Question

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

The question was asked in exam.

This interesting question is from Biosensors in portion Biosensors of Enzyme Technology

Answer 1

Correct choice is (d) Biosensor consists of a vessel, or series of vessels, used to perform a desired conversion by enzymic means

The best explanation: The statements which are true for biosensors are as follows:

• Biosensors convert a biological signal into an electrical signal.

• 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.

• Biosensors utilize the different biological systems such as enzymes, whole cell metabolism, ligand binding and the antibody-antigen reaction.

“Biosensor consists of a vessel, or series of vessels, used to perform a desired conversion by enzymic means” is a false statement. It is true for enzyme reactors.