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Alpha & beta receptors are categorized as ionotropic / metabotropic receptors. Explain why

Alpha & beta receptors are categorized as ionotropic / metabotropic receptors.

Explain why

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Answer #1

Metabotropic receptors

Alpha & beta receptors of adrenergic receptors are categorized as metabotropic or G-protein coupled receptors. Becase they act through the second messenger system of G-proteins. cAMP, IP3, DAG and Ca+2 are the importantt secondary messengers.

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Answer #2

Alpha and beta receptors of adrenergic system act through sercondary messengers of GPCRS, They are metabtropic receptors.

G-protein coupled receptors are also known as heptahelical (seven transmembrane-spanning) receptors or metabotropicreceptors. They are connected to the intracellular system through G-protein molecules that activate secondary messengers. The three important secondary messengers are cAMP (cyclic adenosine monophosphate), IP3 (ionositol 1,4,5-triphosphate) act through calcium ions, and DAG (diacyl glycerol).

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