Micro Lab Midterm (Bachoon) || Answered Perfectly 100%.
What is responsible for the most deaths worldwide? correct answers Infectious diseases caused
by microbes
What abounds in the air around us and on all of the surfaces in the lab? correct answers
Microorganisms
Aseptic Technique correct answers Any technique designed to keep unwanted microorganisms
from contaminating sterile materials
What is used in order to transfer microbial cultures? correct answers Inoculating loops or needles
What are the 6 steps in the Aseptic procedure? correct answers 1- Heat loop until red-hot
2- Shake tube to disperse organisms
3- Take off cap and flame mouth of tube
4- Place loop into tube
5- Remove loop and flame mouth of tube again
6- Close tube
What is the proper way to label your Petri plate? correct answers Write your name, the date, and
the name or initials of the organism
How are plates ALWAYS stored? correct answers Inverted inoculated portions (upside down)
Some parts of the body are supposed to be devoid of what? What is one specific area? correct
answers Bacterial flora; cerebrospinal fluid
What is Total Magnification (TM)? correct answers The use of both objective lenses and ocular
lenses
, What is the result of refraction? correct answers A loss of light collected by the lenses acts to
decrease the resolution or clarity of the image
How do you achieve the best resolution? correct answers The path of light rays from their source
through the specimen and into the objective magnifying lenses must be MINIMIZED
Base of microscope correct answers Used in carrying the microscope; houses the light source
Light source of microscope correct answers Provides light to specimen
Arm of microscope correct answers Used in carrying along with the base
Stage of microscope correct answers Holds the microscope slide in position
Coarse adjustment knobs of microscope correct answers Used with scan and lower power
objective lenses
Fine focus adjustment knobs of microscope correct answers Used with dry and oil immersion
lenses
Mechanical stage adjusters of microscope correct answers Allows the movement of the stage
from left to right and forward to backward
Condenser of microscope correct answers Collects and concentrates light emitted from the light
sources into a high beam before passing through the specimen
Iris Diaphragm of microscope correct answers Located within the condenser; tightens or widens
the beam of light emitted from the condenser
What is responsible for the most deaths worldwide? correct answers Infectious diseases caused
by microbes
What abounds in the air around us and on all of the surfaces in the lab? correct answers
Microorganisms
Aseptic Technique correct answers Any technique designed to keep unwanted microorganisms
from contaminating sterile materials
What is used in order to transfer microbial cultures? correct answers Inoculating loops or needles
What are the 6 steps in the Aseptic procedure? correct answers 1- Heat loop until red-hot
2- Shake tube to disperse organisms
3- Take off cap and flame mouth of tube
4- Place loop into tube
5- Remove loop and flame mouth of tube again
6- Close tube
What is the proper way to label your Petri plate? correct answers Write your name, the date, and
the name or initials of the organism
How are plates ALWAYS stored? correct answers Inverted inoculated portions (upside down)
Some parts of the body are supposed to be devoid of what? What is one specific area? correct
answers Bacterial flora; cerebrospinal fluid
What is Total Magnification (TM)? correct answers The use of both objective lenses and ocular
lenses
, What is the result of refraction? correct answers A loss of light collected by the lenses acts to
decrease the resolution or clarity of the image
How do you achieve the best resolution? correct answers The path of light rays from their source
through the specimen and into the objective magnifying lenses must be MINIMIZED
Base of microscope correct answers Used in carrying the microscope; houses the light source
Light source of microscope correct answers Provides light to specimen
Arm of microscope correct answers Used in carrying along with the base
Stage of microscope correct answers Holds the microscope slide in position
Coarse adjustment knobs of microscope correct answers Used with scan and lower power
objective lenses
Fine focus adjustment knobs of microscope correct answers Used with dry and oil immersion
lenses
Mechanical stage adjusters of microscope correct answers Allows the movement of the stage
from left to right and forward to backward
Condenser of microscope correct answers Collects and concentrates light emitted from the light
sources into a high beam before passing through the specimen
Iris Diaphragm of microscope correct answers Located within the condenser; tightens or widens
the beam of light emitted from the condenser
