WorksheetsMicroscopy
Total questions: 20
Worksheet time: 26mins
Find total magnification for:
Eyepiece = 10X
Objective lens = 4X
4x
6x
14x
40x
Eyepiece = 15X
Objective lens = 100X
Which of the following does NOT describe a microscope? It _________.
decreases the size of small objects
increases the size of small objects
makes small objects appear larger
makes faraway objects look closer
Which of the following is an illuminating part of the compound microscope?
Arm
Base
Mirror
Nosepiece
A light microscope is also referred to as a?
Electron microscope
Compound microscope
Scanning problem microscope
X-ray
Why is it important that an object is very small or thin in light microscopy?
Light needs to transmit through the sample.
The object needs to go into the objective lens.
It needs to be heated quickly.
None of the choices; the object should be large.
Base your answer to the following question on the diagram and on your knowledge of biology.
testing a specimen for amino acids
determining the pH of a specimen
measuring the photosynthetic rate in a specimen
preparing a wet mount of a specimen
When light is converted into heat, we can say that the light is ____________
Refracted
Reflected
Absorbed
Transmitted
A type of microscopy that uses fluorescent dye that emits fluorescence when illuminated with ultraviolet
radiation.
Electron microscopy
Fluorescence microscopy
Phase contract microscopy
Dark-field microscopy
Microscopy that is ideally used to illuminate unstained samples causing them to appear brightly lit against a dark background.
Electron microscopy
Fluorescence microscopy
Phase contract microscopy
Dark-field microscopy
Which statement is true for Bright-field microscopy?
Both diffracted and undiffracted lights are collected by the objective lens and thus, producing a very bright background.
The specimens are not stained with dyes.
Objective lens collects only the diffracted light that produces a bright image and background
Bright-field microscope needs more light compared to other types of microscope.
What type of microscope produces such image?
Bright-field Microscope
Dark-field Microscope
Phase Contrast Microscope
Electron Microscope
Which image is produced by phase-contrast microscope?
A
B
C
None
A microscope that uses a beam of accelerated electrons as a source of illumination
Electron microscopy
Fluorescence microscopy
Phase contract microscopy
Dark-field microscopy
Three essential systems of Transmission Electron Microscope.
Which is the correct order for SEM sample preparation?
Dehydration, Fixation, Drying, Metal coating
Metal coating, Dehydration, Fixation, Drying
Fixation, Dehydration, Drying, Metal coating
Drying, Dehydration, Fixation, Metal coating
