LAB APPARATUS Flashcards
Topmost part of the microscope which is the lens the viewer looks
through to see the specimen.
OCULAR LENS OR EYEPIECE
Located above the stage, it holds the objective lenses.
REVOLVING NOSE PIECE
It is used to change focus on one eyepiece in order to correct any difference in vision between the two eyes.
DIOPTER ADJUSTMENT
It connects the eyepiece to the objective lenses.
BODY TUBE OR HEAD
it connects the body tube to the base of the microscope.
ARM
It brings the specimen into general focus.
COURSE ADJUSTMENT
It fine-tunes the focus and increases the details of the specimen.
FINE ADJUSTMENT
This is held in place above the stage by the revolving nosepiece and are the lenses that are closest to the specimen. It contains 3 to 5 objectives ranging in power from 4% to 100X.
Objective Lenses
Located beneath the revolving nosepiece, it is the flat platform on which the specimen is placed.
STAGE
Situated above the stage, these are metal clips that hold the slide
in place.
Stage Clips
Found beneath the stage, these knobs move the stage either left or right or forward and backward.
Stage Control
The hole in the middle of the stage that allows light from the illuminator to reach the slide containing the specimen.
Aperture
The switch located at the base of the microscope that turns the illuminator on or off.
On/Off Switch
The light source of the microscope.
Illuminator
Found on the condenser, it is used to adjust the amount of light coming through the condenser.
IRIS DIAPHRAGM
It is found beneath the stage and contains a lens system that focuses light onto the specimen. It gathers and focuses light onto the specimen.
Condenser
It supports the microscope and it is where the illuminator is found.
BASE
An optical instrument used to magnify organisms a hundred or thousand fold.
Microscope
It is used to decontaminate certain biological waste and sterilize media, instrument, and lab ware.
Autoclave
It provides a temperature-controlled environment to support the growth of microbiological culture.
Incubator
It used for refrigerating, preserving, and storing reagents, culture media, biological and bacterial sample. It provides reliable cooling and stable temperature.
Refrigerator
It is used to take and transfer a small sample of a microorganism culture.
Inoculation Loop
It is used to culture different types of cells, including bacteria and mold.
Petri Dish
It is used to hold objects for examination.
Glass slide
It is used to hold the specimen in place and to avoid contamination.
Cover slip
It is used to hold, mix, or heat small quantities of solid or liquid chemicals.
Test tube
It is used to hold upright multiple test tubes at the same time.
Test tube rack
A measuring or mixing cylinder used to measure the volume of a liquid.
Graduated cylinder
It is used to contain liquids and for mixing, heating, cooling, incubation, and filtration
Erlenmeyer Flask
It is used for measuring and dispensing small amount of liquid.
Dropper
It is used to measure and transfer a precise amount of fluid from one container to another.
Micropipette
It is used for heating, sterilization, and combustion in a laboratory
Alcohol Lamp
It is used to provide a single, continuous flame by mixing gas with air in a controlled fashion.
Bunsen Burner
It is often used in taking microbiological culture, and it is wiped across on the agar plate.
Cotton swab
It is used to stop air movement that might carry microbe.
Cotton plug
It provides effective primary containment for work with infectious material or toxins.
Biosafety cabinet
The distance between the objective’s front lens element and the cover slip’s nearest surface when the specimen is focused.
Working distance
