alcohol

A

yeast

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7
Q

which microorganism converts the atmospheric nitrogen into soluble form of nitrogen

A

rhizobium and cyanobacteria

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8
Q

what are disease causing microorganisms known as

A

pathogens

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9
Q

what is pasteurization

A

pasteurization is boiling of milk to high temperature for 15 to 30 seconds and immediately cooling them off and storing it

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10
Q

what are some examples of antibiotics

A

streptomycin , tetracycline and erythromycin

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11
Q

what are comminucable diseases

A

any disease which can spread through physical contact or using the items which the affected person uses or by food

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12
Q

which bacteria is used in the curling of milk

A

lactobacillus

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13
Q

which bacteria causes tuberculosis

A

mycobacterium tuberculosis

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14
Q

which bacteria causes cholera

A

vibrio cholera

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15
Q

name two common chemical preservatives

A

sodium benzoate and sodium metabisulphite

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16
Q

which is the common disease between cattle and humans

A

anthrax

17
Q

which microorganism causes malaria

A

plasmodium vivax

18
Q

some examples of plant diseases

A

citrus canker , rust of wheat , yellow vein mosaic of okra

19
Q

which process is used in the making of alcohol

A

fermentation