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Laboratory-Equipments-Microbiology-Lab-Renae-Notes.pdf Flashcards
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1
Question
A common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing open at the top and closed at the bottom
Answer
Test tube
2
Question
Containers used in laboratories, available in various sizes with rough volume estimates
Answer
Beakers
3
Question
Often used as reaction vessels, particularly in titrations, with volume markings that may not be accurate
Answer
Erlenmeyer flask
4
Question
Used to measure and store solutions with high accuracy, possessing a marking indicating liquid volume equal to the volume written on the flask
Answer
Volumetric flask
5
Question
Used to transfer liquids with a moderate degree of accuracy
Answer
Graduated cylinder
6
Question
Used for transferring liquids with a fixed volume and known quantity to a high degree of accuracy
Answer
Pipette
7
Question
Calibrated in the factory to release a desired quantity of liquid
Answer
Graduated pipette
8
Question
Made of plastic and useful for transferring liquids dropwise
Answer
Disposable pipette
9
Question
Devices used in analytical chemistry for measuring liquid solution, heavily used in titration experiments
Answer
Burette
10
Question
Scientific equipment used to hold and secure a burette on a stand for experiments
Answer
Burette clamp
11
Question
A wide-top, narrow-bottom tube or pipe used for guiding liquid or powder into a small opening
Answer
Funnel
12
Question
Piece of laboratory equipment used in filtration, traditionally made of porcelain with variations in glass and plastic
Answer
Buchner funnel
13
Question
Standard technique for separating solid-liquid mixtures with the goal of retaining the solid, aided by suction beneath the funnel
Answer
Vacuum filtration
14
Question
Used to hold round laboratory glassware like beakers and flasks, typically made from stainless steel
Answer
Clamp
15
Question
Brush used for cleaning test tubes, narrow-mouth glassware, and laboratory equipment
Answer
Test tube brush
16
Question
Retain the solid in crystallization
Answer
Gravity filtration
17
Question
Process aided by suction beneath the funnel
Answer
Crystallization
18
Question
Used to hold round laboratory glassware
Answer
Clamp
19
Question
Brush used for cleaning test tubes
Answer
Test tube brush
20
Question
Used to hold test tubes in place
Answer
Test tube holder
21
Question
Laboratory equipment used to hold multiple test tubes upright
Answer
Test tube stand
22
Question
Source of heat in laboratories
Answer
Bunsen burner
23
Question
Small dish shaped like a cylinder
Answer
Petri dish
24
Question
Used to mix chemicals and liquids in laboratories
Answer
Glass rod
25
Question
Instrument used to transfer small quantities of liquid
Answer
Graduated dropper
26
Question
Type of tool used to grip and lift objects in laboratories
Answer
Tongs
27
Question
Laboratory apparatus resembling a pair of scissors
Answer
Utility clamp
28
Question
Three-legged platform used to support flasks and beakers
Answer
Tripod for Bunsen burner
29
Question
Squeeze bottle with a nozzle used to rinse laboratory glassware
Answer
Wash bottle
30
Question
Used for uniform distribution of flame heat in a heated body
Answer
Wire mesh gauze
Laboratory-Equipments-Microbiology-Lab-Renae-Notes.pdf Flashcards
Study
1
Question
Magnetic Stirrer
Answer
A device widely used in laboratories that consists of a rotating magnet or a stationary electromagnet creating a rotating magnetic field, used for stirring or mixing solutions
2
Question
Water Bath
Answer
Laboratory equipment made from a container filled with heated water, used to incubate samples at a constant temperature over a long period of time
3
Question
Vacuum Pump
Answer
A device used to evacuate chemically aggressive gases and vapors
4
Question
Digital Colorimeter
Answer
A light-sensitive device used for measuring the transmittance and absorbance of light passing through a liquid sample to determine color intensity or concentration
5
Question
Digital Conductometer
Answer
An instrument that measures the electrical conductivity in a solution, with applications in research and engineering
6
Question
Digital pH Meter
Answer
A scientific instrument that measures the hydrogen ion activity in water-based solutions, indicating acidity or alkalinity expressed as pH
7
Question
Digital Potentiometer
Answer
An instrument for measuring voltage by comparing an unknown voltage with a known reference voltage, providing high precision in measurement
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Microscope-Microbiology-Lab-Renae-Notes.pdf Flashcards
Study
1
Question
Contains lenses that contribute to total magnification power of 10x
Answer
Ocular eyepiece
2
Question
Hollow tube that keeps the lenses of the ocular and objectives at a set distance
Answer
Body tube
3
Question
Holds objectives
Answer
Nosepiece
4
Question
Contain lenses that contribute to total magnification
Answer
Objectives
5
Question
Supports body tube
Answer
Arm
6
Question
Supports the entire microscope; keep hand back on base when carrying because lamp will be hot
Answer
Base
7
Question
Traylike structure that supports specimen slide over the stage opening
Answer
Stage
8
Question
Keeps specimen slide tight against the stage
Answer
Stage clips
9
Question
Controls the amount of light that reaches your eye
Answer
Diaphragm
10
Question
Provides light to create the image that you see
Answer
Light source
11
Question
Larger knob that moves body tube, stage, or nosepiece for rough focus
Answer
Coarse adjustment
12
Question
Smaller knob that moves the objectives slightly for fine focusing
Answer
Fine adjustment
13
Question
What part you look through in a microscope
Answer
Ocular eyepiece
14
Question
Part of the microscope that holds the objectives
Answer
Nosepiece
15
Question
Part that keeps the lenses of the ocular and objectives at a set distance
Answer
Body tube
16
Question
What is a microscope?
Answer
A laboratory equipment that is used to magnify objects that cannot normally be seen by the unaided eye.
17
Question
What is the function of a microscope?
Answer
It magnifies objects producing an image in which the object appears larger.
18
Question
What are the major types of microscopes?
Answer
1. Compound Microscope 2. Dissecting Microscope 3. Electron Microscope
19
Question
When was the first compound microscope created?
Answer
1590 by two Dutch spectaclemakers, Hans and Zacharias Janssen.
20
Question
Who discovered plant cells using a compound microscope?
Answer
Robert Hooke in 1670.
21
Question
Who was the first to observe bacteria using a microscope with one lens?
Answer
Anton van Leeuwenhoek in 1675.
22
Question
Where should you always store your microscope?
Answer
With the low power objective in place.
23
Question
What is the total magnification of a microscope with an ocular objective of 10x and a high power objective of 50x?
Answer
500x total magnification
24
Question
Where are the objectives of a microscope attached?
Answer
Nosepiece, which can be rotated to click the lenses into place.