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Home Q & A Board Biology-Related Homework Help General Biology
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MapHarr MapHarr
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6 years ago
Many neurotransmitter receptors are chemically activated ion channels known as:
  a. ligand-gated channels.
  b. metabotropic channels.
  c. voltage-gated channels.
  d. G protein-coupled channels. .
  e. neurotransmitter-selective channels

Question 2

Which molecule acts as a retrograde messenger at many synapses?
  a. GABA
  b. glycine
  c. serotonin
  d. substance P
  e. nitric oxide
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Jfiscella88Jfiscella88
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6 years ago
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MapHarr Author
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6 years ago
I'd be lost without this website, honestly
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