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TLS Online TPP Program

#Question id: 11201

Why are action potentials usually conducted in one direction?

#7. System Physiology – Animal
  1. The nodes of Ranvier conduct potentials in one direction.
  2. The brief refractory period prevents reopening of voltage-gated sodium channels.
  3. The axon hillock has a higher membrane potential than the terminals of the axon.
  4. Voltage-gated channels for both Na+ and K+ open in only one direction.
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TLS Online TPP Program

#Question id: 9204

#9. Diversity of Life Forms

Which of the following observations provides the best evidence of a biodiversity crisis?
TLS Online TPP Program

#Question id: 3035

#2. Cellular Organization

The equation used to obtain bacterial population by binary fission is
TLS Online TPP Program

#Question id: 3048

#2. Cellular Organization

 If a bacterium regenerates from an endospore that did not possess any of the plasmids that were contained in its original parent cell, the regenerated bacterium will probably
TLS Online TPP Program

#Question id: 390

#1. Molecules and their Interaction Relevant to Biology

What are the properties arising due to varying concentrations of solute in a given solvent, irrespective of the nature of solute with respect to the solvent?
TLS Online TPP Program

#Question id: 23595

#Aptitude

If A + B means A is the brother of B; A%B means A is the father of B and A × means A is the sister of B. Which of the following means M is the uncle of P?