Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 32767
TLS Online TPP Program

#Question id: 21246

The correct sequence of events involved in phototransduction in rods and cones in response to light is:

#7. System Physiology – Animal
  1. activation of transducin, decreased release of glutamate, structural changes in rhodopsin, closure of Na + channels, and decrease in intracellular cGMP.
  2. decreased release of glutamate, activation of transducin, closure of Na + channels, decrease in intracellular cGMP, and structural changes in rhodopsin.
  3. structural changes in rhodopsin, decrease in intracellular cGMP, decreased release of glutamate, closure of Na + channels, and activation of transducin.
  4. structural changes in rhodopsin, activation of transducin, decrease in intracellular cGMP, closure of Na + channels, and decreased release of glutamate.
More Questions
TLS Online TPP Program

#Question id: 4768

#8. Inheritance Biology

A trait that appears to be dominant in one sex but recessive in the other is called:
TLS Online TPP Program

#Question id: 407

#1. Molecules and their Interaction Relevant to Biology

The reaction A + B -> C has a DG'° of –20 kJ/mol at 25° C.  Starting under standard conditions, one can predict that:
TLS Online TPP Program

#Question id: 3293

#11. Evolution and Behavior

In a Hardy-Weinberg population of butterflies find that 32% are heterozygous at a particular locus. What should be the frequency of the homozygous individuals in this population?
TLS Online TPP Program

#Question id: 6989

#5. Developmental Biology

Adult human bone:
TLS Online TPP Program

#Question id: 8940

#9. Diversity of Life Forms

Which of the following is a correct association of an animal germ layer with the tissues or organs to which it gives rise?