Which of the following are second messengers? | vedclass

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

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$I, II$ and $III$

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(D) Second messengers are molecules that relay signals received at receptors on the cell surface to target molecules in the cytosol and/or nucleus.$I.$ Cyclic $AMP$ $(cAMP)$ is a well-known second messenger involved in various signaling pathways.$II.$ $IP_3$ (Inositol triphosphate) is generated from the hydrolysis of membrane phospholipids and acts as a second messenger to release calcium ions.$III.$ $Ca^{2+}$ (Calcium ions) act as important second messengers in many cellular processes,including muscle contraction and hormone secretion.Therefore,all three ($I, II,$ and $III$) are recognized as second messengers.

Which of the following are second messengers?
$I.$ Cyclic $AMP$
$II.$ $IP_3$
$III.$ $Ca^{2+}$
The correct option is:

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Which of the following are second messengers?$I.$ Cyclic $AMP$$II.$ $IP_3$$III.$ $Ca^{2+}$The correct option is: