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WorksheetsW1 Scientific Equipment and Techniques Quiz
Total questions: 106
Worksheet time: 2hrs 28mins
การใช้งานหลักของตู้บ่มคืออะไร?
การเพาะเลี้ยงสิ่งมีชีวิตขนาดเล็ก เช่น แบคทีเรีย เชื้อรา หรือเซลล์สัตว์
การควบคุมอุณหภูมิในช่วงการเจริญเติบโตที่เหมาะสม
การรักษาความชื้นและระดับ CO₂ สำหรับการเพาะเลี้ยงเซลล์
What is an example of using an incubator in a laboratory?
Cultivating bacteria in culture media
Maintaining a constant temperature for samples
What is the purpose of using an incubator in bacterial culture?
To maintain a constant temperature
To mix solutions
To create a flow of nutrients and air
What is the function of a shaker?
To maintain a constant temperature
To mix solutions
To create a flow of nutrients and air
What are the advantages of using an incubator shaker?
Increases oxygen solubility in culture media
Helps microorganisms grow faster
Reduces sediment formation in solutions
การพาสเจอไรซ์คืออะไร?
กระบวนการที่ใช้ความร้อนในการฆ่าเชื้อโรค
วิธีการแช่แข็งอาหาร
เทคนิคในการทำให้ผลไม้แห้ง
การพาสเจอไรซ์คืออะไร?
กระบวนการที่ใช้ความร้อนเพื่อฆ่าเชื้อโรคที่เป็นอันตราย
วิธีการแช่แข็งอาหาร
เทคนิคการทำให้ผลไม้แห้ง
วิธีการบรรจุอาหาร
What is the purpose of an autoclave?
To sterilize equipment using high-pressure steam
To cook food
To store chemicals
To cool down liquids
What is the temperature used in an autoclave?
Above 100°C
Below 50°C
Exactly 100°C
Around 200°C
What is the function of a hot-air oven?
To sterilize equipment using dry heat
To boil liquids
To freeze food
To mix ingredients
What is a hot-air oven used for?
To sterilize heat-resistant equipment
To bake chemicals
To remove moisture from substances
What principle does a centrifuge operate on?
Centrifugal force
Gravitational force
Magnetic force
What happens to components with higher density in a centrifuge?
They move to the outer side
They remain in the middle
They float to the top
What happens to components with higher density when subjected to centrifugal force?
They move outward
They move inward
What is the advantage of separating different components quickly and accurately?
It allows for faster analysis
It is more cost-effective
What should be ensured about the sample tube before centrifugation?
It can withstand centrifugal force
It is clean
What is the purpose of the Alcoholic Lamp or Alcohol Burner?
To provide a stable flame
To heat large containers
What precautions should be taken when using the Alcoholic Lamp?
Use in a well-ventilated area
Keep away from flammable materials
What is the function of the Loop and Needle Set?
ควรทำอย่างไรหลังจากใช้เครื่องมือเพื่อป้องกันการระเหยของแอลกอฮอล์?
What should not be done while the lamp is still hot or has fire?
What is the purpose of the Loop and Needle Set in microbiology?
What is the first step in using the Inoculating Loop?
What is the temperature and time for the Denaturation step in PCR?
What is the temperature range for the Annealing step in PCR?
อุณหภูมิสำหรับขั้นตอนการขยาย/ยืดใน PCR คืออะไร?
อุณหภูมิสำหรับขั้นตอนการขยาย/ยืดในกระบวนการสังเคราะห์ DNA คืออะไร?
65°C
72°C
20–40 วินาที
1 นาทีต่อ 1,000 bp
What is the purpose of the pipette and tip set?
To mix solutions
To dispense liquids
To measure temperature
To analyze DNA
What is the function of the Spreader Triangle?
To mix liquids
To spread microbial solutions
To measure DNA
To analyze proteins
What is the purpose of the Vortex Mixer?
To mix liquids rapidly
To measure temperature
To analyze DNA
To dispense liquids
What is a Vortex Mixer?
A device designed to mix liquids in test tubes or flasks by rapid rotation.
A device used to measure the absorbance of light.
A type of microscope.
A device for reading microplates.
What does a Spectrophotometer measure?
The absorbance or transmittance of a substance.
The temperature of a solution.
The pH level of a solution.
The viscosity of a liquid.
What is the principle of operation of a Spectrophotometer?
ใครเป็นผู้ตั้งชื่อว่า 'กล้องจุลทรรศน์'?
