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Biosensor Quiz

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What is a sensor?

a)

Component of device

b)

An Instrument

c)

Device

d)

Non of these

2.

pH strip is a --

a)

Sensor

b)

Biosensor

c)

Chemical sensor

d)

Chemical compound

3.

EEG is an _

a)

Biomedical Instrument

b)

Biomedical sensor

c)

Biosensor

d)

Potentiometer

4.

What are natural sensor?

a)

Cells

b)

Neurons

c)

Nose

d)

Brain

5.

Difference between Natural sensors and sensing device is

a)

They are same

b)

Identification physical & chemical environment

c)

Measurement of physical & chemical environment

d)

Natural sensors are better than sensing device

6.

Given below is the diagram of biosensor. Identify the unmarked component.

Biosensor- ?-Amplifier- Processing-Display

a)

Microprocessor

b)

Transducer

c)

Filter

d)

A/D converter

7.

Following is (are) the type(s) of Light sensor(s)

a)

Photo conductors

b)

Photo sensor

c)

Photo transistors

d)

All of the above

8.

Following acts as detector in Optical sensor

a)

Photo diode

b)

Light emitting diode

c)

Transistor

d)

All of the above

9.

Following is not an example of transducer.

a)

Thermocouple

b)

Photo electric cell

c)

Pneumatic cylinder

d)

Analogue voltmeter

10.

The biological response of the biosensor is determined by ______

a)

physio-chemical membrane

b)

chemical membrane

c)

biocatalytic membrane

d)

artificial membrane

11.

Biosensors contains

a)

metal sensing devices

b)

immobilized enzymes

c)

mobilized enzymes

d)

bar codes

12.

Which of the following is not a characteristic of the immobilized enzymes?

a)

It produces reproducible results

b)

They cannot be re-used

c)

Stability exists

d)

Same catalytic activity is present for number of analysis

13.

Which of the following is the physico-chemical component?

a)

Enzymes

b)

Anti-bodies

c)

Transducer

d)

Cells or tissues

14.

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

15.

Transducers employed in the bulk of enzyme electrodes use which of the following principles?

a)

Amperometric

b)

Optical

c)

Magnetic

d)

Colorimetric

16.

Nanoscopic optical biosensors have fast response time but the sensitivity is reduced.

a)

True

b)

False

17.

It is the ability of the sensor to indicate the same output over a period of time for a constant input.

a)

Stability

b)

Resolution

c)

Error

d)

Impedance

18.

The ability to give same output reading when same input value is applied repeatedly is known as

a)

Stability

b)

Repeatability

c)

Accuracy

d)

Sensitivity

19.

The sensors are classified on the basis of

a)

Functions

b)

Performance

c)

Output

d)

All of the above

20.

The following is not a static performance parameter to be looked into before selecting a parameter.

a)

Deflection

b)

Stability

c)

Range

d)

Error