What type of signal transduction process is first initiated when an odorant binds with a receptor on a cilium of an olfactory receptor? A) Ionotropic receptors lead to the synthesis of cyclic AMP. B) G protein receptors lead to the synthesis of cyclic AMP. C) Ca²⁺ gated chloride channels lead to the synthesis of cyclic AMP. D) Ionotropic receptors lead to the activation of G proteins. E) Cyclic AMP gated channels lead to the activation of G proteins.

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Quizplus · Accepted Answer

When an odorant binds with a receptor on a cilium of an olfactory receptor, it initiates a G protein-coupled receptor (GPCR) pathway that leads to the synthesis of cyclic AMP (cAMP). This is a classic example of a metabotropic signal transduction process.

What Type of Signal Transduction Process Is First Initiated When