LSUE MICRO LAB EXAM 1 Exam Questions With
Complete Solutions.
The limit of resolution of the unaided human eye is ______.
0.2 mm
For the typical light microscope, the limit of resolution is ______.
0.2 micrometers
Brainpower
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When carrying a microscope, one hand should be under the _____ of the microscope to support its
weight, and one hand should be on the _____ for balance.
base
arm
As the power of the objective lens increases, the working distance ______.
decreases
Condenser adjustments increase _______ without affecting the bulb life.
illumination
The _______ lens provides the highest magnification and has the shortest working distance.
oil immersion
The coarse focus knob should only be adjusted when using the _______ lens.
low power
The coarse and fine focus knobs adjust the distance between ___________.
the stage and the objective lens
A microscope that maintains focus when the objective magnification is increased is called _____.
parfocal
Which type of specimens is darkfield microscopy preferred over brightfield microscope?
live unstained specimens or thin cells
What is best observed using phase-contrast microscopy?
motility of cells
What organisms were formerly known as "blue-green algae"?
Complete Solutions.
The limit of resolution of the unaided human eye is ______.
0.2 mm
For the typical light microscope, the limit of resolution is ______.
0.2 micrometers
Brainpower
Read More
When carrying a microscope, one hand should be under the _____ of the microscope to support its
weight, and one hand should be on the _____ for balance.
base
arm
As the power of the objective lens increases, the working distance ______.
decreases
Condenser adjustments increase _______ without affecting the bulb life.
illumination
The _______ lens provides the highest magnification and has the shortest working distance.
oil immersion
The coarse focus knob should only be adjusted when using the _______ lens.
low power
The coarse and fine focus knobs adjust the distance between ___________.
the stage and the objective lens
A microscope that maintains focus when the objective magnification is increased is called _____.
parfocal
Which type of specimens is darkfield microscopy preferred over brightfield microscope?
live unstained specimens or thin cells
What is best observed using phase-contrast microscopy?
motility of cells
What organisms were formerly known as "blue-green algae"?
