Understanding Biosensors in Biomolecular Detection
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Questions and Answers

Which method is commonly used to label a molecule in biosensors?

  • Attaching a radioactive tag
  • Attaching a fragrance tag
  • Attaching a color tag (correct)
  • Attaching a taste tag
  • What is the key component employed as a solid support in an electrochemical biosensor?

  • Biomarkers
  • Electrode (correct)
  • Antibodies
  • Sensor membrane
  • What type of sensing device is the electrochemical biosensor based on?

  • Transducing biochemical events to light signals
  • Transducing biochemical events to mechanical signals
  • Transducing biochemical events to electrical signals (correct)
  • Transducing biochemical events to heat signals
  • In biosensors, what are commonly used as electroconductive elements for labeling molecules?

    <p>Color tags</p> Signup and view all the answers

    What is the most common way of attaching a molecule label in biosensors?

    <p>By attaching a color tag</p> Signup and view all the answers

    What is the primary function of an electrode in an electrochemical biosensor?

    <p>Supporting biomolecule immobilization and electron movement</p> Signup and view all the answers

    What is the main function of a biosensor's signal processor?

    <p>Convert the physicochemical signal from the receptor to a quantifiable signal</p> Signup and view all the answers

    How do label biosensors detect molecules of interest?

    <p>By attaching a special tag to the molecules</p> Signup and view all the answers

    In biosensing, what is the function of a transducer?

    <p>Link the bioreceptor to the signal processor</p> Signup and view all the answers

    What are the three groups based on mechanisms of interaction in sensing elements?

    <p>Biosystems, bioaffinitybiocomplexation, biocatalytic</p> Signup and view all the answers

    What is the main purpose of a label-free biosensor?

    <p>Based on biophysical properties</p> Signup and view all the answers

    Which part of a biosensor is responsible for detecting the presence and/or activity of molecules based on their biophysical properties?

    <p>Label-free mechanism</p> Signup and view all the answers

    How are hydrophobic small signal molecules transported in the bloodstream?

    <p>Bound to carrier proteins</p> Signup and view all the answers

    What is the role of carrier proteins in transporting hydrophobic small signal molecules?

    <p>Help molecules cross the lipid bilayer</p> Signup and view all the answers

    How do hydrophobic small signal molecules dissociate before entering the target cell?

    <p>From carrier proteins</p> Signup and view all the answers

    In biosensing principles, what determines the product in the frequency domain?

    <p>Operation principle/transducing mechanism</p> Signup and view all the answers

    What is the primary factor exploiting the presence of enzymes, antibodies, and membrane proteins in biosensing?

    <p>Antigen-binding specificity</p> Signup and view all the answers

    Which component plays a crucial role in determining the species of interest inside cells?

    <p>Membrane proteins</p> Signup and view all the answers

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