TLS Online TPP Program

#Question id: 11125


In chemical synapses that involve a so-called second messenger, typically a G-protein linked to the postsynaptic receptor is activated when neurotransmitter binds to that receptor. Which of the following represents an activity performed by the activated second messenger?

#I Life Science/ Life Sciences Group – I-V
  1. Closure of a membrane channel for sodium or potassium
  2. Activation of cyclic AMP or cyclic GMP
  3. Inactivation of enzymes that initiate biochemical reactions in the postsynaptic neuron
  4. Inactivation of gene transcription in the postsynaptic neuron
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TLS Online TPP Program

#Question id: 5051

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

fter the 8-cell stage, the mammalian embryo develops an outer layer (which becomes the fetal portion of the placenta), and an inner cell mass that generates all the cells of embryo. The cells of the inner cell mass are thus said to be-

TLS Online TPP Program

#Question id: 5051

#SCPH06 I Botany

fter the 8-cell stage, the mammalian embryo develops an outer layer (which becomes the fetal portion of the placenta), and an inner cell mass that generates all the cells of embryo. The cells of the inner cell mass are thus said to be-

TLS Online TPP Program

#Question id: 5051

#SCPH28 | Zoology

fter the 8-cell stage, the mammalian embryo develops an outer layer (which becomes the fetal portion of the placenta), and an inner cell mass that generates all the cells of embryo. The cells of the inner cell mass are thus said to be-

TLS Online TPP Program

#Question id: 5052

#SCPH01 Biochemistry

cell populations within each germ layer expand and differentiate, resident stem cells are maintained within these developing tissues and function to generate cell types with restricted specificity for the tissue in which they reside. these stem cells are-

TLS Online TPP Program

#Question id: 5052

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

cell populations within each germ layer expand and differentiate, resident stem cells are maintained within these developing tissues and function to generate cell types with restricted specificity for the tissue in which they reside. these stem cells are-

TLS Online TPP Program

#Question id: 5052

#SCPH06 I Botany

cell populations within each germ layer expand and differentiate, resident stem cells are maintained within these developing tissues and function to generate cell types with restricted specificity for the tissue in which they reside. these stem cells are-