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TLS Online TPP Program

#Question id: 11145

Two fundamental concepts about the ion channels of a "resting" neuron are that the channels ________.

#XL - T Zoology
  1. are always open, but the concentration gradients of ions frequently change
  2. are always closed, but ions move closer to the channels during excitation
  3. are open or closed depending on their type, and are specific as to which ion can traverse them
  4. open in response to stimuli, and then close simultaneously, in unison
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TLS Online TPP Program

#Question id: 16840

#General Aptitude

Which cube can be formed by folding the given shape?
TLS Online TPP Program

#Question id: 415

#XL - S Microbiology

Which one of the following compounds does not have a large negative free energy of hydrolysis?
TLS Online TPP Program

#Question id: 7704

#XL - S Microbiology

The best classification system is that which most closely ________.
TLS Online TPP Program

#Question id: 10923

#XL - R Botany

In the modification of translocation pathways, Interference with a translocation pathway by wounding or pruning can alter the patterns established by proximity and vascular connections. In the absence of direct connections between source and sink, vascular interconnections, called
TLS Online TPP Program

#Question id: 9600

#XL - S Microbiology

 Based on the tree below, which statement is not correct?