จิโอวานนี ฟาเบอร์
ไอแซค นิวตัน
อัลเบิร์ต ไอน์สไตน์
กาเลลิโอ กาลิเลอี
What does the term 'compound' mean in the context of a compound microscope?
It means the microscope has more than one lens.
It refers to the size of the microscope.
It indicates the microscope is electronic.
It means the microscope is portable.
หากใช้เลนส์ตา 10x กับเลนส์วัตถุ 100x การขยายภาพรวมจะเป็นเท่าไหร่?
1000
100
10
10000
What is the purpose of an inverted microscope?
It is designed for observing specimens from below.
It is used for high magnification.
It is a portable microscope.
It is used for electron microscopy.
What is the function of the objective lens in a microscope?
It is located at the bottom of the stage.
It is used to generate light.
It is used for observing living cells.
It is located at the top of the microscope.
What is the purpose of fluorescence microscopes?
To use fluorescence instead of other light properties.
To create 3D images.
To observe living cells.
To scan the surface of specimens.
เทคนิคที่ใช้ในกล้องจุลทรรศน์แบบคอนฟอคัลคืออะไร?
กล้องจุลทรรศน์แบบสแกนเลเซอร์คอนฟอคัล
การถ่ายภาพฟลูออเรสเซนซ์
กล้องจุลทรรศน์อิเล็กตรอน
กล้องจุลทรรศน์อิเล็กตรอนแบบสแกน
What is the main advantage of scanning electron microscopes?
High-resolution images of surface structures.
Ability to observe living cells.
3D imaging capabilities.
Use of fluorescence.
What is the function of Transmission Electron Microscopes (TEM)?
To create images by detecting electrons
To provide high-resolution images of surface structures
To study the microscopic structure of cells
To visualize the internal structure of specimens
What are the structural components of a microscope?
Head/Body, Base, Arm, Eyepiece, Eyepiece Tube
Lens, Light Source, Stage, Objective Lens
Mirror, Stage Clips, Coarse Focus, Fine Focus
Base, Arm, Stage, Light Source, Eyepiece
What is the purpose of the Eyepiece in a microscope?
To magnify the specimen
To hold the objective lens
To illuminate the specimen
To support the microscope structure
What does the Base of a microscope do?
Supports the structure and houses the light source
Connects the head to the arm
Holds the eyepiece in place
Provides magnification
What is the purpose of the eyepiece tube?
To hold the eyepiece in place
To adjust the focus
To change the objective lens
What is the function of the objective lenses?
To magnify the specimen
To illuminate the specimen
To adjust the focus
What does the nosepiece do?
Holds the objective lenses
Adjusts the focus
Illuminates the specimen
วัตถุประสงค์ของเวทีคืออะไร?
เพื่อถือสไลด์ตัวอย่าง
เพื่อปรับโฟกัส
เพื่อเปลี่ยนเลนส์ตา
What is the function of the aperture?
To control the amount of light
To hold the specimen slide
To adjust the focus
What is the role of the illuminator?
To provide light for viewing the specimen
To magnify the specimen
To hold the objective lenses
What does the condenser do?
Focuses light onto the specimen
Holds the specimen slide
Adjusts the eyepiece
What is the function of the condenser in a microscope?
To focus light onto the specimen
To control the amount of light passing through the specimen
To adjust the position of the condenser lens
To support the microscope
What does the iris diaphragm control?
The amount of light passing through the specimen
The focus of the light
The position of the eyepiece
The support of the microscope
What is the purpose of the eyepiece in a microscope?
To look through at the top of the microscope
To hold the objective lens in place
To support the microscope
To adjust the focus
What is the magnifying power of standard eyepieces?
10x
5x
30x
15x
What does the eyepiece tube do?
Holds the eyepieces in place above the objective lens
Connects to the base of the microscope
Adjusts the focus of the microscope
Supports the microscope head
What is the purpose of the monocular microscope?
What are the primary optical lenses on a microscope called?
What is the function of the nosepiece on a microscope?
What are the Coarse and Fine Focus knobs used for?
Where is the specimen placed in a microscope?
What are Stage Clips used for in a microscope?
What is the purpose of the aperture in a microscope?
What is the purpose of the stage clips?
To hold the slide in place
To illuminate the specimen
To adjust the focus
To control light intensity
What is the function of the aperture in a microscope?
To allow light to pass through
To magnify the specimen
To focus the light
To hold the slide
What is the role of the illuminator in a microscope?
To provide light
To magnify the specimen
To hold the slide
To adjust the focus
What does the condenser do?
