ex 10: oxidation of a carbon source by microorgansisms Flashcards

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1
Q

what is the most oxidized state of carbon

A

co2

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2
Q

how is carbon dioxide reduced

A

photosyntehsis

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3
Q

co2 is transformed into what

A

carbohydrates, which can be converted back

irgabuc compounds such as protein amino acids

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4
Q

why was NaoH used

A

as a co2 sink to measure how much co2 was obtained via aerobic respiration

indirectly can measure the amount of co2 that was evolved by determining how much naoh was used in reactin of

naoh + co2 = na2co3 + h20

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4
Q

determine the amount of NaOh ued

A

find initial moles

C=n/v
vxc = n

find the moles of hcl used
volume used x C (M) =

do final moles - initial moles

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4
Q

what was in the amended one

A

glucose

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4
Q

method

A

glucose added to amended
naoh added using a tape and applicator stick stuck to cap
not added in, just sat on top of soil

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5
Q

why dont we want Naoh tospill

A

will kill microorgansmis

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5
Q

determine co2

A

the answer from above x22mg/ml

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6
Q
A
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