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The Microscope
Biology microscope terms
Question | Answer |
---|---|
When observing a specimen using the high power or oil immersion objective one should focus with the _____ ______ knob only. | Fine Adjustment |
The part of the mechanical stage apparatus that holds the slide in position? | Stage clips |
The part of the microscope that holds the slide in position and enables one to move the slide around the stage? | Mechanical stage |
The foundation of the microscope? | Base |
If the specimen is in focus using one objective and requires very little adjustment when switching to another objective, the microscope is described as being? | Parfocal |
The objective with a magnification of 100x? | Oil immersion |
The highly resistant cell structures that may be observed as clear structures inside some bacteria? | Endospores |
The space occurring between the end of the objective and the surface of the slide is called the ______ ______. | working distance |
The area on the slide observed when looking through the ocular is called the ______ __ ______. | Field of view |
The ocular has a magnification of __x | 10 |
______ ______ is calculated by multiplying the power of the ocular by the power of the objective in use. | Total magnification |
Type microscope that utilizes visible light to illuminate the specimen being studied? | Light microscope |
The microscope should always be carried with? | Two hands |
If the 10x objective is in use the total magnification is ___x? | 100 |
A long filamentous appendage seen on some bacteria? | Flagellum |
Curved or helical bacteria? | Spirals |
A ___ _____ consists of the specimen suspended in fluid beneath a coverslip. | wet mount |
The objectives are located on the revolving ____ _____. | nose piece |
The part of the microscope that concentrates the light on the specimen? | condenser |
A thick, colorless, gelatinous layer occurring around the cell wall of some bacteria? | capsule |
The part of the microscope that regulates the intensity of light on the specimen? | Iris diaphragm |
Bacteria are measured in units called? | Micrometers |
Type of microscope that utilizes electrons to illuminate the specimen being viewed? | Electron |
Type of microscope that illuminates the specimen in a blackened field? | Dark field |
Substance that is placed on the slide when focusing with the 100x objective? | Immersion oil |
The part of the microscope that connects the base with the ocular, revolving nose piece and the stage? | Arm |
The objective with a magnification of 10x? | Low Power |
As one increases the magnification the working distance gets _______. | Smaller |
The cylinders located on the revolving nose piece that contain lenses of various magnifications are called _________. | Objectives |
The _____ _________ knob is used first when focusing with the scanning or low power objectives. | course adjustment |
The "comma" shaped bacterium? | Vibrio |
Position in which the stage should be placed before storing the microscope? | Down |
The part of the microscope that is also called the eyepiece? | Ocular |
The part of the microscope on which the slide is placed for observation? | Stage |
Before storage the ________ objective should be placed in using position | Scanning |
Immersion oil prevents the ________ of light? | Refraction |
Before increasing the magnification, the object to be viewed should be placed in the ______ of the field. | Center |
Objective with a magnification of 40x? | Scanning |
The low power objective has a magnification of __x? | 10 |
The high power objective has a magnification of __x? | 40 |
The lenses of the microscope should be cleaned with ____ _____ only. | Lens paper |
A round or spherical bacterium? | Coccus |
An elongated or rod shaped bacterium? | Bacillus |
The scanning objective has a magnification of __x. | 4 |
The total magnification when using the scanning objective is __x. | 40 |
The type of microscope that utilizes two sets of magnifying lenses? | Compound microscope |