Following are certain statements regarding furanocoumarins;

 a) furanocoumarins have an attached furan ring

 b) These compounds are toxic until they are activated by sunlight in the ultraviolet A (UV-A) region (320–400 nm)  

 c) Light activated furanocoumarins can insert themselves into the double helix of DNA and bind to the pyrimidine bases, thus blocking transcription and repair and leading eventually to cell death   

 d) Phototoxic furanocoumarins are especially abundant in members of the Umbelliferae family, including celery, parsnip, and parsley.

 Which of the following combination from the above statements is correct?

TLS Online TPP Program

#Question id: 19127

#Unit 12. Applied Biology

Certain advantages of biosensors include

1. Device is tiny and biocompatible

2. Device is expensive, big in size

3. It is durable 

4. Assay should be rapid and non-accurate 

Which of the following statements are correct?

TLS Online TPP Program

#Question id: 19128

#Unit 12. Applied Biology

A biosensor has what all type of components? 

1. Biological

2. Gas phase

3. Physical

4. Suction chamber

Which of the following components are correct?

TLS Online TPP Program

#Question id: 19129

#Unit 12. Applied Biology

Physical components in a biosensor include

TLS Online TPP Program

#Question id: 19130

#Unit 12. Applied Biology

The biological component is suitably immobilized on to the transducer by which ways.

1. Enzymes are immobilized by glutaraldehyde 

2. Porous sheet like lens tissue paper or nylon net fabric are used

3. Transducer surface may not be covalently linked to this cross-linked siloxane

Which of the statements is incorrect?

TLS Online TPP Program

#Question id: 19131

#Unit 12. Applied Biology

How analyte and biological substances interacted in a biosensor?

TLS Online TPP Program

#Question id: 19132

#Unit 12. Applied Biology

Biological component interacts specifically to the analyte, which produces a physical change in reaction such as

1. Heat released or absorbed 

2. Production of electrical potential  

3. Movement of electrons 

Which of the following above statements are correct?