Collects and focuses light
Holds the slide
Magnifies the specimen
Controls light intensity
What is the function of the iris diaphragm?
Controls the amount of light
Holds the slide
Magnifies the specimen
Focuses the light
What does the condenser focus knob do?
Moves the condenser up or down
Controls light intensity
Holds the slide
Magnifies the specimen
What is the purpose of the simple streak technique?
To spread bacteria on the surface of a culture plate
To magnify the specimen
To hold the slide
To control light intensity
What is the purpose of spreading bacteria on the surface of a culture plate?
To distribute bacteria evenly across the plate
To isolate single colonies
To test antibiotic sensitivity
To grow bacteria in a specific pattern
What equipment is used for bacterial streaking?
Inoculating loop
Agar plate
Alcohol lamp
All of the above
What is the first step in the bacterial streaking technique?
Heat the inoculating loop until red hot
Cool the inoculating loop
Inoculate the sample onto the agar plate
Close the lid of the petri dish
What is the purpose of the cross streak technique?
To isolate single colonies
To distribute bacteria evenly
To test for antibiotic resistance
To grow bacteria in a specific pattern
What should be done between each zone in the cross streak technique?
Flame the inoculating loop
Cool the inoculating loop
Inoculate the next zone
Close the petri dish
What are the necessary equipment for collecting samples?
Swab (cotton swab or ready-made swab)
Nutrient agar, MacConkey agar
Alcohol lamp or sterilization equipment
Gloves and protective equipment
What is the basic technique used for collecting bacterial samples?
Swabbing
Dilution
Incubation
Streaking
What is the appropriate temperature for incubating the samples?
30-37°C
20-25°C
40-45°C
10-15°C
What is the purpose of using a spreader in the sample collection process?
To distribute the diluted sample evenly
To sterilize the agar plate
To collect the sample
To measure the temperature
How to use a spreader to distribute the diluted sample evenly on the surface of the agar plate?
Rotate the plate or move the spreader in a systematic direction.
Pour the diluted sample directly onto the agar plate.
Use a pipette to drop the sample onto the plate.
Leave the sample in the center of the plate.
What is the purpose of counting the number of colonies formed after incubation?
To calculate CFU/mL in the original sample.
To determine the type of microorganisms present.
To assess the growth rate of the microorganisms.
To evaluate the effectiveness of the agar medium.
What temperature and time are suitable for incubating the agar plate?
37°C for 24-48 hours.
25°C for 12-24 hours.
30°C for 48-72 hours.
40°C for 6-12 hours.
What is the Spread Plate Method used for?
To isolate and count viable microorganisms in liquid samples.
To prepare agar plates for microbial growth.
To sterilize the agar medium before use.
To measure the pH of the liquid sample.
ใหนิสิตระบุชื่อเรียกเครื่องมือทางวิทยาศาสตรโดยใช้ชื่อเรียก ภาษาไทย แล technical term และบอกหนาที่ของ เครื่องมือดังตอไปนี้ใหถูกตอง
Machine name
ชื่อเครื่อง
หน`าที่/ประโยชนW
นิสิตเคยมีประสบการณWใช`เครื่องมือ นี้มากNอนหรือไมN
Have you ever had experience using this tool before?
Please specify the name of the scientific tool using the Thai name and technical term, and state the function of the tool as follows.
Have you ever had experience using this tool before?
Please specify the name of the scientific tool using the Thai name and technical term, and state the function of the tool as follows.
Have you ever had experience using this tool before?
Please specify the name of the scientific tool using the Thai name and technical term, and state the function of the tool as follows.
Have you ever had experience using this tool before?
Please specify the name of the scientific tool using the Thai name and technical term, and state the function of the tool as follows.
ใหนิสิตระบุชื่อเรียกเครื่องมือทางวิทยาศาสตรโดยใช้ชื่อเรียก ภาษาไทย แล technical term และบอกหนาที่ของ เครื่องมือดังตอไปนี้ใหถูกตอง
นิสิตเคยมีประสบการณWใช`เครื่องมือ นี้มากNอนหรือไมN
Machine name
What is the role or benefit of the machine?
Has the student had experience using this tool before?
Microscopy and Its Application for Diagnosis of Aquatic Diseases
Fill in the blanks to show the correct components and functions of the microscope.
Find an example image taken under SEM and TEM, and describe the distinct components found in those images, including clearly stating the source of the images.
Identify the microbiological techniques used from the following experiments correctly.
