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The Effects Of Antibiotics On Bacterial Growth
Beginning of essay
Biology II
Bacteria are the most common and ancient microorganisms on earth. Most
bacteria are microscopic, measuring 1 micron in length. However, colonies of
bacteria grown in a laboratory petri dish can be seen with the unaided eye.
There are many divisions and classifications of bacteria th ....
Middle of essay
....ts water). Ethyl alcohol is then applied to the medium; the
bacteria will either preserve the blue color of the original dye or they will
obtain a red hue. The blue colored bacteria are gram-positive; the red bacteria
are identified as gram-negative.
Bacteria contain DNA (deoxyribonucleic acid) just like all cells.
However, in bacteria the DNA is arranged in a circular fashion rather than in
strands. Bacteria also contain ribosomes which, like in eukaryotic cells,
provide for protein synth.... |
| Number of words: 1287 |
Approximate pages: 5 |
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