Microbiology UTA - Lab Practical 1
Exam Questions and answers
Identify the structure indicated by the red arrow... - -fine focus adjustment
knob
- Identify the structure indicated by the red arrow... - -field diaphragm lever
- Which of the following objectives should be used with immersion oil... - -
100x objective
- Compound microscopes are able to maintain proper focus of a specimen
when moving from low power to higher power magnification due to a
property known as... - -parfocal
- What two factors determine resolution... - -quality of the lens and the
wavelength of light used
- A photo is listed as having a total magnification of 400x. Which of the
following objectives was used in order to take the photo with a microscope
that had 10x oculars... - -the 40x objective
- Adjusting the amount of light that enters the substage condenser allows
greater control of contrast of the specimen being observed. This is controlled
by adjusting the field diaphragm lever... - -false
- The total magnification obtained using 100x objective with oil immersion
is.. - -1000x
- What is the most important mechanism for adjusting light in the
microscope... - -aperture diaphragm control
- The virtual image of a specimen viewed in the microscope is reversed and
inverted... - -true
- To retrieve a sample from a culture tube with an inoculating loop, the cap
of the tube is... - -removed and held with the fingers of the loop hand
- If you transfer bacterial growth from a broth to an agar plate but nothing
grows after incubation, what may have occurred... - -The loop may have
been too hot when making the transfer
- Indicate the correct order of steps for a broth to agar plate transfer...
Exam Questions and answers
Identify the structure indicated by the red arrow... - -fine focus adjustment
knob
- Identify the structure indicated by the red arrow... - -field diaphragm lever
- Which of the following objectives should be used with immersion oil... - -
100x objective
- Compound microscopes are able to maintain proper focus of a specimen
when moving from low power to higher power magnification due to a
property known as... - -parfocal
- What two factors determine resolution... - -quality of the lens and the
wavelength of light used
- A photo is listed as having a total magnification of 400x. Which of the
following objectives was used in order to take the photo with a microscope
that had 10x oculars... - -the 40x objective
- Adjusting the amount of light that enters the substage condenser allows
greater control of contrast of the specimen being observed. This is controlled
by adjusting the field diaphragm lever... - -false
- The total magnification obtained using 100x objective with oil immersion
is.. - -1000x
- What is the most important mechanism for adjusting light in the
microscope... - -aperture diaphragm control
- The virtual image of a specimen viewed in the microscope is reversed and
inverted... - -true
- To retrieve a sample from a culture tube with an inoculating loop, the cap
of the tube is... - -removed and held with the fingers of the loop hand
- If you transfer bacterial growth from a broth to an agar plate but nothing
grows after incubation, what may have occurred... - -The loop may have
been too hot when making the transfer
- Indicate the correct order of steps for a broth to agar plate transfer...
