Podcast
Questions and Answers
Which of the following is a safety measure for laboratory work?
Which of the following is a safety measure for laboratory work?
It is safe to wear synthetic fibers in the laboratory.
It is safe to wear synthetic fibers in the laboratory.
False
What is the purpose of using a centrifuge?
What is the purpose of using a centrifuge?
To separate fluids based on density.
What should you do before starting a centrifuge?
What should you do before starting a centrifuge?
Signup and view all the answers
What does a pH meter measure?
What does a pH meter measure?
Signup and view all the answers
You should cover your ______ when dealing with incendiary materials.
You should cover your ______ when dealing with incendiary materials.
Signup and view all the answers
What is the first step to use a centrifuge machine?
What is the first step to use a centrifuge machine?
Signup and view all the answers
Study Notes
Laboratory Safety
- Wear a lab coat and safety glasses at all times.
- Hair must be covered when handling flammable materials.
- Use gloves and protective gear based on experiment requirements.
- Avoid sandals or open-toed shoes to minimize skin exposure to chemicals.
- Clothing made of synthetic fibers should be avoided due to high flammability risks.
- Protective glasses are essential to shield eyes from chemicals and gases.
- Jewelry and adornments, such as chains or rings, should not be worn during lab activities to prevent accidents.
Writing a Laboratory Report
- Introduction: State the experiment's name and its purpose.
- Method: Document the experimental steps in the past tense, closely following the practical manual.
- Discussion and Conclusion: Analyze results thoughtfully without merely repeating them. Formulate relevant questions in the introduction to guide the discussion. Ensure the discussion is engaging and has a clear purpose.
- Data Presentation: Use tables or graphical forms for presenting results, ensuring they are numbered, titled, and include standardized concentrations.
Equipment Used in Enzyme Laboratory
-
Centrifuge:
- Separates fluids based on density by spinning at high speeds.
- Commonly used to purify cells, organelles, viruses, proteins, and nucleic acids in various research types.
- Available in different types, including large floor models and micro-centrifuges.
Operating a Centrifuge
-
Insert test tube samples into designated portals.
-
Add water-filled test tubes as needed for balance.
-
Secure the lid and select appropriate settings.
-
Start the centrifuge and await the completion of the cycle.
-
pH Meter:
- Measures the concentration of H+ ions in a solution, indicating its acidity or alkalinity.
- The meter needs to be calibrated; immerse the electrode in distilled water before transitioning to a buffer solution (pH = 7).
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
This quiz covers essential safety protocols to follow in a laboratory setting, including attire and protective gear. It also emphasizes the structure and components of writing an effective laboratory report, guiding students through the introduction, method, discussion, and conclusion sections.
