MCQOPTIONS
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MCQOPTIONS
This section includes 45 Mcqs, each offering curated multiple-choice questions to sharpen your Biomedical Instrumentation knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Blood glucose level measurement device uses a biosensor works on the principle of electrochemical. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Home blood glucose measurement devices measure the glucose level through non-invasive method. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
The chemical reaction of glucose with oxygen is catalyzed in the presence of ________ |
| A. | glucose oxidase |
| B. | monoglucose carbodase |
| C. | glusoce dioxidase |
| D. | biglucose oxidase |
| Answer» B. monoglucose carbodase | |
| 4. |
Home blood glucose sensor works on which principle? |
| A. | electro-physiological |
| B. | electrochemical |
| C. | physio-chemical |
| D. | chemical |
| Answer» C. physio-chemical | |
| 5. |
Endoscopic imaging uses ___________ |
| A. | thermal sensors |
| B. | chemical sensors |
| C. | optic fiber sensors |
| D. | pressure sensors |
| Answer» D. pressure sensors | |
| 6. |
Monopolar needle electrode have a coating of which material over the stainless steel wires which are bare only at the tips? |
| A. | carbon |
| B. | calcium |
| C. | sodium |
| D. | teflon |
| Answer» E. | |
| 7. |
For constructing the glucose sensor, which of the following is used as a gel? |
| A. | Urea |
| B. | Urease |
| C. | Acrylamide |
| D. | Polyacrylamide |
| Answer» E. | |
| 8. |
In glucose sensor, a measure of change in oxygen value is a measure of the glucose value. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Given below is the diagram of biosensor. Identify the unmarked component. |
| A. | Microprocessor |
| B. | Filter |
| C. | Transducer |
| D. | A/D converter |
| Answer» D. A/D converter | |
| 10. |
Nanoscopic optical biosensors have fast response time but the sensitivity is reduced. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
An example of biosensor, urea electrode makes use of which of the following electrodes? |
| A. | Carbon dioxide electrode |
| B. | Ammonia electrode |
| C. | Fluoride electrode |
| D. | Ammonium electrode |
| Answer» E. | |
| 12. |
Which of the following is not a characteristic of the immobilized enzymes? |
| A. | They cannot be re-used |
| B. | It produces reproducible results |
| C. | Stability exists |
| D. | Same catalytic activity is present for number of analysis |
| Answer» B. It produces reproducible results | |
| 13. |
In a biosensor ___________ is one which involves subtracting a ‘reference’ baseline signal from the sample signal. |
| A. | signal processor |
| B. | amplifier |
| C. | detector |
| D. | transducer |
| Answer» B. amplifier | |
| 14. |
What property of enzyme doesn’t make it an excellent analytical reagent? |
| A. | Specificity |
| B. | Selectivity |
| C. | Piezo-electric biosensor |
| D. | Location of the enzyme |
| Answer» D. Location of the enzyme | |
| 15. |
_______________ biosensors are those in which the changes in the distribution of charges causing an electrical potential to be produced. |
| A. | Calorimetric |
| B. | Potentiometric |
| C. | Optical |
| D. | Amperometric |
| Answer» C. Optical | |
| 16. |
There are 3 so called generation of biosensors. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 17. |
Distribution of charges: Potentiometric biosensor:: Mass of reactants or products: _________ |
| A. | Optical biosensor |
| B. | Calorimetric biosensor |
| C. | Piezo-electric biosensor |
| D. | Amperometric biosensor |
| Answer» D. Amperometric biosensor | |
| 18. |
When the physical change produced in a biosensor is due to the movement of electrons produced in a redox reaction, the biosensor is referred to as ____________ |
| A. | calorimetric biosensor |
| B. | potentiometric biosensor |
| C. | piezo-electric biosensor |
| D. | amperometric biosensor |
| Answer» E. | |
| 19. |
Heat output: calorimetric biosensor:: light output: ____________ |
| A. | Optical biosensor |
| B. | Piezo-electric biosensor |
| C. | Potentiometric biosensor |
| D. | Amperometric biosensor |
| Answer» B. Piezo-electric biosensor | |
| 20. |
If the physical change accompanying the reaction is heat output, the biosensors are referred to as _________________ |
| A. | potentiometric biosensors |
| B. | optical biosensors |
| C. | calorimetric biosensors |
| D. | amperometric biosensors |
| Answer» D. amperometric biosensors | |
| 21. |
What does the following diagram represent? |
| A. | Packed bed reactor |
| B. | Schematic diagram showing the main components of a biosensor |
| C. | Chromatography |
| D. | Lock and key model |
| Answer» C. Chromatography | |
| 22. |
Immobilized enzymes are more preferred over free enzymes in producing biosensors. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 23. |
Which of the following property is not possessed by biosensors? |
| A. | The probe used in the biosensor must be tiny and biocompatible, having no toxic or antigenic effects |
| B. | The biosensor should be cheap, small, portable and capable of being used by semi-skilled operators |
| C. | There should be a market for the biosensor |
| D. | The specificity of substrate binding is mediated by spatial arrangement of atoms in an enzyme’s substrate binding site as well as substrate. |
| Answer» E. | |
