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Does a daily dose of penicillin affect the number of bacteria in an experiment?
Wiki User
∙ 12y ago
Yes
Wiki User
∙ 12y ago
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Minimum number of bacteria to be visible?
Refer to the lab experiment to get answer.
How does the number of insects that fall into the liquid affect the number of these useful bacteria?
the number of bacteria will increase if they amounts of bugs falling in increases
Darren is trying to count the number of bacteria on a piece of bread with a magnifying glass What is a likely source of error in this experiment?
Darren!
Why penicillin cannot kill virus?
The antibiotics interfere with chemical reactions that bacteria need to survive, but that human cells do not employ. In penicillin, a chemical binds to the enzymes that are supposed to help in the maintenance of the bacterial cell walls. So it impedes the repair process until finally the cell wall fails and the bacterium dies. Human cells do not use those enzymes.
What can penicillin cure?
I think that it treats many things. One example is strep troat.
In a medical experiment the number of bacteria is halved every hour. What type of function represents this pattern?
Exponential Decay - Apex
What is the variables in this experiment the weight of the rider affect the number of sways does in the playground?
It's a pendulum. The length of the rope also influences the number of sways.
How do you determine the number of outcome in an experiment?
How to determine the number of outcome in an experiment ?
What is the probability of rolling an even number or a number less than 4?
The answer depends on what the experiment is.The answer depends on what the experiment is.The answer depends on what the experiment is.The answer depends on what the experiment is.
Total possible outcomes?
Is the number of all possible outcomes of an experiment. The number depends on the experiment.
How did alexander Fleming create penicillin in 19281929?
On the morning of September 3rd, 1928, he was having a clear up of his cluttered laboratory. he was sorting through a number of glass plates which had previously been coated with bacteria as part of his research, one of the plates had mould on it. The mould was in the shape of a ring and the area around the ring seemed to be free of the bacteria. The mould was penicillium notatum.
How is mutation diagnosed?
In Microbiology, we usually identify mutated bacteria/mutants/mutated DNA by using a number of methods, such as: 1.) Positive selection - For example, we want to identify a mutant bacteria that are resistant to antibiotics, such as say, penicillin, a beta-lactam antibiotic. We plate the bacteria in a medium that contains penicillin, if the bacteria is from a pure culture known to be penicillin-sensitive then we could expect that there will be no growth, if there is growth however, we could say that bacteria is mutated and most likely contains the enzyme beta-lactamase. 2.)Negative selection - This process selects a cell that cannot perform a certain function, we ofen times use the technique of replica plating. For example, we plate a pure culture in a medium with histidine, all of these will form colonies. Next is, we transfer the colonies using a sterile velvet into two or more plates, one contains histidine, the other does not. If a colony that is present in the histidine medium is absent in the other medium, we can assume that bacteria has lost its ability to synthesize it's own histidine.
