Microbiology

Front 1

carbon

Back 1

to synthesize organic components

Front 2

energy source

Back 2

needed for living processes which require energy

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nitrogen

Back 3

for synthesis of proteins and nucleic acid

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phosphorus

Back 4

for synthesis of phospholipids and nucleic acids

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sulfur

Back 5

for synthesis of some proteins

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trace elements

Back 6

boron, nickel, copper, zinc, colbalt,
and more their
function is many are cofactors for enzymes.

Front 7

water

Back 7

function is: 1.comprises 80% of cytoplasm 2.solvent and suspending agent 3.required for chemical reactions

Front 8

list 5 elements that microbes require in moderate amounts.

Back 8

scimp: sodium, calcium, iron, magnesium, potassium.

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autotroph

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self nurishers they can live on CO2 from the air if they need to because CO2 is all they require.

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heterotroph

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these are organic they require 1 or more organic molecues for carbon source.

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describe each of the terms and identify each of the microbes found in each: five: chemotroph

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oxidize inorganic or organic molecules for energy source

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phototroph

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use light as energy source

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chemoautotrophs

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iron bacteria, and nitrogen bacteria in soil: Use CO2 as carbon source and oxidize inorganic molecules for energy.

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chemoheterotrophs

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most bacteria, fungi, and protozoa: Use organic molecules as carbon source and oxidize organic molecules for energy

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photoheterotrophs

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purple nonsulfur bacteria: require one or more organic molecules as carbon source. Light is energy source

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describe the content and use of the next: five:
chimically defined media

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exact composition is known: example:glucose agar: most nutrients supplied as salts and provide minimal nutritional requirements for some microbes.

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complex media

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contain one or more complex nutrients such as peptone or protein:example: nutient agar: USE: to cultivate different microbes that need nutrient agar with combined nutrients.

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selective media

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contains chemicals that inhibit some groups while permitting others to grow: example: MacConkey agar: USE: to seperate some microbes from others.

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differential media

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contains carbohydrate and ph indicator.example: EMB agar; USE:allows visible distinction of different groups.

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enriched media

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contains complex medium plus plant or animal extract example: blood agar USE: to cultivate fastidious heterotrophs which have complex nutritional requirements