| 24. |
Which of the following features is not possessed by biosensor? |
| A. | The biocatalyst used in the biosensor must be highly specific for the purpose of the analyses |
| B. | The reaction occurring in the biosensor should be as independent of such physical parameters |
| C. | Active site is mainly constituted by non-polar amino acids for catalysis to take place |
| D. | The response from the biosensors should be accurate, precise, reproducible and linear |
| Answer» D. The response from the biosensors should be accurate, precise, reproducible and linear | |
| 25. |
Which of the following statements is not true for biosensors? |
| A. | Biosensors convert a biological signal into an electrical signal |
| B. | Biosensors are used to determine the concentration of substances and other parameters of biological interest even where they do not utilize a biological system directly |
| C. | Biosensors utilize the different biological systems such as enzymes, whole cell metabolism, ligand binding and the antibody-antigen reaction |
| D. | Biosensor consists of a vessel, or series of vessels, used to perform a desired conversion by enzymic means |
| Answer» E. | |
| 26. |
BLOOD_GLUCOSE_LEVEL_MEASUREMENT_DEVICE_USES_A_BIOSENSOR_WORKS_ON_THE_PRINCIPLE_OF_ELECTROCHEMICAL.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 27. |
NANOSCOPIC_OPTICAL_BIOSENSORS_HAVE_FAST_RESPONSE_TIME_BUT_THE_SENSITIVITY_IS_REDUCED.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 28. |
HOME_BLOOD_GLUCOSE_MEASUREMENT_DEVICES_MEASURE_THE_GLUCOSE_LEVEL_THROUGH_NON-INVASIVE_METHOD.?$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 29. |
In glucose sensor, a measure of change in oxygen value is a measure of the glucose value.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 30. |
For_constructing_the_glucose_sensor,_which_of_the_following_is_used_as_gel? |
| A. | Urea |
| B. | Urease |
| C. | Acrylamide |
| D. | Polyacrylamide |
| Answer» E. | |
| 31. |
Which of the following biosensors use the movement of electrons produced during redox reactions? |
| A. | Amperometric biosensor |
| B. | Potentiometric biosensors |
| C. | Piezo-electric biosensors |
| D. | Optical biosensors |
| Answer» B. Potentiometric biosensors | |
| 32. |
The chemical reaction of glucose with oxygen is catalyzed in the presence of _______? |
| A. | glucose oxidase |
| B. | monoglucose carbodase |
| C. | glusoce dioxidase |
| D. | biglucose oxidase |
| Answer» B. monoglucose carbodase | |
| 33. |
Which of these biosensors use the principle of heat released or absorbed by a reaction? |
| A. | Potentiometric biosensor |
| B. | Optical biosensors |
| C. | Piezo-electric biosensors |
| D. | Calorimetric biosensors |
| Answer» E. | |
| 34. |
Home blood glucose sensor works on the which principle? |
| A. | electro-physiological |
| B. | electrochemical |
| C. | physio-chemical |
| D. | chemical |
| Answer» C. physio-chemical | |
| 35. |
Transducers employed in the bulk of enzyme electrodes use which of the following principles? |
| A. | Amperometric |
| B. | Optical |
| C. | Magnetic |
| D. | Colorimetric |
| Answer» B. Optical | |
| 36. |
The biological response of the biosensor is determined by ______ |
| A. | biocatalytic membrane |
| B. | physio-chemical membrane |
| C. | chemical membrane |
| D. | artificial membrane |
| Answer» B. physio-chemical membrane | |
| 37. |
Biosensors measure glucose concentrations between which of the following ranges? |
| A. | 10<sup>-1</sup> to 10<sup>-2</sup> M |
| B. | 10<sup>-2</sup> to 10<sup>-4</sup> M |
| C. | 10<sup>-1</sup> to 10<sup>-4</sup> M |
| D. | 10<sup>-1</sup> to 10<sup>-7</sup> M |
| Answer» E. | |
| 38. |
_______________ converts biochemical events into measurable signals. |
| A. | amplifier |
| B. | opamp |
| C. | rectifier |
| D. | transducer |
| Answer» E. | |
| 39. |
In glucose electrode, glucose oxidase has been coupled to an electrode by which of the following materials? |
| A. | Ferrocene derivatives |
| B. | Urease |
| C. | Polyacrylamide |
| D. | Biochips |
| Answer» B. Urease | |
| 40. |
Endoscopic imaging uses ___________ |
| A. | thermal sensors |
| B. | chemical sensors |
| C. | optic fiber sensors |
| D. | pressure sensors |
| Answer» D. pressure sensors | |
| 41. |
An example of bio sensor, urea electrode makes use of which of the following electrodes? |
| A. | Carbon dioxide electrode |
| B. | Ammonia electrode |
| C. | Fluoride electrode |
| D. | Ammonium electrode |
| Answer» E. | |
| 42. |
Monopolar needle electrode are have a coating of which material over the stainless steel wires which are bare only at the tips? |
| A. | carbon |
| B. | calcium |
| C. | sodium |
| D. | teflon |
| Answer» E. | |
| 43. |
Which of the following is the physico-chemical component? |
| A. | Enzymes |
| B. | Anti-bodies |
| C. | Transducer |
| D. | Cells or tissues |
| Answer» D. Cells or tissues | |
| 44. |
Fluoroptic temperature sensors work on the principle of _______ |
| A. | thermistor |
| B. | thermocouple |
| C. | optical fiber |
| D. | rtd |
| Answer» D. rtd | |
| 45. |
Doppler velocimetry works on the principle of __________ |
| A. | frequency measurement of fiber optic sensor |
| B. | amplitude measurement of fiber optic sensor |
| C. | phase measurement of fiber optic sensor |
| D. | time shift measurement of fiber optic sensor |
| Answer» B. amplitude measurement of fiber optic sensor | |