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Wise & Precise​

Laboratory procedures are foundational to scientific research and are practiced with variations across the globe. These procedures ensure accuracy, safety, and reproducibility in experiments and analyses. Understanding international lab standards and practices helps in harmonizing techniques and improving collaborative research efforts. This quiz covers a range of topics from basic safety measures to specific techniques used in laboratories worldwide. By testing your knowledge of these procedures, you can better appreciate the global standards that underpin effective and reliable scientific work.

    1. What is the primary purpose of a fume hood in a laboratory?

    To provide heatingTo ventilate hazardous fumesTo store chemicalsTo provide lighting

    2. Which safety equipment is essential for handling biological samples?

    Eye protection gogglesLab coatBiosafety cabinetFlame arrestor

    3. What is the standard temperature for incubating bacterial cultures?

    25°C30°C37°C45°C

    4. In which procedure is a centrifuge primarily used?

    Mixing chemicalsSeparating liquids from solidsMeasuring temperaturesObserving cells under a microscope

    5. What is the main purpose of using a pipette in a lab?

    Heating liquidsMixing solutionsMeasuring and transferring small volumesSterilizing equipment

    6. Which type of reagent is used to test for the presence of proteins in a sample?

    Benedict’s solutionLugol’s iodineBiuret reagentBromothymol blue

    7. What is a primary concern when working with radioactive materials in the lab?

    Temperature controlProper ventilationRadiation exposureChemical reactivity

    8. Which practice is essential for maintaining sterile conditions in microbiology labs?

    Using open containersWearing protective glovesAutoclaving equipmentIgnoring contamination

    9. What is the role of a control sample in an experiment?

    To test new variablesTo act as a benchmark for comparisonTo increase the experiment’s complexityTo replace the experimental sample

    10. What is the standard method for calibrating a pH meter?

    Using distilled waterUsing a buffer solutionUsing an alcohol solutionUsing a saline solution

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