#1
What part of the microscope is used to adjust the amount of light passing through the specimen?
Objective lens
Diaphragm
Eyepiece lens
Condenser
#2
Which part of the microscope holds the objective lenses and can be rotated to change magnification?
#3
What is the function of the iris diaphragm on a microscope?
To hold the objective lenses
To adjust the magnification
To adjust the intensity and size of the light beam
To focus the specimen
#4
Which microscope technique is commonly used for observing living cells in culture?
Bright-field microscopy
Dark-field microscopy
Phase-contrast microscopy
Fluorescence microscopy
#5
Which part of the microscope is used to support the slide containing the specimen?
Objective lens
Stage
Eyepiece lens
Diaphragm
#6
Which type of microscope is commonly used to observe live specimens?
Transmission electron microscope
Scanning electron microscope
Fluorescence microscope
Phase-contrast microscope
#7
What is the function of the coarse adjustment knob on a microscope?
To focus the specimen under low magnification
To focus the specimen under high magnification
To adjust the amount of light passing through the specimen
To switch between different objective lenses
#8
What is the purpose of immersion oil in microscopy?
To increase magnification
To decrease magnification
To improve resolution
To protect the objective lens
#9
Which microscope technique is commonly used to study the surface of a specimen in three dimensions?
Bright-field microscopy
Phase-contrast microscopy
Scanning electron microscopy
Fluorescence microscopy
#10
Which microscope technique relies on the bending of light to create contrast in transparent specimens?
Bright-field microscopy
Dark-field microscopy
Phase-contrast microscopy
Differential interference contrast microscopy
#11
What is the purpose of the mechanical stage on a microscope?
To adjust the focus of the specimen
To hold and move the specimen
To adjust the intensity of light
To rotate the objective lenses
#12
What is the purpose of the immersion objective lens on a microscope?
To magnify the specimen
To focus the light on the specimen
To enhance resolution
To decrease distortion
#13
Which microscope technique is used to observe internal structures of a specimen without staining?
Bright-field microscopy
Phase-contrast microscopy
Dark-field microscopy
Differential interference contrast microscopy
#14
What is the maximum magnification achievable with a light microscope?
#15
What does the term 'resolution' refer to in microscopy?
The ability to distinguish between two adjacent objects
The ability to magnify an object
The ability to move the stage precisely
The ability to adjust the intensity of light
#16
Which microscope technique utilizes a beam of electrons to visualize specimens?
Light microscopy
Fluorescence microscopy
Transmission electron microscopy
Phase-contrast microscopy
#17
Which type of microscope is suitable for observing the detailed structure of cell organelles?
Bright-field microscopy
Transmission electron microscopy
Fluorescence microscopy
Phase-contrast microscopy
#18
What is the primary difference between a compound microscope and a stereo microscope?
Magnification power
Number of objective lenses
Type of illumination
Depth perception
#19
Which microscope technique is best suited for observing fluorescently labeled molecules within a cell?
Bright-field microscopy
Phase-contrast microscopy
Fluorescence microscopy
Scanning electron microscopy