From there we managed to distinguish the packed cells

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From there, we managed to distinguish the packed cells to more isolated cells. This was toobtain the pure culture of one type of bacteria only, if this was applied to many other cellscombined. There were no colours appeared on the cell. The cells appeared round and big insize, they also appeared in clumps thus it was quite hard to distinguish between twocombining cells.
Image 2: Streak plate of nutrient broth culture ofSerratia marcescensTotal count: 93Image 2 on the other hand showed the preparation of streak plate technique ofSerratiamarcescens. From the image, we managed to calculate the total counts of single and isolatedcells which were 93 counts. We were also able to see the red pigment of the cell. This wasbecause the cell produced red pigments at optimum temperature of its growth. Compared toimage 1, this cell produced a much smaller sphere of cells but also can occur in clumps whichwas hard to differentiate.B.THE POUR PLATE METHODImage 3: Pour plate of combination ofE.coliandSerratia marcescensnutrient broth culturesTotal count: too numerous to count (TNTC)Image 3 depicted of preparation of the combination of two bacterial cells. From the image,we actually could not identify the isolated and single ones as we had the wrong technique of
preparing the pour plate method. It was supposed to be distinguished by taking up the dilutedbacterial cells into another dilution. But instead, every dilution was originated from the brothculture for three consecutive times. Thus, a proper reading could not be obtained.C.THE SPREAD PLATE METHODImage 4: Spread plate of combination ofE.coliandSerratia marcescensnutrient brothculturesTotal count: too numerous to count (TNTC)Image 4 visualized the preparation in which we had prepared a combination of these two cellson an agar plate together. In this method too we could not get the technique right as werepeated each trials with a new broth culture. Thus we could not get a distinguishable countof the bacteria from each of the respective petri dish.

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Term
Summer
Professor
dr aziyah
Tags
Bacteria, Agar plate, Petri dish, Serratia marcescens, Serratia, Nutrient broth culture

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