Practice Questions

TLS Online TPP Program

#Question id: 11121

Which of the following statements concerning the mechanoreceptive receptor potential is/are true?

#I Life Science/ Life Sciences Group – I-V

Increase in stimulus energy results in an increase in receptor potential
When receptor potential rises above a certain threshold action potentials will appear in the neuron attached the receptor
Number of action potentials generated in the neuron attached to the receptor is proportional to receptor potential
All of the above are correct

More Questions

TLS Online TPP Program

#Question id: 23150

#SCPH06 I Botany

How fura-2 dye moves inside the cell through plasma membrane?

TLS Online TPP Program

#Question id: 23151

#SCPH06 I Botany

If the concentration of Ca2+ is high inside the cell and fura-2 dye is used to map the concentration which of the following conditions will prevail?

1. Fluorescence will decrease

2. Fluorescence will increase

3. Emission of light at higher wavelength

4. Emission of light at lower wavelength

Which of the following options are correct?

TLS Online TPP Program

#Question id: 23152

#SCPH06 I Botany

A fluorescent dye SNARF-1 that is sensitive to H+ concentrations can be used to monitor the cytosolic pH of

1. Alkaline cells

2. Acidic cells

Which of the following options are incorrect?

TLS Online TPP Program

#Question id: 23153

#SCPH06 I Botany

SNARF-1is a fluorescent dye used to measure which ion concentration?

TLS Online TPP Program

#Question id: 23154

#SCPH06 I Botany

When the organelles pH is acidic the how the SNARF-1 dye measures this acidity?

TLS Online TPP Program

#Question id: 23155

#SCPH06 I Botany

Match the following ions in column I with their relevant dyes column II.

Column I Column II

1. K+ a. Fura-2

2. Ca2+ b. SNARF-1

3. H+ c. Ion potassium green

Which of the following options is correct?