Microscope Parts & Function Flashcards

Questions and Answers

What is the main function of the ocular lens?

Moves the specimen slide around

Focuses the image from the objective into your eye (correct)

Houses the objectives

Connects the eyepiece with the objective lens

What does the eyepiece tube connect?

Eyepiece with the objective lens

Which of the following objective lenses provides the highest magnification?

100x (correct)

10x

40x

What part of the microscope allows the objective lenses to be rotated?

Revolving nosepiece Signup and view all the answers

What is the function of the arm of the microscope?

Connects to the base and supports the eyepiece tube and nosepiece Signup and view all the answers

What is the purpose of the central aperture?

Allows the base light to reach the stage Signup and view all the answers

What is placed on the stage?

Specimen slide Signup and view all the answers

What do the mechanical stage knobs do?

Move the specimen slide around Signup and view all the answers

Which knobs would you use for coarse focusing?

Coarse focus knobs Signup and view all the answers

Which component controls the amount of light reaching the specimen?

Iris diaphragm Signup and view all the answers

What enhances the quality of light transmitted from the light source?

Filter Signup and view all the answers

The base of the microscope ______________.

supports the microscope and houses the light source Signup and view all the answers

What is the purpose of a coverslip?

Keeps the specimen in place on the slide Signup and view all the answers

Study Notes

Microscope Parts & Functions

Ocular Lens (Eyepiece): Contains a 10x magnifying lens; monocular has one, binocular has two ocular lenses.
Eyepiece Tube: Connects the ocular lens to the objective lens.
Objective Lenses: Magnify specimens with varying power; options include 4x (low), 10x (medium), 40x (high), and 100x (highest).
Revolving Nosepiece: Holds and allows rotation of objective lenses into position above the specimen.
Arm: Structural support connecting the base to the eyepiece tube and nosepiece; used for carrying the microscope.
Central Aperture: Opening in the stage permitting light to pass through to the specimen.
Stage: Flat platform where specimen slides are placed for observation.
Mechanical Stage Knobs: Allow lateral and vertical movement of the specimen slide.
Coarse Focus Knobs: Adjusts the position of the eyepiece tube or stage for initial focus, specifically with the 4x objective lens.
Fine Focus Knobs: Provides precise focusing control for higher objective lenses (10x, 40x, 100x).
Substage Condenser: Gathers and focuses light from the illuminator onto the specimen.
Condenser Knob: Adjusts the position of the condenser to regulate lighting on the specimen.
Iris Diaphragm: Controls light intensity reaching the specimen.
Filter (Blue): Improves the quality of light emitted from the light source.
Filter Holder: Secures the optical filter in position.
Light Source (Illuminator): Illuminates the specimen and can be adjusted using a dimmer or on/off switch.
Base: Acts as the foundation of the microscope and contains the light source.
Microscope Slide: Thin glass surface, approximately 1mm thick, used for securing specimens under observation.
Coverslip: A thin glass sheet placed over specimens on the slide, helping to keep them in place.

Description

This quiz focuses on the essential components of a microscope and their functions. Learn about the ocular lens, eyepiece tube, and objective lenses through interactive flashcards. Perfect for biology students and microscope enthusiasts alike!