Biosensors
Biology ⇒ Biotechnology and Applications
Biosensors starts at 11 and continues till grade 12.
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See sample questions for grade 12
A biosensor gives a false positive result. Which property is lacking?
Describe how a piezoelectric biosensor works.
Describe one advantage and one limitation of using enzyme-based biosensors.
Describe one way in which nanotechnology can improve biosensor performance.
Describe the principle of an electrochemical biosensor.
Explain how an immunosensor works.
Explain the difference between a biosensor and a biochip.
A biosensor is used to detect pesticide residues in vegetables. Which property is most important for this application? (1) Portability, (2) Selectivity, (3) Size, (4) Color
A biosensor is used to detect pesticide residues in vegetables. Which property is most important for this application? (1) Portability, (2) Selectivity, (3) Size, (4) Color
Biosensors are widely used in which of the following fields? (1) Medical diagnostics, (2) Environmental monitoring, (3) Food industry, (4) All of the above
Which of the following is a characteristic of an ideal biosensor? (1) High cost, (2) High stability, (3) Large size, (4) Low sensitivity
Which of the following is a common method for immobilizing enzymes on biosensor surfaces? (1) Adsorption, (2) Precipitation, (3) Evaporation, (4) Sublimation
A biosensor that uses nucleic acids as bioreceptors is called a __________ biosensor.
Fill in the blank: The __________ is the part of the biosensor that displays the result to the user.
Fill in the blank: The __________ is the substance whose presence or concentration is being measured by a biosensor.
Fill in the blank: The __________ of a biosensor is the time taken to reach a stable response after exposure to the analyte.
True or False: Biosensors can be integrated with smartphones for portable diagnostics.
True or False: Biosensors can be used for continuous monitoring of analytes.
True or False: Biosensors can be used to detect pathogens in water samples.
True or False: Biosensors can be used to monitor air quality.
