Practice Questions

TLS Online TPP Program

#Question id: 9216

Which of the following criteria have to be met for a species to qualify as invasive?

#9. Diversity of Life Forms

endemic to the area, spreads rapidly, and displaces foreign species
introduced to a new area, spreads rapidly, and displaces native species
introduced to a new area, spreads rapidly, and displaces other invasive species
endemic to the area, spreads slowly, and displaces native specie

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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?

TLS Online TPP Program

#Question id: 19129

#12. Applied Biology

Physical components in a biosensor include