Introduction to biosensors

The basic principle of a biosensor is to detect the molecular recognition and to transform it into another type of signal using a transducer.

• False

• True

What are the three main components of a biosensor?

• Bioreceptor

• Signal processor

• Transducer

• Catalyst

Which of the following is the physico-chemical component?

• Enzyme

• Antibody

• Transducer

• Cell

Which of the following features is not possessed by biosensors?

• The biocatalyst used in the biosensor must be highly specific for the purpose of the analyses

• Active site is mainly constituted by non-polar amino acids for catalysis to take place

• The response from the biosensors should be accurate, precise, reproducible and linear

• The reaction occurring in the biosensor should be as independent of such physical parameters

Immobilized enzymes are more preferred over free enzymes in producing biosensors.

• True

• False

In a biosensor ___________ is one which involves subtracting a ‘reference’ baseline signal from the sample signal.

• signal processor

• amplifier

• detector

• transducer

Look at the picture and choose the correct expression:

• It feels rough

• It looks cool

• It looks awful

This is a process by which the SENSORY RECEPTORS (of Special Senses) experience or receive certain stimulus.

• Sensation

• Perception

• Transduction

This is a process by which the BRAIN integrate and interpret received stimulus.

• Perception

• Sensation

• Transduction

This is a process by which SENSORY RECEPTORS convert raw data from stimulation into data or signal by which the brain understands 𝚊𝚔𝚊 Action Potential.

• Transduction

• Sensation

• Perception