Microbiology Lab Report
Dr.Okalate
October 17, 2011
Introduction: Bacteria were first find by Antonie van Leeuwenkoek in 1676, using a microscope with his hold technical design. During the 1600s the technology of microscopes were non as succeed as they be in the present so his findings were not accurate of much but he could tell this was a different type of cell that carried a disease or was harmful. Bacteria are large domain of prokaryotic microorganisms and their aloofness is typically a few micrometers in size. They have a variety of shapes from rods to spirals, bacterium is present on most of the humanitys habitat, everywhere you look, go, see there is bacteria. Thats wherefore its so important to wash your hands or use hand sanitizer, it grows in numerous places. Also bacteria cells do not contain a cell cell nucleus and rarely harbor membrane-bound organelles, unlike eukaryotes which they all contain a nucleus. Bacteria has a wide range variety of metabolous types and that is how they are defined using their taxonomy, the three different types are phototrophs (sun light), litotrophs (inorganic compounds), and organotrophs (organic compounds). In the lab we tested our very own bacteria off of our tongue and smeared it on a blood nutrient agar-agar plate, sheep blood to be exact.
We collect the bacteria from the inside of the address and grow them in specially prepared petri helpes. Blood agar it contains .5% sheeps blood is an excellent medium for supplying bacteria with nutrients and an surroundings in which we can see them grow.
Materials:
Blood Agar dish
Cotton Swab Stick
Marker
Microscope
Incubator
Procedures:
1. Prepared petri dishes should be refrigerated until use and always stored upside down. This keeps condensation which forms in the lid from drop onto and disrupting the bacteria growing surface.
2.When ready to use, let dishes come to path temperature before taking samples.
3.Collect bacteria from each hole using...If you want to get a full essay, order it on our website: Orderessay
If you want to get a full essay, wisit our page: write my essay .
No comments:
Post a Comment