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TLS Online TPP Program

#Question id: 11201

Why are action potentials usually conducted in one direction?

#I Life Science/ Life Sciences Group – I-V
  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: 358

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

Consider the following reaction at equilibrium: CO2 + H2O ⇔ H2CO3. What would be the effect of adding additional H2O?
TLS Online TPP Program

#Question id: 5556

#SCPH28 | Zoology

Contact of a sea urchin egg with signal molecules on sperm causes the egg to undergo a brief ________.
TLS Online TPP Program

#Question id: 4722

#SCPH06 I Botany

Penetrance is the percentage of individuals having a particular genotype, who express the associated phenotype, following statement, are correct about Penetrance.
TLS Online TPP Program

#Question id: 14492

#SCPH01 Biochemistry

A die is rolled. The probability of getting a number 1 or 6 on the upper face is
TLS Online TPP Program

#Question id: 17219

#SCPH28 | Zoology

What is the first stage of the General Adaptation Syndrome?