Hello buddy, find the attached.
Laboratory Report (18 pts)
Microscope # ________
I. Macroscopic Observation of Microorganisms
Approx. number of organisms ___450colonies_ Number of
8 different colonies
Colony Type I
Size (diameter in mm)
Margin or Edge
Colony Type II
1. What is a colony?
A colony refers to a visible mass of bacteria from a common bacterial cell growing on a
particular portion of the culture media.
2. Why is it important to characterize each colony type?
It is important to characterize each colony type on the culture media for proper identification
of the bacteria.
II. Microscopic Observation of Microorganisms
1. Sketch the cellular morphologies of the organisms observed on the commercially
Light microscopes can be able to achieve a maximum magnification of X1000 when the oil of
the immersion objective lens is used. The oil of immersion objective lens can achieve the highest
magnification because the oil of immersion added to the smear reduces the refractive index
effect hence maximizes the degree of magnification.
2. Why must care be taken to not substitute another oil for the immersion oil when making
This is because the oil of immersion has the same refractive index as that of glass but other oils
may have refractive...
15 Million Students Helped!
Sign up to view the full answer