MLS 404 Laboratory Materials & Instrumentation Quiz: Centrifuge
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Questions and Answers

What is the purpose of calibrating the centrifuge using a tachometer every 3 months?

  • To adjust the angle of the tubes during centrifugation
  • To disinfect the centrifuge and prevent contamination
  • To ensure the speed of the centrifuge is accurate and consistent (correct)
  • To generate high speeds for tight cell packing

    • Which type of centrifuge is recommended for serum separator tubes?

  • Swinging bucket type
  • Horizontal Centrifuge (correct)
  • Angle Head Centrifuge
  • Ultracentrifuge

    • What is the purpose of an ultracentrifuge being refrigerated?

  • To disinfect the centrifuge and prevent contamination
  • To generate the highest speeds
  • To adjust the angle of the tubes during centrifugation
  • To reduce heat build up produced by friction (correct)

    • What is RCF (Relative Centrifugal Force) in a centrifuge?

    <p>Force needed to separate the components of a sample or solution</p> Signup and view all the answers

    What type of centrifuge generates less heat due to air friction during the centrifugation process?

    <p>Angle Head Centrifuge</p> Signup and view all the answers

    What type of glassware has the highest thermal resistance?

    <p>Boron-free glassware</p> Signup and view all the answers

    Which type of pipet allows the exact volume to be obtained by blowing out the last drop?

    <p>Serologic pipet</p> Signup and view all the answers

    What is the primary structure of a protein?

    <p>Linear sequence of amino acids</p> Signup and view all the answers

    Which type of glassware is suitable for drastic heat shock and extreme chemical treatment?

    <p>Flint glassware</p> Signup and view all the answers

    What does a self-draining pipet allow the liquid to do?

    <p>Drain by gravity</p> Signup and view all the answers

    What is the purpose of calibrating the centrifuge using a tachometer every 3 months?

    <p>To ensure that the centrifuge reaches the recommended RPM for efficient separation</p> Signup and view all the answers

    What is RCF (Relative Centrifugal Force) in a centrifuge?

    <p>The force needed to separate the components of a sample or solution</p> Signup and view all the answers

    Which type of centrifuge is recommended for lipoprotein separation?

    <p>Ultracentrifuge</p> Signup and view all the answers

    What type of glassware has the highest thermal resistance?

    <p>Borosilicate glassware</p> Signup and view all the answers

    Which type of centrifuge generates less heat due to air friction during the centrifugation process?

    <p>Angle Head Centrifuge</p> Signup and view all the answers

    What is the purpose of a self-draining pipet?

    <p>To allow the liquid to drain by gravity without etched rings</p> Signup and view all the answers

    Which type of glassware has less thermal resistance than borosilicate glass?

    <p>Flint glass</p> Signup and view all the answers

    What is the tertiary structure of a protein responsible for?

    <p>Folding pattern of the protein affecting physical and chemical properties</p> Signup and view all the answers

    What does a blown out pipet with continuous etched rings allow?

    <p>Obtaining an exact volume by blowing out the last drop</p> Signup and view all the answers

    What is the primary function of alumina-silicate glass (Vycor) in comparison to borosilicate glass?

    <p>It is 6 times stronger than borosilicate glass and chemically strengthened</p> Signup and view all the answers

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