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TLS Online TPP Program

#Question id: 11121

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

#Unit 7. System Physiology – Animal
  1. Increase in stimulus energy results in an increase in receptor potential
  2. When receptor potential rises above a certain threshold action potentials will appear in the neuron attached the receptor
  3. Number of action potentials generated in the neuron attached to the receptor is proportional to receptor potential
  4. All of the above are correct
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TLS Online TPP Program

#Question id: 12638

#Unit 6. System Physiology – Plant

strigolactone biosynthesis takes place , find the correct sequence of these signal transduction pathways;
a) D14* hydrolyses strigolactone and releases the products of hydrolysis. 
b) D14 disengages from the SCFMAX2 complex and returns to its original conformation, allowing it to respond to fresh strigolactone signal.
c) D14* interacts with the F-box protein MAX2 and the other partners of the SCFMAX2 ubiquitin ligase complex.
d) The α-/β-fold hydrolase D14 binds and reacts with strigolactone, changing its conformation to the active form, D14*
e) Target protein(s) are recognized by the D14*–SCFMAX2 complex and are ubiquitinated
TLS Online TPP Program

#Question id: 12969

#Unit 10. Ecological Principles

In which of the following habitats would one expect to find the highest diversity of vascular plants? 
TLS Online TPP Program

#Question id: 2800

#Unit 2. Cellular Organization

When chromatin is extracted from nuclei and viewed in the electron microscope, its form depends upon the salt concentration to which it is exposed. What is the form of chromatin when it is isolated in isotonic buffers, i.e. same salt concentration as in cells (about 0.15 M KCl)?
TLS Online TPP Program

#Question id: 11031

#Unit 7. System Physiology – Animal

Atrial systole ________.
TLS Online TPP Program

#Question id: 20988

#Unit 12. Applied Biology

Degradation of _______ could be optimized and linked to the reduction of Nitrate or Nitrous oxide