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Biosensor Basic Principles Quiz

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Questions and Answers

What is a common method used for the immobilization of bioreceptors in biosensors?

Chemical encapsulation

Biological bonding

Physical entrapment (correct)

Mechanical attachment

How is chemical attachment of bioreceptors to the transducer surface typically achieved?

By ionic bonding

Via covalent bonding (correct)

By van der Waals forces

Through hydrogen bonding

Why is only minute quantities of bioreceptor molecules needed in biosensors?

To reduce the overall sensor size

To enable the reuse of the bioreceptor molecules (correct)

To prevent interference in measurements

To save cost in production

Which enzyme is commonly used as a bioreceptor in glucose biosensors?

Glucose oxidase Signup and view all the answers

What type of transducer converts oxygen concentration into electrical current in biosensors?

Oxygen sensor Signup and view all the answers

Which of the following is NOT a possible transducer for glucose measurement according to the text?

Temperature sensor Signup and view all the answers

What is the primary function of a bioreceptor in a biosensor?

To generate a signal upon interaction with an analyte Signup and view all the answers

Which of the following is not an example of a bioreceptor?

Transistors Signup and view all the answers

What is the role of a transducer in a biosensor?

To convert the biorecognition event into a measurable signal Signup and view all the answers

Which of the following is a common output of a transducer in a biosensor?

All of the above Signup and view all the answers

What does the electronics part of a biosensor do?

Processes the transduced signal Signup and view all the answers

What is the purpose of the display in a biosensor?

To present the results of the biosensor in a user-friendly manner Signup and view all the answers

What is the role of a bioreceptor in a biosensor?

To interact with the analyte under study Signup and view all the answers

What is the purpose of a transducer in a biosensor?

To convert the signal from biological target to electrical signal Signup and view all the answers

What type of element is a bioreceptor?

Biological Signup and view all the answers

What is the function of the electrical interfaces in a biosensor?

To transform the signal into electrical signal form Signup and view all the answers

What is a transducer in general terms?

A device that converts energy from one form to another Signup and view all the answers

What is the role of the electronic system in a biosensor?

To amplify and detect the electrical signal Signup and view all the answers