Which of the following is not a secondary mes | vedclass

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(D) Secondary messengers are molecules that relay signals received at receptors on the cell surface to target molecules in the cytosol and/or nucleus.

Vedclass · Accepted Answer

Iodothyronines

Vedclass · Answer

(D) Secondary messengers are molecules that relay signals received at receptors on the cell surface to target molecules in the cytosol and/or nucleus.Common examples of secondary messengers include cyclic $AMP$ $(cAMP)$,cyclic $GMP$ $(cGMP)$,inositol triphosphate $(IP_3)$,diacylglycerol $(DAG)$,and calcium ions $(Ca^{++})$.Iodothyronines (thyroid hormones like $T_3$ and $T_4$) are lipid-soluble hormones that pass directly through the plasma membrane to bind with intracellular receptors.Therefore,iodothyronines are not secondary messengers.

Which of the following is not a secondary messenger?

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