When lichens grow on bare rock, they may eventually accumulate enough organic material around them to supply the foothold for later rooted vegetation. These early pioneering lichens can be said to do what to the later arrivals?

TLS Online TPP Program

#Question id: 18904

#13. Methods in Biology

Advantages of using short half-life isotopes

TLS Online TPP Program

#Question id: 19015

#13. Methods in Biology

A combination of paper chromatography and electrophoresis involves______________

TLS Online TPP Program

#Question id: 19037

#13. Methods in Biology

In gas chromatography, the basis for separation of the components of the volatile material is the difference in________

TLS Online TPP Program

#Question id: 19044

#13. Methods in Biology

Which of the following techniques would be most useful to identify as well as quantify the presence of a known impurity in a drug substance? 

TLS Online TPP Program

#Question id: 19123

#12. Applied Biology

What is a Biosensor?

1. Device which employs a biological material to specifically interact with an analyte

2. Physical change measured and converted into an electrical signal 

3. Device which separate analytes 

Which of the following above statements are true for biosensor?

TLS Online TPP Program

#Question id: 19124

#12. Applied Biology

Biosensor is a sensing device. It senses biomolecules by sensing

1. The interaction produces some detectable physical change that is measured and converted into an electrical signal

2. The interaction produces some detectable physical change that is measured and converted into ions.

3. B. The interaction produces some detectable physical change that is measured and converted into enzyme

Which of the following above statements are true for biosensor?