So for biology EEI my topic is about growth rates of microorganisms. I had 12 petri dishes of nutrient agar jelly. I had three just plain nutrient agar jelly (with no sugar). I had three nutrient agar jellies with Sucrose. I had three nutrient agar jellies with Lactose. I had three nutrient agar jellies with Glucose. I put them in the incubator for about a week set on 35 degrees. But before putting them in the incubator I swabbed E.Coli on all of them. The results showed that sucrose and glucose had more of the bacteria colonies. When my hypothesis said that glucose would have the most. Why did this happen? And why wasn’t it more affected to lactose. But out of all of them the control had the biggest colonies why? When it had no added sugar? sorry if it's confusing understand.
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It is simply because glucose is a simpler sugar than lactose or sucrose and as such, it can easily be consumed by the bacteria. Bacteria are just like humans. They won't want to stress their self, so they go for the already broken sugar(glucose), leaving the hard one, lactose or sucrose.
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