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runner2392 runner2392
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12 years ago
A ligand binds to a receptor and a cellular response is observed, as noted below. In each case, decide which type of receptor was most likely activated. Choose the BEST answer.

ion channel opens within 1 millisecond
a) ligand-gated
b) enzyme receptor
c) G-protein coupled receptor
d) enzyme receptor or G-protein coupled receptor
e) all three

ion channel opens after a few seconds
a) ligand-gated
b) enzyme receptor
c) G-protein coupled receptor
d) enzyme receptor or G-protein coupled receptor
e) all three
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