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==Serial dilution== | ==Serial dilution== | ||
: Under the right conditions one Bacteria can divide itself infinetely and pile up a colony of its kind. The procedure of serial dilution (reducing the amount of bacteria in a solution within steps) is for example useful for counting bacteria. | : Under the right conditions one Bacteria can divide itself infinetely and pile up a colony of its kind. The procedure of serial dilution (reducing the amount of bacteria in a solution within steps) is for example useful for counting bacteria. In this way we tried isolating the Gluconacetobacter. | ||
'''1. Medium for the Gluconacetobacter:''' | '''1. Medium for the Gluconacetobacter:''' | ||
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:We could observe how | :We could observe how different bacterial and yeast colonies appeared. | ||
==Oil Immersion== | ==Oil Immersion== | ||
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[[File:Oyster mushroom 1week.JPG |500px]] | [[File:Oyster mushroom 1week.JPG |500px]] | ||
==Electric circuit with Soilbacteria== | |||
:Anerobic bacteria that live in the soil oxidate substrates during their metabolism for winning energy. During this exothermic reaction, electrons and protons are freed. In our battery, we placed an anode (graphite, copper, zinc, gold) in the mud and a cathode (differing from the metal of the anode) into water. | |||
The mud container is closed, so there is no air that could take away the electrons. Instead, these would be collected by our anode. | |||
Our protons would search their way through the tube filled with agar that connected the containers, which would act as membrane between those. These then would be caught by our cathode. | |||
[[File:Agar as membrane in microbial battery.JPG |500px]] | |||
[[File:Mikrobielle Batterie.jpg|500px]] | |||
==Photobacter medium== | |||
==Growing Crystals== | |||